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Suárez-González E, Sandoval-Ramírez J, Flores-Hernández J, Carrasco-Carballo A. Ginkgo biloba: Antioxidant Activity and In Silico Central Nervous System Potential. Curr Issues Mol Biol 2023; 45:9674-9691. [PMID: 38132450 PMCID: PMC10742658 DOI: 10.3390/cimb45120604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/07/2023] [Accepted: 10/10/2023] [Indexed: 12/23/2023] Open
Abstract
Ginkgo biloba (GB) extracts have been used in clinical studies as an alternative therapy for Alzheimer's disease (AD), but the exact bioaction mechanism has not yet been elucidated. In this work, an in silico study on GB metabolites was carried out using SwissTargetPrediction to determine the proteins associated with AD. The resulting proteins, AChE, MAO-A, MAO-B, β-secretase and γ-secretase, were studied by molecular docking, resulting in the finding that kaempferol, quercetin, and luteolin have multitarget potential against AD. These compounds also exhibit antioxidant activity towards reactive oxygen species (ROS), so antioxidant tests were performed on the extracts using the DPPH and ABTS techniques. The ethanol and ethyl acetate GB extracts showed an important inhibition percentage, higher than 80%, at a dose of 0.01 mg/mL. The effect of GB extracts on AD resulted in multitarget action through two pathways: firstly, inhibiting enzymes responsible for degrading neurotransmitters and forming amyloid plaques; secondly, decreasing ROS in the central nervous system (CNS), reducing its deterioration, and promoting the formation of amyloid plaques. The results of this work demonstrate the great potential of GB as a medicinal plant.
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Affiliation(s)
- Eduardo Suárez-González
- Laboratorio de Elucidación y Síntesis en Química Orgánica, ICUAP-BUAP, Puebla 72570, Mexico;
- Laboratorio de Neuromodulación, Instituto de Fisiología, BUAP, Puebla 72570, Mexico
| | - Jesús Sandoval-Ramírez
- Laboratorio de Síntesis y Modificación de Productos Naturales, FCQ-BUAP, Puebla 72570, Mexico;
| | | | - Alan Carrasco-Carballo
- Laboratorio de Elucidación y Síntesis en Química Orgánica, ICUAP-BUAP, Puebla 72570, Mexico;
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2
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Cortes-Torres AG, López-Castillo GN, Marín-Torres JL, Portillo-Reyes R, Luna F, Baca BE, Sandoval-Ramírez J, Carrasco-Carballo A. Cymbopogon citratus Essential Oil: Extraction, GC-MS, Phytochemical Analysis, Antioxidant Activity, and In Silico Molecular Docking for Protein Targets Related to CNS. Curr Issues Mol Biol 2023; 45:5164-5179. [PMID: 37367077 DOI: 10.3390/cimb45060328] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/22/2023] [Accepted: 05/30/2023] [Indexed: 06/28/2023] Open
Abstract
This study analyzed the chemical composition of Cymbopogon citratus essential oil from Puebla, México, assessed its antioxidant activity, and evaluated in silico protein-compound interactions related to central nervous system (CNS) physiology. GC-MS analysis identified myrcene (8.76%), Z-geranial (27.58%), and E-geranial (38.62%) as the main components, with 45 other compounds present, which depends on the region and growing conditions. DPPH and Folin-Ciocalteu assays using the leaves extract show a promising antioxidant effect (EC50 = 48.5 µL EO/mL), reducing reactive oxygen species. The bioinformatic tool SwissTargetPrediction (STP) shows 10 proteins as potential targets associated with CNS physiology. Moreover, protein-protein interaction diagrams suggest that muscarinic and dopamine receptors are related to each other through a third party. Molecular docking reveals that Z-geranial has higher binding energy than M1 commercial blocker and blocks M2, but not M4 muscarinic acetylcholine receptors, whereas β-pinene and myrcene block M1, M2, and M4 receptors. These actions may positively affect cardiovascular activity, memory, Alzheimer's disease, and schizophrenia. This study highlights the significance of understanding natural product interactions with physiological systems to uncover potential therapeutic agents and advanced knowledge on their benefits for human health.
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Affiliation(s)
- Ana G Cortes-Torres
- Laboratorio de Elucidación y Síntesis en Química Orgánica, ICUAP-BUAP, Puebla 72570, Mexico
- Laboratorio de Interacción Bacteria-Planta, ICCM-BUAP, Puebla 72570, Mexico
| | - Guiee N López-Castillo
- Laboratorio de Elucidación y Síntesis en Química Orgánica, ICUAP-BUAP, Puebla 72570, Mexico
| | | | | | - Felix Luna
- Laboratorio de Neuroendocrinología, FCQ-BUAP, Puebla 72570, Mexico
| | - Beatriz E Baca
- Laboratorio de Interacción Bacteria-Planta, ICCM-BUAP, Puebla 72570, Mexico
| | - Jesús Sandoval-Ramírez
- Laboratorio de Síntesis y Modificación de Productos Naturales, FCQ-BUAP, Puebla 72570, Mexico
| | - Alan Carrasco-Carballo
- Laboratorio de Elucidación y Síntesis en Química Orgánica, ICUAP-BUAP, Puebla 72570, Mexico
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Hernández-Rivera JA, Herrera-García M, López-Castillo GN, Sandoval-Ramírez J, Carrasco-Carballo A. Epoxide of Diosgenin Acetate Synthesis: DoE for Diastereoselective Yield Optimization, Antimicroibial, antioxidant and antiproliferative effects. Steroids 2023; 197:109256. [PMID: 37217088 DOI: 10.1016/j.steroids.2023.109256] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 05/15/2023] [Accepted: 05/19/2023] [Indexed: 05/24/2023]
Abstract
Diosgenin and its derivatives have proved a huge importance in diverse biological activities. The optimized production of the diastereoisomers of the epoxide of diosgenin acetate by means of mCPBA is reported herein. This transformation had a previous design of experiments using the application of a statistical factorial DoE of 4 parameters (nk), where one variable is varied at a time, while others stay constant. The temperature showed the greatest effect on the reaction yield; so, at 298 K the diastereomeric ratio 3:1 of α and β-epoxides, normally found, was raised to 1:1. Time was the second significant variable, but due to its high correlation with temperature, 30 minutes were required for a global 90% conversion at least. These diastereoisomers were characterized both isolated and in the mixtures obtained, to determine their antioxidant, antimicrobial and antiproliferative activity, finding a low antioxidant capacity by DPPH, but antimicrobial activity at the level of penicillin in gram negative bacteria by 1β better to 1α. The antiproliferative capacity was higher for diastereoisomer β, agreeing with the proportion of the mixture obtained by different conditions, increasing this in relation to the amount of this diastereoisomer present in hormone-dependent cancer cell lines such as Hela, PC-3 and MCF-7, with 10.0 µM obtained values of viability at 21.8 %, 35.8 % and 12.3 % respectively. DoE optimization allows to manipulate the ratio between diastereoisomers with the minimum number of experiments, extending the analysis of the effect of the ratio between diastereoisomers and the in silico potential as well as the biological activity.
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Affiliation(s)
- J A Hernández-Rivera
- Laboratorio de Elucidación y Síntesis en Química Orgánica, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 72570, Puebla, México
| | - M Herrera-García
- Laboratorio de Elucidación y Síntesis en Química Orgánica, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 72570, Puebla, México
| | - G N López-Castillo
- Laboratorio de Elucidación y Síntesis en Química Orgánica, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 72570, Puebla, México
| | - J Sandoval-Ramírez
- Laboratorio de Elucidación y Síntesis en Química Orgánica, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 72570, Puebla, México; Laboratorio de Síntesis y Modificación de Productos Naturales, Facultad de Ciencias Químicas, Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 72570, Puebla, México
| | - A Carrasco-Carballo
- Laboratorio de Elucidación y Síntesis en Química Orgánica, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 72570, Puebla, México.
