1
|
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.
Collapse
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.
| |
Collapse
|
2
|
Shegani A, Ischyropoulou M, Roupa I, Kiritsis C, Makrypidi K, Papasavva A, Raptopoulou C, Psycharis V, Hennkens HM, Pelecanou M, Papadopoulos MS, Pirmettis I. Synthesis and evaluation of new mixed "2 + 1" Re, 99mTc and 186Re tricarbonyl dithiocarbamate complexes with different monodentate ligands. Bioorg Med Chem 2021; 47:116373. [PMID: 34467870 DOI: 10.1016/j.bmc.2021.116373] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 07/02/2021] [Revised: 08/09/2021] [Accepted: 08/10/2021] [Indexed: 11/24/2022]
Abstract
A series of "2 + 1" mixed ligand tricarbonyl complexes of the general formula fac-[Re/99mTc/186Re(CO)3(DDTC)(L)] containing diethyldithiocarbamate (DDTC) as a monoanionic bidentate ligand and a series of monodentate ligands L was synthesized, characterized and evaluated. The impact of ligand L on the radiochemical yield (RCY) and biodistribution of the final compounds was also investigated. DDTC and the appropriate L ligand [cyclohexyl isocyanide (cisc), tert-butyl isocyanide (tbi), triphenylphosphine (PPh3), methyldiphenylphosphine (PPh2Me), triphenylarsine (AsPh3), imidazole (im), and 4-aminopyridine (4AP)] readily reacted in equimolar amounts with the [Et4N]2[Re(CO)3Br3] precursor to afford fac-[Re(CO)3(DDTC)(cisc)], Re1, fac-[Re(CO)3(DDTC)(tbi)], Re2, fac-[Re(CO)3(DDTC)(PPh3)], Re3, fac-[Re(CO)3(DDTC)(PPh2Me)], Re4, fac-[Re(CO)3(DDTC)(AsPh3)], Re5, fac-[Re(CO)3(DDTC)(im)], Re6 and fac-[Re(CO)3(DDTC)(4AP)], Re7, complexes in high yields (>80%). All Re complexes were fully characterized by IR, NMR, and in addition Re4, Re5, and Re7 with X-ray crystallography. Analogous reactions as performed with Re were subsequently explored on the 99mTc and 186Re-tracer levels using the corresponding fac-[99mTc/186Re(CO)3(H2O)3]+ precursor. Complexes 99mTc1 - 99mTc5, 186Re1 and 186Re3 were obtained in high radiochemical yield (>91%), while the complexes 99mTc6, 99mTc7 and 186Re7 formed with radiochemical yields of 55%, 28%, and 75%, respectively. The 99mTc and 186Re-complexes were characterized by comparative HPLC analysis using the analogous Re complexes. During histidine and cysteine challenge experiments at 37 °C through 6 h, complexes 99mTc1 - 99mTc5 remained > 92% stable, while complexes 99mTc6 and 99mTc7 remained only 8% stable through 3 h. Similar studies for 186Re-complexes showed that 186Re1 and 186Re3 remained > 95% stable for up to 48 h, while 186Re7 had decreased to 7% after 3 h. LogD7.4 data of 99mTc1 - 99mTc5, 186Re1, and 186Re3 complexes, which ranged from 2.59 to 3.39, suggested high lipophilicity. Biodistribution studies in healthy Swiss albino mice showed hepatobiliary excretion for 99mTc1, 99mTc2, and 99mTc4, fast blood clearance for 99mTc4, while high liver uptake and retention for 99mTc3 and 99mTc5 were measured. Moreover, 99mTc2 showed high accumulation in the lungs with sustained retention (52.80% ID/g at 4 h p.i.) and significant brain uptake at 2 min p.i. (1.89% ID/g). The study showed the great influence of monodentate ligand in the synthesis and biodistribution of the mixed ligand complexes.
Collapse
Affiliation(s)
- Antonio Shegani
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece; Research Reactor Center, University of Missouri, Columbia, MO 65211, United States
| | - Myrto Ischyropoulou
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Ioanna Roupa
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Christos Kiritsis
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Konstantina Makrypidi
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Afroditi Papasavva
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Catherine Raptopoulou
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Vassilis Psycharis
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Heather M Hennkens
- Research Reactor Center, University of Missouri, Columbia, MO 65211, United States; Department of Chemistry, University of Missouri, Columbia, MO 65211, United States
| | - Maria Pelecanou
- Institute of Biosciences & Applications, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Minas S Papadopoulos
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Ioannis Pirmettis
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece.
| |
Collapse
|
3
|
Kumari P, Yadav R, Bharti R, Parvin T. Regioselective synthesis of pyrimidine-fused tetrahydropyridines and pyridines by microwave-assisted one-pot reaction. Mol Divers 2019; 24:107-117. [PMID: 30843127 DOI: 10.1007/s11030-019