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Balbuena-Hernández L, Mariana MA, Merino-Montiel P, Carrasco-Carballo A, Sandoval-Ramírez J. 22-OXOCHOLESTANES SPGP4 AND SPGP8: IN SILICO AND IN VITRO STUDY AS ACTIVATORS OF PLANT GROWTH PROMOTION. Chem Biodivers 2023; 20:e202201243. [PMID: 37062704 DOI: 10.1002/cbdv.202201243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 04/08/2023] [Accepted: 04/15/2023] [Indexed: 04/18/2023]
Abstract
The 22-oxocholestanes compounds have shown an outstanding plant growth promoting activity; they have similar bioactivity as brassinosteroids, so they are normally named as brassinosteroid analogues thinking that they also impact on the known receptor BRI1. However, in silico studies allow us to predict interactions with other receptors and thus it's possible to evaluate them, through receptors of gibberellins, auxins, jasmonates, strigolactones and the protein associated with the BRI1 gene. This paper describes the bioactivity of structures SPGP4 and SPGP8 as plant growth-promoting compounds. Both structures present coupling energies and interactions at the same level as epibrassinolide in the protein associated with BRI1 gene. Additionally, interactions through the auxin pathway and to strigolactone receptor were found using selected tests. In the rice lamina tilt, a higher effect was obtained when SPGP4 and SPGP8 were compared to epibrassinolide, although in a lesser level vis à vis to homobrassinolide. In the same way, when SPGP4 and SPGP8 were tested in the Growth Root Model an activity as strigonolactones was observed, enhancing the relationship between the main and secondary roots. However, the growth of coleptiles, when applying auxins, compounds SPGP4 and SPGP8 did not reach the same level as controls.
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Affiliation(s)
- Luis Balbuena-Hernández
- BUAP: Benemerita Universidad Autonoma de Puebla, Laboratorio de Elucidación y Síntesis en Química Orgánica, Avenida San Claudio S/N, 72530, Puebla, MEXICO
| | - Miranda-Arámbula Mariana
- CIBA: Centro de Ingenieria Genetica y Biotecnologia, Centro de Investigación en Biotecnología Aplicada-IPN, N/A, Tlaxcala, MEXICO
| | - Penélope Merino-Montiel
- BUAP: Benemerita Universidad Autonoma de Puebla, Facultad de Ciencias Químicas, Avenida San Claudio S/N, 72530, Puebla, MEXICO
| | - Alan Carrasco-Carballo
- Benemérita Universidad Autónoma de Puebla, Instituto de Ciencias, PRIV 37 ORIENTE 610 302, 72530, PUEBLA, MEXICO
| | - Jesús Sandoval-Ramírez
- BUAP: Benemerita Universidad Autonoma de Puebla, Facultad de Ciencias Químicas, Av San Claudio, 72530, PUEBLA, MEXICO
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De los Santos MG, Cua-Basulto M, Huepalcalco A, Delit W, Sandoval-Ramírez J, López-Torres A, Ruiz-Sánchez E, Fernández-Herrera MA. Fused Pyrroles in Cholestane and Norcholestane Side Chains: Acaricidal and Plant Growth-Promoting Effects. Molecules 2022; 27:molecules27238466. [PMID: 36500556 PMCID: PMC9737654 DOI: 10.3390/molecules27238466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
Herein, we describe the synthesis and characterization of fused pyrroles in cholestane and norcholestane side chains derived from kryptogenin and diosgenin, respectively. Both conventional and microwave heating techniques were used to synthesize the steroidal pyrroles from primary amines, with the microwave method producing the highest yields. In particular, the norcholestane pyrroles were tested as acaricides against the two-spotted spider mite (Tetranychus urticae Koch) under laboratory conditions and as plant growth promoters on habanero pepper (Capsicum chinense Jacq) under greenhouse conditions.
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Affiliation(s)
- María G. De los Santos
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados, Unidad Mérida, Km 6 Antigua Carretera a Progreso, Apdo, Postal 73, Cordemex, Mérida 97310, Yucatán, Mexico
| | - Marcos Cua-Basulto
- División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México Campus Conkal, Conkal 97345, Yucatán, Mexico
| | - Anallely Huepalcalco
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, Puebla 72570, Puebla, Mexico
| | - Wendy Delit
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados, Unidad Mérida, Km 6 Antigua Carretera a Progreso, Apdo, Postal 73, Cordemex, Mérida 97310, Yucatán, Mexico
| | - Jesús Sandoval-Ramírez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, Puebla 72570, Puebla, Mexico
| | - Adolfo López-Torres
- Centro de Investigaciones Científicas, Instituto de Química Aplicada, Universidad del Papaloapan, Circuito Central Num. 200, Col. Parque Industrial, Tuxtepec 68301, Oaxaca, Mexico
| | - Esaú Ruiz-Sánchez
- División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México Campus Conkal, Conkal 97345, Yucatán, Mexico
- Correspondence: (E.R.-S.); (M.A.F.-H.); Tel.: +52-(999)-912-41-35 (ext. 122) (E.R.-S.); +52-(999)-942-94-00 (ext. 2370 or 9430) (M.A.F.-H.)
| | - María A. Fernández-Herrera
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados, Unidad Mérida, Km 6 Antigua Carretera a Progreso, Apdo, Postal 73, Cordemex, Mérida 97310, Yucatán, Mexico
- Correspondence: (E.R.-S.); (M.A.F.-H.); Tel.: +52-(999)-912-41-35 (ext. 122) (E.R.-S.); +52-(999)-942-94-00 (ext. 2370 or 9430) (M.A.F.-H.)
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6
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Aguilar-Barrientos JP, Moo-Puc RE, Villanueva-Toledo JR, Murillo F, Cáceres-Castillo D, Mirón-López G, De Los Santos MG, Sandoval-Ramírez J, Zeferino-Díaz R, Fernández-Herrera MA. Microwave-enhanced synthesis of 26-amino-22-oxocholestanes and their cytotoxic activity. Steroids 2022; 183:109030. [PMID: 35367251 DOI: 10.1016/j.steroids.2022.109030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/18/2022] [Accepted: 03/28/2022] [Indexed: 10/18/2022]
Abstract
The synthesis of a series of 26-amino-22-oxocholestanes derived from diosgenin was accomplished via the substitution of an iodine atom at C-26 by primary and secondary amines. The reactions were conducted in refluxing acetonitrile and through microwave-assisted heating. The latter shows significant improvements in terms of reaction times going from hours to a few minutes or even seconds for completion. Only one of the selected amines, 4-aminourazole, did not yield the substitution product and the imine formation pathway was investigated instead, achieving the 26-iminourazole-22-oxocholestane. All the final products have been characterized and the cytotoxic activity of three of them has been evaluated in SiHa, MCF-7 and MDA tumor cell lines by the sulforhodamine B assay.
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Affiliation(s)
- Juan P Aguilar-Barrientos
- Departamento de Fisica Aplicada, Centro de Investigacion y de Estudios Avanzados, Unidad Merida, Km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex, 97310, Merida, Yuc., Mexico
| | - Rosa E Moo-Puc
- Unidad de Investigacion Medica Yucatan, Unidad Medica de Alta Especialidad, Centro Medico Ignacio Garcia Tellez, Instituto Mexicano del Seguro Social (IMSS). Calle 41 No. 439 Col. Industrial, 97150, Merida, Yuc., Mexico
| | - Jairo R Villanueva-Toledo
- Catedras CONACYT-Fundacion IMSS, A.C., CONACYT. Avenida Insurgentes Sur 1582, Alcaldia Benito Juarez, Col. Credito Constructor, 03940 Ciudad de Mexico, Mexico
| | - Fernando Murillo
- Departamento de Fisica Aplicada, Centro de Investigacion y de Estudios Avanzados, Unidad Merida, Km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex, 97310, Merida, Yuc., Mexico
| | - David Cáceres-Castillo
- Facultad de Quimica, Universidad Autonoma de Yucatan. Calle 43 No. 613 Col. Inalambrica, 97069 Merida, Yuc., Mexico
| | - Gumersindo Mirón-López
- Facultad de Quimica, Universidad Autonoma de Yucatan. Calle 43 No. 613 Col. Inalambrica, 97069 Merida, Yuc., Mexico
| | - María G De Los Santos
- Departamento de Fisica Aplicada, Centro de Investigacion y de Estudios Avanzados, Unidad Merida, Km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex, 97310, Merida, Yuc., Mexico
| | - Jesús Sandoval-Ramírez
- Facultad de Ciencias Quimicas, Benemerita Universidad Autonoma de Puebla, Ciudad Universitaria, 72570, Puebla, Pue., Mexico
| | - Reyna Zeferino-Díaz
- Facultad de Ciencias Quimicas, Benemerita Universidad Autonoma de Puebla, Ciudad Universitaria, 72570, Puebla, Pue., Mexico; Area Académica de Quimica, ICBI. Universidad Autonoma del Estado de Hidalgo. Ciudad del Conocimiento, 42184, Pachuca de Soto, Hgo., Mexico.
| | - María A Fernández-Herrera
- Departamento de Fisica Aplicada, Centro de Investigacion y de Estudios Avanzados, Unidad Merida, Km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex, 97310, Merida, Yuc., Mexico.
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Hilario-Martínez JC, Huerta A, Amaro-López JC, Alatriste V, De Los Santos MG, Martínez I, Bernès S, Sandoval-Ramírez J, Merino G, Luna F, Fernández-Herrera MA. Stereoselective synthesis of (26R)-26-hydroxydiosgenin and its effect on the regulation of rat ovarian function. Bioorg Chem 2021; 115:105189. [PMID: 34325218 DOI: 10.1016/j.bioorg.2021.105189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 07/14/2021] [Accepted: 07/15/2021] [Indexed: 10/20/2022]
Abstract
The stereoselective cyclization of a C-16 acetylated 22,26-dioxocholestene derivative to give the spirostane E and F rings, under alkaline conditions, yields exclusively the (26R)-26-hydroxydiosgenin. Both experimental and computational data support the formation of a single diastereoisomer. The effect of diosgenin and (26R)-26-hydroxydiosgenin on rat ovary is also investigated.
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Affiliation(s)
- J Ciciolil Hilario-Martínez
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados, Unidad Mérida, Km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex, 97310 Mérida, Yuc., Mexico; Facultad de Ciencias Químicas, Laboratorio de Síntesis y Modificación de Productos Naturales, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico
| | - Aurora Huerta
- Facultad de Ciencias Químicas, Laboratorio de Neuroendocrinología, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico
| | - Julio C Amaro-López
- Facultad de Ciencias Químicas, Laboratorio de Neuroendocrinología, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico
| | - Victorino Alatriste
- Facultad de Ciencias Químicas, Laboratorio de Neuroendocrinología, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico
| | - María G De Los Santos
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados, Unidad Mérida, Km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex, 97310 Mérida, Yuc., Mexico
| | - Isabel Martínez
- Facultad de Ciencias Químicas, Laboratorio de Neuroendocrinología, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico
| | - Sylvain Bernès
- Instituto de Física, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico
| | - Jesús Sandoval-Ramírez
- Facultad de Ciencias Químicas, Laboratorio de Síntesis y Modificación de Productos Naturales, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico
| | - Gabriel Merino
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados, Unidad Mérida, Km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex, 97310 Mérida, Yuc., Mexico
| | - Félix Luna
- Facultad de Ciencias Químicas, Laboratorio de Neuroendocrinología, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico.
| | - María A Fernández-Herrera
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados, Unidad Mérida, Km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex, 97310 Mérida, Yuc., Mexico.
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8
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Carrasco-Carballo A, Guadalupe Hernández-Linares M, Cárdenas-García M, Sandoval-Ramírez J. Synthesis and biological in vitro evaluation of the effect of hydroxyimino steroidal derivatives on breast cancer cells. Steroids 2021; 166:108787. [PMID: 33383064 DOI: 10.1016/j.steroids.2020.108787] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/15/2020] [Accepted: 12/21/2020] [Indexed: 01/29/2023]
Abstract
Breast cancer is the most common cause of cancer death in women, according to Global Cancer Observatory. This fact forces scientists to continue in the search for effective treatments against this aggressive type of cancer. Breast cancer frequently metastasizes to other organs, most often the bones, lungs, and liver. Breast cancer is normally associated with estrogen and progestogen levels and can be hormone or non-hormone dependent. In current experiments herein reported, some hydroxyimino spirostan derivatives showed great potential against MCF-7 breast cancer, a Luminal-A cancer. On the other hand, a set of synthesized 6-hydroxyimino-22-oxocholestane compounds had excellent activity against the MDA-MB-231 breast cancer cell line. The synthesis of hydroxyamino derivatives from spirostan and 22-oxocholestane compounds was improved. The hydroxyimino compounds enhanced the bioactivity when compared with their parent carbonyl skeletons.
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Affiliation(s)
- Alan Carrasco-Carballo
- Facultad de Ciencias Químicas, Laboratorio de Elucidación y Síntesis en Química Orgánica, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Mexico
| | - María Guadalupe Hernández-Linares
- Herbario y Jardín Botánico Universitario, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Mexico; Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Mexico
| | - Maura Cárdenas-García
- Facultad de Medicina, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Mexico
| | - Jesús Sandoval-Ramírez
- Facultad de Ciencias Químicas, Laboratorio de Elucidación y Síntesis en Química Orgánica, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Mexico.
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Hilario-Martínez JC, Murillo F, García-Méndez J, Dzib E, Sandoval-Ramírez J, Muñoz-Hernández MÁ, Bernès S, Kürti L, Duarte F, Merino G, Fernández-Herrera MA. trans-Hydroboration-oxidation products in Δ 5-steroids via a hydroboration- retro-hydroboration mechanism. Chem Sci 2020; 11:12764-12768. [PMID: 34094471 PMCID: PMC8162471 DOI: 10.1039/d0sc01701a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Herein, we report for the first time a “trans-hydroboration–oxidation product” isolated and characterized under traditional hydroboration–oxidation conditions using cholesterol and diosgenin as substrates. These substrates are excellent starting materials because of the rigidity and different structural environments around the double bond. Further investigations based on experimental evidence, in conjunction with theoretical studies, indicate that the formation of this trans-species occurs via a retro-hydroboration of the major product to generate the corresponding Δ6-structure and the subsequent hydroboration by the β-face. Besides, the corresponding Markovnikov type products have been isolated in synthetically useful yields. The behavior of the reaction under a range of temperatures is also investigated. A trans-product is isolated and characterized under traditional hydroboration–oxidation conditions using Δ5-steroids as substrates. Experimental and theoretical studies indicate that the trans-species occurs via a retro-hydroboration mechanism.![]()
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Affiliation(s)
- J Ciciolil Hilario-Martínez
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados Unidad Mérida. km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex 97310 Merida Yuc. Mexico .,Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla Ciudad Universitaria 72570 Puebla Pue. Mexico
| | - Fernando Murillo
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados Unidad Mérida. km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex 97310 Merida Yuc. Mexico
| | - Jair García-Méndez
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados Unidad Mérida. km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex 97310 Merida Yuc. Mexico
| | - Eugenia Dzib
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados Unidad Mérida. km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex 97310 Merida Yuc. Mexico
| | - Jesús Sandoval-Ramírez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla Ciudad Universitaria 72570 Puebla Pue. Mexico
| | - Miguel Ángel Muñoz-Hernández
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos Av. Universidad 1001 Cuernavaca Mor. C. P. 62209 Mexico
| | - Sylvain Bernès
- Instituto de Física, Benemérita Universidad Autónoma de Puebla Ciudad Universitaria 72570 Puebla Pue. Mexico
| | - László Kürti
- Department of Chemistry, Rice University BioScience Research Collaborative, 6500 Main Street Houston Texas 77030 USA
| | - Fernanda Duarte
- Chemistry Research Laboratory, Oxford University Mansfield Road OX1 3TA Oxford UK
| | - Gabriel Merino
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados Unidad Mérida. km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex 97310 Merida Yuc. Mexico
| | - María A Fernández-Herrera
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados Unidad Mérida. km 6 Antigua Carretera a Progreso. Apdo. Postal 73, Cordemex 97310 Merida Yuc. Mexico
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10
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Guerrero-Luna G, Hernández-Linares MG, Bernès S, Carrasco-Carballo A, Montalvo-Guerrero D, Fernández-Herrera MA, Sandoval-Ramírez J. Mesoscale Assembly of Bisteroidal Esters from Terephthalic Acid. Molecules 2020; 25:molecules25051213. [PMID: 32182644 PMCID: PMC7179421 DOI: 10.3390/molecules25051213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/24/2020] [Accepted: 03/01/2020] [Indexed: 11/16/2022] Open
Abstract
A new series of bisteroidal esters was synthesized using a spacer group, sterols and sapogenins as substrates. Steroidal dimers were prepared in high yields employing diesters of terephthalic acid as linkages at the 3β, 3'β steroidal positions. In all attempts to crystallize bisteroids, it was observed that the compounds tended to self-organize in solution, which was detected when employing various solvent systems. The non-covalent interactions (van der Waals) of the steroidal moieties of this series of symmetrical bisteroids, the polarity of the solvents systems, and the different solubilities of the bisteroid aggregates, indeed induce the molecules to self-assemble into supramolecular structures with well-defined organization. Our results show that the self-assembled structures for the bisteroidal derivatives depend on the solvent system used: with hexane/EtOAc, membrane-shaped structures were obtained, while pure EtOAc afforded strand-shaped arrangements. In the CHCl3/CH3OH system, thin strands were formed, since van der Waals interactions are lowered in this system, as a consequence of the increased solubility of the bisteroids in CHCl3. Based on the characterization by SEM and XRD, we show evidence that the phenomenon of self-assembly of bisteroids occurs presenting different morphologies depending on the solvent used. The new steroidal dimer derivatives were characterized by NMR, TGA, DSC, SEM, and XRD. Finally, the molecular structure of one bisteroid was confirmed by single-crystal X-ray analysis.
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Affiliation(s)
- Gabriel Guerrero-Luna
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico; (G.G.-L.); (A.C.-C.); (J.S.-R.)
| | - María Guadalupe Hernández-Linares
- Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico
- Laboratorio de Investigación, Herbario y Jardín Botánico Universitario, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico
- Correspondence:
| | - Sylvain Bernès
- Instituto de Física, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico;
| | - Alan Carrasco-Carballo
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico; (G.G.-L.); (A.C.-C.); (J.S.-R.)
| | - Diana Montalvo-Guerrero
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados–Unidad Mérida, km 6 Antigua Carretera a Progreso, Cordemex, 97310 Mérida, Yuc., Mexico; (D.M.-G.); (M.A.F.-H.)
| | - María A. Fernández-Herrera
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados–Unidad Mérida, km 6 Antigua Carretera a Progreso, Cordemex, 97310 Mérida, Yuc., Mexico; (D.M.-G.); (M.A.F.-H.)
| | - Jesús Sandoval-Ramírez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico; (G.G.-L.); (A.C.-C.); (J.S.-R.)
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11
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Hernández-Vázquez JMV, López-Muñoz H, Escobar-Sánchez ML, Flores-Guzmán F, Weiss-Steider B, Hilario-Martínez JC, Sandoval-Ramírez J, Fernández-Herrera MA, Sánchez Sánchez L. Apoptotic, necrotic, and antiproliferative activity of diosgenin and diosgenin glycosides on cervical cancer cells. Eur J Pharmacol 2020; 871:172942. [PMID: 31972180 DOI: 10.1016/j.ejphar.2020.172942] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 12/30/2019] [Accepted: 01/17/2020] [Indexed: 01/29/2023]
Abstract
(25R)-spirost-5-en-3β-ol, also known as diosgenin (DSG), exerts antiproliferative activity on diverse cell lines, induces apoptosis, and acts as a chemopreventative agent. However, the relationship between DSG glycosides and apoptotic, necrotic, and antiproliferative activity remains unclear. It is in this regard that we report the antiproliferative, necrotic, and apoptotic activities of DSG and its glycoside derivatives: (25R)-spirost-5-en-3β-yl O-β-D-glucopyranoside (3GD), (25R)-spirost-5-en-3β-yl O-α-L-rhamnopyranosyl-(1 → 4)-β-D-glucopyranoside (3GRD); and (25R)-spirost-5-en-3β-yl O-α-L-rhamnopyranosyl-(1 → 2)-O-[α-L-rhamnopyranosyl-(1 → 4)]-β-D-glucopyranoside), also known as dioscin (DSC), in in vitro assays of cervical HeLa and CaSki cancer cells. The results demonstrated that DSG glycosidic derivatives preserved their antiproliferative activity. However, in both cancer cell lines, 3GD and 3GRD were less potent than DSG, while DSC was more potent than DSG. With respect to necrotic activity, all tested compounds showed no or low activity on the two cervical cancer cell lines. Regarding apoptosis, the results showed that DSG glycosides were better apoptosis-inducers than DSG, suggesting that glucose and rhamnose residues play a central role in enhancing the apoptotic activity of DSG. Finally, DSG and its glycosidic derivatives were shown to affect the proliferative potential of lymphocytes (non-tumour cells) to a lesser extent than cancer cells, suggesting that these compounds have selective action. In conclusion, the results indicate that DSG and its glycosidic derivatives are promising anticancer compounds since they are compounds with low necrotic activity and selective action.
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Affiliation(s)
- José Misael Vicente Hernández-Vázquez
- Laboratorio de Biología Molecular del Cáncer, Lab. 6, 2do piso, UMIEZ, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Ejercito de Oriente, Iztapalapa, 09230, México, CDMX, Mexico
| | - Hugo López-Muñoz
- Laboratorio de Biología Molecular del Cáncer, Lab. 6, 2do piso, UMIEZ, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Ejercito de Oriente, Iztapalapa, 09230, México, CDMX, Mexico
| | - María Luisa Escobar-Sánchez
- Laboratorio de Microscopía Electrónica, Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510, México, CDMX, Mexico
| | - Fernando Flores-Guzmán
- Laboratorio de Biología Molecular del Cáncer, Lab. 6, 2do piso, UMIEZ, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Ejercito de Oriente, Iztapalapa, 09230, México, CDMX, Mexico
| | - Benny Weiss-Steider
- Laboratorio de Biología Molecular del Cáncer, Lab. 6, 2do piso, UMIEZ, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Ejercito de Oriente, Iztapalapa, 09230, México, CDMX, Mexico
| | | | - Jesús Sandoval-Ramírez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570, Puebla, Pue, Mexico.
| | - María A Fernández-Herrera
- Centro de Investigación y de Estudios Avanzados del IPN - Unidad Mérida, Departamento de Física Aplicada, Antigua Carretera a Progreso km 6, 97310, Mérida, Yucatán, Mexico
| | - Luis Sánchez Sánchez
- Laboratorio de Biología Molecular del Cáncer, Lab. 6, 2do piso, UMIEZ, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Ejercito de Oriente, Iztapalapa, 09230, México, CDMX, Mexico.
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12
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Fernández-Herrera MA, Sandoval-Ramírez J, Meza-Reyes S, Montiel-Smith S. Side-chain opening of steroidal sapogenins to form 22-oxocholestanic skeletons. An approach to analogues of the aglycone of the potent anticancer agent OSW-1. J MEX CHEM SOC 2019. [DOI: 10.29356/jmcs.v53i3.993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The side-chain opening of 25R and 25S steroidal sapogenins to form 22-oxocholestanic skeletons is described. The transformation was produced under mild conditions providing high yields (70-87%), in a one pot procedure (some acetylated starting material is recovered). This methodology yields 17-deoxy-26-oxy analogues of the aglycone of the potent anticancer agent OSW-1. All products were fully characterized by 1D and 2D NMR; the most representative displacements are briefly discussed.
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13
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Rodríguez-Acosta M, Sandoval-Ramírez J, Zeferino-Díaz R. Extraction and Characterization of Oils from Three Mexican Jatropha Species. J MEX CHEM SOC 2019. [DOI: 10.29356/jmcs.v54i2.950] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The composition of seed oil of three endemic Mexican species of Jatropha is described. Oils were analyzed through the formation of their corresponding methyl esters and their yield and composition were found to be close to that of the oil of Jatropha curcas L. The results show that the three species studied are potential sources of biofuels and therefore are promising alternative crops for biodiesel production in the arid regions of Mexico.
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14
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Zeferino-Díaz R, Olivera-Castillo L, Dávalos A, Grant G, Kantún-Moreno N, Rodriguez-Canul R, Bernès S, Sandoval-Ramírez J, Fernández-Herrera MA. 22-Oxocholestane oximes as potential anti-inflammatory drug candidates. Eur J Med Chem 2019; 168:78-86. [DOI: 10.1016/j.ejmech.2019.02.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 02/02/2019] [Accepted: 02/10/2019] [Indexed: 12/31/2022]
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15
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Sánchez-Sánchez L, Hernández-Linares MG, Escobar ML, López-Muñoz H, Zenteno E, Fernández-Herrera MA, Guerrero-Luna G, Carrasco-Carballo A, Sandoval-Ramírez J. Antiproliferative, Cytotoxic, and Apoptotic Activity of Steroidal Oximes in Cervicouterine Cell Lines. Molecules 2016; 21:molecules21111533. [PMID: 27854258 PMCID: PMC6273349 DOI: 10.3390/molecules21111533] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 11/04/2016] [Accepted: 11/07/2016] [Indexed: 02/06/2023] Open
Abstract
Steroidal sapogenins have shown antiproliferative effects against several tumor cell lines; and their effects on human cancer cells are currently under study. Changes in the functionality on the steroidal structure make it possible to modify the biological activity of compounds. Herein, we report the synthesis and in vitro antitumor activity of two steroidal oxime compounds on cervical cancer cells. These derivatives were synthesized from the steroidal sapogenin diosgenin in good yields. The in vitro assays show that the steroidal oximes show significant antiproliferative activity compared to the one observed for diosgenin. Cell proliferation, cell death, and the cytotoxic effects were determined in both cervical cancer cells and human lymphocytes. The cancer cells showed apoptotic morphology and an increased presence of active caspase-3, providing the notion of a death pathway in the cell. Significantly, the steroidal oximes did not exert a cytotoxic effect on lymphocytes.
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Affiliation(s)
- Luis Sánchez-Sánchez
- Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, 09230 Ciudad de México, Mexico.
| | | | - María L Escobar
- Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México, 04510 Ciudad de México, Mexico.
| | - Hugo López-Muñoz
- Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, 09230 Ciudad de México, Mexico.
| | - Edgar Zenteno
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, 04510 Ciudad de México, Mexico.
- Centro de Investigación UNAM-UABJO, 68120 Oaxaca, Oax., Mexico.
| | - María A Fernández-Herrera
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados-Unidad Mérida, km 6 Antigua Carretera a Progreso, Cordemex, 97310 Mérida, Yuc., Mexico.
| | - Gabriel Guerrero-Luna
- Laboratorio de Investigación, Jardín Botánico Universitario, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico.
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico.
| | - Alan Carrasco-Carballo
- Laboratorio de Investigación, Jardín Botánico Universitario, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico.
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico.
| | - Jesús Sandoval-Ramírez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico.
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16
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Hilario-Martínez JC, Zeferino-Díaz R, Muñoz-Hernández MA, Hernández-Linares MG, Cabellos JL, Merino G, Sandoval-Ramírez J, Jin Z, Fernández-Herrera MA. Regioselective Spirostan E-Ring Opening for the Synthesis of Dihydropyran Steroidal Frameworks. Org Lett 2016; 18:1772-5. [DOI: 10.1021/acs.orglett.6b00492] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J. Ciciolil Hilario-Martínez
- Departamento
de Física Aplicada, Centro de Investigación y de Estudios Avanzados, Unidad Mérida, Km 6 Antigua Carretera a Progreso, Apdo, Postal 73, Cordemex, Mérida, Yucatán 97310, México
| | - Reyna Zeferino-Díaz
- Departamento
de Física Aplicada, Centro de Investigación y de Estudios Avanzados, Unidad Mérida, Km 6 Antigua Carretera a Progreso, Apdo, Postal 73, Cordemex, Mérida, Yucatán 97310, México
| | - Miguel A. Muñoz-Hernández
- Centro
de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av Universidad 1001, Cuernavaca, Morelos C. P. 62209, México
| | | | - José Luis Cabellos
- Departamento
de Física Aplicada, Centro de Investigación y de Estudios Avanzados, Unidad Mérida, Km 6 Antigua Carretera a Progreso, Apdo, Postal 73, Cordemex, Mérida, Yucatán 97310, México
| | - Gabriel Merino
- Departamento
de Física Aplicada, Centro de Investigación y de Estudios Avanzados, Unidad Mérida, Km 6 Antigua Carretera a Progreso, Apdo, Postal 73, Cordemex, Mérida, Yucatán 97310, México
| | | | - Zhendong Jin
- Division
of Medicinal and Natural Products Chemistry, Department of Pharmaceutical
Sciences and Experimental Therapeutics, College of Pharmacy, The University of Iowa, Iowa City, Iowa 52242, United States
| | - María A. Fernández-Herrera
- Departamento
de Física Aplicada, Centro de Investigación y de Estudios Avanzados, Unidad Mérida, Km 6 Antigua Carretera a Progreso, Apdo, Postal 73, Cordemex, Mérida, Yucatán 97310, México
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17
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Sánchez-Sánchez L, Escobar ML, Sandoval-Ramírez J, López-Muñoz H, Fernández-Herrera MA, Hernández-Vázquez JMV, Hilario-Martínez C, Zenteno E. Apoptotic and autophagic cell death induced by glucolaxogenin in cervical cancer cells. Apoptosis 2015; 20:1623-35. [DOI: 10.1007/s10495-015-1181-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Viñas-Bravo O, Merino-Montiel P, Romero-López A, Montiel-Smith S, Meza-Reyes S, Meléndez FJ, Sandoval-Ramírez J. Epimerization of C-22 in (25R)- and (25S)-sapogenins. Steroids 2015; 93:60-7. [PMID: 25449764 DOI: 10.1016/j.steroids.2014.10.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 10/01/2014] [Accepted: 10/14/2014] [Indexed: 10/24/2022]
Abstract
Most of the naturally occurring steroidal sapogenins (C-23 non-substituted frameworks), possess an R configuration at the spiro C-22 center. Their C-22 epimers have become important targets in biological research. This paper describes a procedure to obtain 22S-spirostans from 22R-sapogenins and pseudosapogenin skeletons, without affecting the chirality at either C-25 or C-20. An optimal way to synthesize the pair of C-22 stereoisomers of 23-acetyldiosgenin is also reported. The latter was obtained from a 22,26-epoxycholestane or from 23-acetylfurostene compounds.
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Affiliation(s)
- Omar Viñas-Bravo
- Instituto de Química Aplicada, Universidad del Papaloapan, Circuito Central # 200, Colonia Parque Industrial, Tuxtepec, Oax. 68301, Mexico
| | - Penélope Merino-Montiel
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, Puebla, Pue. 72570, Mexico
| | - Anabel Romero-López
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, Puebla, Pue. 72570, Mexico
| | - Sara Montiel-Smith
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, Puebla, Pue. 72570, Mexico.
| | - Socorro Meza-Reyes
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, Puebla, Pue. 72570, Mexico
| | - Francisco J Meléndez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, Puebla, Pue. 72570, Mexico
| | - Jesús Sandoval-Ramírez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, Puebla, Pue. 72570, Mexico.
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19
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Fernández-Herrera MA, Zavala-Oseguera C, Cabellos JL, Sandoval-Ramírez J, Domingo LR, Merino G. Understanding the high reactivity of triazolinediones in Diels-Alder reactions. A DFT study. J Mol Model 2014; 20:2207. [DOI: 10.1007/s00894-014-2207-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 03/09/2014] [Indexed: 11/30/2022]
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20
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Fernández-Herrera MA, Sandoval-Ramírez J, Sánchez-Sánchez L, López-Muñoz H, Escobar-Sánchez ML. Probing the selective antitumor activity of 22-oxo-26-selenocyanocholestane derivatives. Eur J Med Chem 2014; 74:451-60. [DOI: 10.1016/j.ejmech.2013.12.059] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Revised: 12/29/2013] [Accepted: 12/30/2013] [Indexed: 11/26/2022]
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21
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Gómez-Calvario V, Arenas-González A, Meza-Reyes S, Montiel-Smith S, Vega-Báez JL, Sandoval-Ramírez J, Hernández-Linares MG. Synthetic pathway to 22,23-dioxocholestanic chain derivatives and their usefulness for obtaining brassinosteroid analogues. Steroids 2013; 78:902-8. [PMID: 23643845 DOI: 10.1016/j.steroids.2013.04.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 03/21/2013] [Accepted: 04/21/2013] [Indexed: 11/20/2022]
Abstract
Recognizing the functionality of the pentacyclic steroidal derivative 7a as important synthon to obtain new brassinosteroid analogs, we have accomplished the derivatization of hecogenin, a sapogenin from the 25R serie containing a carbonyl group at C-12, to a 22,23-dioxocholestanic chain derivative. Starting from hecogenin acetate (5a) or hecogenin tosylate (5b), we obtained two pentacyclic derivatives (7a and 7b) which were subjected to an oxidation reaction on the double bond at C-12(23) to obtain a 22,23-dioxocholestanic chain, with the regeneration of the carbonyl group at C-12. Reduction of the carbonyl groups lead to the 20-epi-12,23-dihydroxy-22-oxo system 11a-b. The absolute configuration of compound 11a was established by X-ray diffraction analysis.
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Affiliation(s)
- Víctor Gómez-Calvario
- Benemérita Universidad Autónoma de Puebla, Facultad de Ciencias Químicas, Ciudad Universitaria, Col. San Manuel, C.P. 72570 Puebla, Pue., Mexico
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22
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Sandoval-Ramírez J, A. Fernández-Herrera M, Montiel-Smith S, Meza-Reyes S. A Convenient Methodology for the in situ Oxidation of 4-Substituted Urazoles. Setting Up a One-Pot Procedure for the Efficient Protection of Dienes. HETEROCYCLES 2013. [DOI: 10.3987/com-12-12637] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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23
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León IDLPD, Parra-Cid MDC, Muñoz-Zurita A, Merino-Contreras SA, Montiel-Smith S, Meza-Reyes S, Ramírez-Mejía G, Sandoval-Ramírez J. Motor Effects of 1,3-Disubstituted 8-Styrylxanthines as A<sub>1</sub> and A<sub>2</sub> Adenosine-Receptor Antagonists in Rats. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/pp.2013.43044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Ramírez Hernández J, Sandoval-Ramírez J, Meza-Reyes S, Vega Báez JL, Bernès S. Westphalen's diol diacetate: 19(10→5)- abeo-5β-cholest-9-ene-3β,6β-diyl diacetate. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o3331. [PMID: 23476170 PMCID: PMC3588934 DOI: 10.1107/s1600536812045278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2012] [Accepted: 11/02/2012] [Indexed: 11/26/2022]
Abstract
The structure of the title steroid [alternative name: 3β,6β-diacetoxy-5β-methyl-19-norcholest-9(10)-ene], C31H50O4, confirms the generally accepted mechanism for the rearrangement of a cholestan-5α-ol derivative reported a century ago by Westphalen. The methyl group at position 10 of the starting material migrates to position 5 in the steroidal nucleus, while a Δ9 bond is formed, as indicated by the C=C bond length of 1.347 (4) Å. The methyl transposition leaves the 5R configuration unchanged, with the methyl oriented towards the β face. During the rearrangement, the steroidal B ring experiences a conformational distortion from chair to envelope with the C atom at position 6 as the flap. In the title structure, the isopropyl group of the side chain is disordered over two positions, with occupancies of 0.733 (10) and 0.267 (10). The carbonyl O atom in the acetyl group at C3 is also disordered with an occupancy ratio of 0.62 (4):0.38 (4).
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25
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Fernández-Herrera MA, Sandoval-Ramírez J, Bernès S, Rodríguez-Acosta M, Hernández Linares MG. (25R)-6α-Hy-droxy-5α-spiro-stan-3β-yl tosyl-ate. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o3413-4. [PMID: 23476236 PMCID: PMC3589000 DOI: 10.1107/s1600536812046600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 11/12/2012] [Indexed: 11/30/2022]
Abstract
The title steroid, C34H50O6S, is an intermediate on the synthetic route between diosgenin and brassinosteroids, which possess the A ring modified with the 2α,3α-diol functionality. The polycyclic spirostan system has the expected conformation, with six-membered rings adopting chair forms and the five-membered rings envelope forms (flap atoms are the methine C atom in the C/D-ring junction and the spiro C atom connecting rings E and F). The 3β-tosylate group is oriented in such a way that S=O bonds are engaged in intermolecular hydrogen bonds with O—H and C—H donors. Chains of molecules are formed along [100] via O—H⋯O hydrogen bonds, and secondary weak C—H⋯O interactions connect two neighbouring chains in the [001] direction.
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Affiliation(s)
- María A Fernández-Herrera
- Benemérita Universidad Autónoma de Puebla, Facultad de Ciencias Químicas, Ciudad Universitaria, Puebla, Pue. 72570, Mexico
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26
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Montiel-Smith S, Bernès S, Sandoval-Ramírez J, Meza-Reyes S, Dubois J. 3- tert-Butyl 5-methyl (2 R,4 S,5 R)-2-(4-methoxyphenyl)-4-(3-nitrophenyl)-1,3-oxazolidine-3,5-dicarboxylate. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o3146-7. [PMID: 23284466 PMCID: PMC3515246 DOI: 10.1107/s160053681204192x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Accepted: 10/06/2012] [Indexed: 11/24/2022]
Abstract
The title molecule, C23H26N2O8, was synthesized in three steps starting from m-nitrocinnamic acid. The central oxazolidine ring adopts an almost perfect envelope conformation with the O atom as the flap [puckering parameter ϕ = 0.3 (6)°]. The dihedral angle formed by the benzene rings is 61.81 (9)°. In the crystal, molecules are connected into double chains parallel to [010] by C—H⋯O hydrogen bonds. The absolute configuration was assigned from the synthetic procedure.
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27
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Viñas-Bravo O, Martinez-Pascual R, Vega-Baez JL, Gómez-Calvario V, Sandoval-Ramírez J, Montiel-Smith S, Meza-Reyes S, López-De Rosas A, Martínez-Montiel M, Reyes M, Ruiz JA. Rapid conversion of spirostans into furostan skeletons at room temperature. Steroids 2012; 77:59-66. [PMID: 22061618 DOI: 10.1016/j.steroids.2011.10.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2011] [Revised: 09/20/2011] [Accepted: 10/13/2011] [Indexed: 10/16/2022]
Abstract
We report a facile protocol to obtain 22-substituted furostans and pseudosapogenins in high yields from (25R)- and (25S)-sapogenins. This method involves the treatment of the sapogenin with acetic-trifluoroacetic mixed anhydride and BF(3)·OEt(2) at room temperature, followed by the addition of a nucleophile (H(2)O, MeOH or KSeCN). In the case of 22-hydroxyfurostans, they can be transformed to pseudosapogenins by treatment with p-toluensulfonic acid.
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Affiliation(s)
- Omar Viñas-Bravo
- Universidad del Papaloapan, Colonia Parque Industrial, Tuxtepec, Oax., México CP, Mexico
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28
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Hernández-Linares MG, Sandoval-Ramírez J, Meza-Reyes S, Montiel-Smith S, Guerrero-Luna G. Stereospecific synthesis of new steroidal isoxazoles in dry media. Steroids 2011; 76:1521-6. [PMID: 21872615 DOI: 10.1016/j.steroids.2011.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2011] [Revised: 08/11/2011] [Accepted: 08/11/2011] [Indexed: 11/27/2022]
Abstract
An easy and fast procedure was developed for one-pot synthesis of steroidal isoxazoles starting from 23-acetylsapogenins derivatives in presence of P2O5/SiO2 in dry media under microwaves irradiation is described. Substrates of the 25S and 25R series were used as raw materials, establishing that this new methodology is applicable to both series.
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Affiliation(s)
- María Guadalupe Hernández-Linares
- Escuela de Ingeniería en Petróleos e Ingeniería Química, Universidad del Istmo, Ciudad Universitaria S/N, C.P. 70760 Sto. Domingo Tehuantepec, Oax., Mexico.
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29
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Fernández-Herrera MA, López-Muñoz H, Hernández-Vázquez JM, López-Dávila M, Mohan S, Escobar-Sánchez ML, Sánchez-Sánchez L, Pinto BM, Sandoval-Ramírez J. Synthesis and biological evaluation of the glycoside (25R)-3β,16β-diacetoxy-22-oxocholest-5-en-26-yl β-d-glucopyranoside: A selective anticancer agent in cervicouterine cell lines. Eur J Med Chem 2011; 46:3877-86. [DOI: 10.1016/j.ejmech.2011.05.058] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Revised: 05/11/2011] [Accepted: 05/13/2011] [Indexed: 10/18/2022]
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30
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Pérez-Díaz JOH, Vega-Baez JL, Sandoval-Ramírez J, Meza-Reyes S, Montiel-Smith S, Farfán N, Santillan R. Novel steroidal penta- and hexacyclic compounds derived from 12-oxospirostan sapogenins. Steroids 2010; 75:1127-36. [PMID: 20655321 DOI: 10.1016/j.steroids.2010.07.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2010] [Revised: 07/12/2010] [Accepted: 07/14/2010] [Indexed: 11/18/2022]
Abstract
The E ring regioselective acid-catalyzed opening of spirostanic sapogenins possessing a carbonyl group at C-12, such as botogenin and hecogenin, provided the new 12,23-cyclo-22,26-epoxycholesta-11,22-diene skeleton, in addition to new compounds of the already known 12,23-cyclocholest-12(23)-en-22-one frameworks. This transformation proceeds in a single step, under slightly acidic conditions. Both, penta- and hexacyclic steroids were obtained with retention of configuration of all asymmetric centers.
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Affiliation(s)
- José Oscar H Pérez-Díaz
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN, México DF, Mexico
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31
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Fernández-Herrera MA, Mohan S, López-Muñoz H, Hernández-Vázquez JM, Pérez-Cervantes E, Escobar-Sánchez ML, Sánchez-Sánchez L, Regla I, Pinto BM, Sandoval-Ramírez J. Synthesis of the steroidal glycoside (25R)-3β,16β-diacetoxy-12,22-dioxo-5α-cholestan-26-yl β-d-glucopyranoside and its anti-cancer properties on cervicouterine HeLa, CaSki, and ViBo cells. Eur J Med Chem 2010; 45:4827-37. [DOI: 10.1016/j.ejmech.2010.07.051] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2010] [Revised: 07/26/2010] [Accepted: 07/27/2010] [Indexed: 10/19/2022]
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32
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Fernández-Herrera MA, López-Muñoz H, Hernández-Vázquez JM, López-Dávila M, Escobar-Sánchez ML, Sánchez-Sánchez L, Pinto BM, Sandoval-Ramírez J. Synthesis of 26-hydroxy-22-oxocholestanic frameworks from diosgenin and hecogenin and their in vitro antiproliferative and apoptotic activity on human cervical cancer CaSki cells. Bioorg Med Chem 2010; 18:2474-84. [DOI: 10.1016/j.bmc.2010.02.051] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Revised: 02/20/2010] [Accepted: 02/23/2010] [Indexed: 10/19/2022]
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33
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Hernández-Linares MG, Sandoval-Ramírez J, Meza-Reyes S, Montiel-Smith S, Fernández-Herrera MA, Bernès S. Deacylation reactions of 20-acetyl dinorcholanic lactones and 20,23-diacetyl furost-22-enes. Steroids 2010; 75:240-4. [PMID: 20034505 DOI: 10.1016/j.steroids.2009.12.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2009] [Revised: 12/11/2009] [Accepted: 12/14/2009] [Indexed: 10/20/2022]
Abstract
We report the deacylation of (20R)-20-acetyl-23,24-dinorcholanic lactones by hydrazine hydrate, under microwave irradiation in high yields. The elimination of the 20-acetyl group proceeded with retention of configuration which contrast with other proved deacylation methods that yield a mixture of diastereoisomers. In this way, unnatural (20R)-23,24-dinorcholanic lactones can be produced rapidly on a large scale. Both (20R)- and (20S)-lactones were prepared starting from diosgenin, hecogenin and sarsasapogenin, in 72-80% overall yields.
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Affiliation(s)
- Ma Guadalupe Hernández-Linares
- Escuela de Ingeniería Química, Universidad del Istmo, Ciudad Universitaria, Sto. Domingo Tehuantepec, Oaxaca, C.P. 70760, Mexico
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34
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Vega-Baez JL, Sandoval-Ramírez J, Meza-Reyes S, Montiel-Smith S, Gómez-Calvario V, Bernès S. Accurate stereochemistry for two related 22,26-epiminocholestene derivatives. Acta Crystallogr C 2008; 64:o214-6. [PMID: 18391392 PMCID: PMC2467522 DOI: 10.1107/s0108270108005763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2008] [Accepted: 02/29/2008] [Indexed: 11/22/2022] Open
Abstract
Regioselective opening of ring E of solasodine under various conditions afforded (25R)-22,26-epiminocholesta-5,22(N)-diene-3β,16β-diyl diacetate (previously known as 3,16-diacetyl pseudosolasodine B), C31H47NO4, or (22S,25R)-16β-hydroxy-22,26-epiminocholesta-5-en-3β-yl acetate (a derivative of the naturally occurring alkaloid oblonginine), C29H47NO3. In both cases, the reactions are carried out with retention of chirality at the C16, C20 and C25 stereogenic centers, which are found to be S, S and R, respectively. Although pseudosolasodine was synthesized 50 years ago, these accurate assignments clarify some controversial points about the actual stereochemistry for these alkaloids. This is of particular importance in the case of oblonginine, since this compound is currently under consideration for the treatment of aphasia arising from apoplexy; the present study defines a diastereoisomerically pure compound for pharmacological studies.
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Affiliation(s)
- José Luis Vega-Baez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, San Manuel, 72000 Puebla, Pue., Mexico
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35
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Rincón S, del Río RE, Sandoval-Ramírez J, Meza-Reyes S, Montiel-Smith S, Fernández MA, Farfán N, Santillan R. A new route for the preparation of the 22,23-dioxocholestane side chain from diosgenin and its application to the stereocontrolled construction of the 22R,23S-diol function. Tetrahedron 2006. [DOI: 10.1016/j.tet.2005.12.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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36
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Meza-Reyes S, Sandoval-Ramírez J, Montiel-Smith S, Hernández-Linares G, Viñas-Bravo O, Martínez-Pascual R, Fernández-Herrera MA, Vega-Báez JL, Merino-Montiel P, Santillán RL, Farfán N, Rincón S, Río RED. ß-Alkoxy-α,ß-unsaturated ketone systems in steroidal frameworks, and their conversion to 23,24- bisnorcholane lactones. ARKIVOC 2005. [DOI: 10.3998/ark.5550190.0006.626] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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37
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Fuente A, Reyes M, Alvarez YM, Ruiz JA, Vélez H, Viñas-Bravo O, Montiel-Smith S, Meza-Reyes S, Sandoval-Ramírez J. 1H and 13C NMR spectral assignment of androstane derivatives. Magn Reson Chem 2005; 43:676-8. [PMID: 15937975 DOI: 10.1002/mrc.1605] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
(1)H and (13)C NMR spectroscopic data for 5alpha-androstanes and halo-5alpha-androstanes with different substituents at positions C-3, C-9, C-11 and C-17 were examined and assigned by a combination of 1D and 2D NMR experiments. The substituent effects on the (13)C chemical shifts were compared with those of epi-androsterone, used as a reference compound. The coupling constants (n)J((19)F,(13)C) were measured for compounds 6, 8, 11 and 14.
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Affiliation(s)
- Ariadna Fuente
- Centro de Química Farmacéutica, Apartado Postal 16042, Ciudad de La Habana, Cuba
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38
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Iglesias-Arteaga MA, Símuta-Lopez EM, Xochihua-Moreno S, Viñas-Bravo O, Smith SM, Meza Reyes S, Sandoval-Ramírez J. A convenient procedure for the synthesis of 3beta-hydroxy-6-oxo-5alpha-steroids: aplication to the synthesis of laxogenin. J BRAZIL CHEM SOC 2005. [DOI: 10.1590/s0103-50532005000300011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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39
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Montiel-Smith S, Meza-Reyes S, Viñas-Bravo O, Fernández-Herrera MA, Martínez-Pascual R, Sandoval-Ramírez J, Fuente A, Reyes M, Ruiz JA. In situ preparation of mixed anhydrides containing the trifluoroacetyl moiety. Application to the esterification of cholesterol and phenol. ARKIVOC 2005. [DOI: 10.3998/ark.5550190.0006.610] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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40
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Sandoval-Ramírez J, Meza-Reyes S, del Rio R, Vazques F, Santillán R, Achab S, Bohé L. Short Synthesis of New 23-Vinyl Steroid Derivatives from Sapogenins by the Action of 9-BBN on Vinylogous Esters. European J Org Chem 2004. [DOI: 10.1002/ejoc.200400178] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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41
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Viñas-Bravo O, Hernández-Linares G, Mata-Esma MY, Martínez-Pascual R, Montiel-Smith S, Meza-Reyes S, Bernès S, Sandoval-Ramírez J, Iglesias-Arteaga MA. 1H and 13C NMR of synthetic steroid sapogenins. Part II. C-23 Substituted derivatives of (25S)-spirostanes. ARKIVOC 2003. [DOI: 10.3998/ark.5550190.0004.b16] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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42
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Sandoval-Ramírez J, Meza-Reyes S, del Río RE, Hernández-Linares G, Suárez-Rojas A, Rincón S, Farfán N, Santillan RL. Regioselective cleavage of rings E and F in sarsasapogenin. Steroids 2003; 68:199-204. [PMID: 12606011 DOI: 10.1016/s0039-128x(02)00170-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Sapogenins from the 25R and 25S series show a marked difference on the E/F regioselectivity of the spiroketal cleavage with BF(3)/Ac(2)O. In contrast to the high yield of single E-ring cleavage products from diosgenin (3) and hecogenin (5), sapogenins of the 25R series (equatorial C-27 methyl), sarsasapogenin (1, 25S series, axial C-27 methyl) yields the corresponding acetyldihydropyran, (25S)-23-acetyl-22,26-epoxy-5beta-cholest-22-ene-3beta,16beta-diyl diacetate (8), two isomeric furostenes: (E)- and (Z)-(25S)-23-acetyl-5beta-furost-22-ene-3beta,26-diyl diacetate (9 and 10) and a third one bearing an additional acetyl group: (E)-(20S,25S)-20,23-diacetyl-5beta-furost-22-ene-3beta, 26-diyl diacetate (11). The structures of the compounds were unambiguously established using two dimensional NMR techniques. The lower E/F selectivity in the cleavage of 1 is attributed to steric hindrance resulting from the axial methyl in F ring on a beta elimination forming the dihydropyran double bond in the major product 8.
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Affiliation(s)
- Jesús Sandoval-Ramírez
- Facultad de Ciencias Qui;micas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, San Manuel, Pue., Mexico.
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43
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Montiel-Smith S, Cervantes-Mejía V, Dubois J, Guénard D, Guéritte F, Sandoval-Ramírez J. Synthesis of New Analogs of the C-13 Docetaxel Side Chain By Asymmetric Aminohydroxylation. European J Org Chem 2002. [DOI: 10.1002/1099-0690(200207)2002:14<2260::aid-ejoc2260>3.0.co;2-v] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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44
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Hayallah AM, Sandoval-Ramírez J, Reith U, Schobert U, Preiss B, Schumacher B, Daly JW, Müller CE. 1,8-disubstituted xanthine derivatives: synthesis of potent A2B-selective adenosine receptor antagonists. J Med Chem 2002; 45:1500-10. [PMID: 11906291 DOI: 10.1021/jm011049y] [Citation(s) in RCA: 113] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
3-Unsubstituted xanthine derivatives bearing a cyclopentyl or a phenyl residue in the 8-position were synthesized and developed as A2B adenosine receptor antagonists. Compounds bearing polar substituents were prepared to obtain water-soluble derivatives. 1-Alkyl-8-phenylxanthine derivatives were found to exhibit high affinity for A2B adenosine receptors (ARs). 1,8-disubstituted xanthine derivatives were equipotent to or more potent than 1,3,8-trisubstituted xanthines at A2B ARs, but generally less potent at A1 and A2A, and much less potent at A3 ARs. Thus, the new compounds exhibited increased A2B selectivity versus all other AR subtypes. 9-Deazaxanthines (pyrrolo[2,3-d]pyrimidindiones) appeared to be less potent at A2B ARs than the corresponding xanthine derivatives. 1-Propyl-8-p-sulfophenylxanthine (17) was the most selective compound of the present series, exhibiting a K(i) value of 53 nM at human A2B ARs and showing greater than 180-fold selectivity versus human A1 ARs. Compound 17 was also highly selective versus rat A1 ARs (41-fold) and versus the other human AR subtypes (A2A > 400-fold and A3 > 180-fold). The compound is highly water-soluble due to its sulfonate function. 1-Butyl-8-p-carboxyphenylxanthine (10), another polar analogue bearing a carboxylate function, exhibited a K(i) value of 24 nM for A2B ARs, 49-fold selectivity versus human and 20-fold selectivity versus rat A1 ARs, and greater than 150-fold selectivity versus human A2A and A3 ARs. 8-[4-(2-Hydroxyethylamino)-2-oxoethoxy)phenyl]-1-propylxanthine (29) and 1-butyl-8-[4-(4-benzyl)piperazino-2-oxoethoxy)phenyl]xanthine (35) were among the most potent A2B antagonists showing K(i) values at A2B ARs of 1 nM, 57-fold (29) and 94-fold (35) selectivity versus human A1, ca. 30-fold selectivity versus rat A1, and greater than 400-fold selectivity versus human A2A and A3 ARs. The new potent, selective, water-soluble A2B antagonists may be useful research tools for investigating A2B receptor function.
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Affiliation(s)
- Alaa M Hayallah
- University of Bonn, Pharmaceutical Institute Poppelsdorf, Bonn, Germany
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Müller CE, Sandoval-Ramírez J, Schobert U, Geis U, Frobenius W, Klotz KN. 8-(Sulfostyryl)xanthines: water-soluble A2A-selective adenosine receptor antagonists. Bioorg Med Chem 1998; 6:707-19. [PMID: 9681137 DOI: 10.1016/s0968-0896(98)00025-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
8-(Sulfostyryl)xanthine derivatives were synthesized as water-soluble A2A-selective adenosine receptor (AR) antagonists. meta- and para-sulfostyryl-DMPX (3,7-dimethyl-1-propargylxanthine) derivatives 11a and 11b exhibited high affinity to rat A2A-AR in submicromolar concentrations, and were 20- to 30-fold selective versus rat A1-AR. Styryl-DMPX derivatives were inactive at human A2B- and A3-AR. 1,3-Dipropyl-8-p-sulfostyrylxanthine (13) or only a 7-methyl derivative (14) showed similar (13) or higher (14) A2A affinity than 11a and 11b but showed no (13) or only a low degree (14) of selectivity versus A1-, A2B-, and A3-AR. The A2A-selective sulfostyryl-DMPX derivatives exhibit high water-solubility and may be useful research tools for in vivo studies.
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Affiliation(s)
- C E Müller
- Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg, Pharmazeutische Chemie, Germany.
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Müller CE, Geis U, Hipp J, Schobert U, Frobenius W, Pawłowski M, Suzuki F, Sandoval-Ramírez J. Synthesis and structure-activity relationships of 3,7-dimethyl-1-propargylxanthine derivatives, A2A-selective adenosine receptor antagonists. J Med Chem 1997; 40:4396-405. [PMID: 9435909 DOI: 10.1021/jm970515+] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A series of 8-substituted derivatives of 3,7-dimethyl-1-propargylxanthine (DMPX) was synthesized and investigated as A2A adenosine receptor antagonists. Different synthetic strategies for the preparation of DMPX derivatives and analogues were explored. A recently developed synthetic procedure starting from 3-propargyl-5,6-diaminouracil proved to be the method of choice for the preparation of this type of xanthine derivatives. The novel compounds were investigated in radioligand binding studies at the high-affinity adenosine receptor subtypes A1 and A2A and compared with standard A2A adenosine receptor antagonists. Structure-activity relationships were analyzed in detail. 8-Styryl-substituted DMPX derivatives were identified that exhibit high affinity and selectivity for A2A adenosine receptors, including 8-(m-chlorostyryl)-DMPX (CS-DMPX, Ki A2A = 13 nM, 100-fold selective), 8-(m-bromostyryl)-DMPX (BS-DMPX, Ki A2A = 8 nM, 146-fold selective), and 8-(3,4-dimethoxystyryl)-DMPX (Ki A2A = 15 nM, 167-fold selective). These and other novel compounds are superior to the standard A2A adenosine receptor antagonists KF17837 (4) and CSC (5) with respect to A2A affinity and/or selectivity.
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Affiliation(s)
- C E Müller
- Julius-Maximilians-Universität Würzburg, Institut für Pharmazie und Lebensmittelchemie, Pharmazeutische Chemie, Germany.
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Müller CE, Sandoval-Ramírez J. A New Versatile Synthesis of Xanthines with Variable Substituents in the 1-, 3-, 7- and 8-Positions. SYNTHESIS-STUTTGART 1995. [DOI: 10.1055/s-1995-4082] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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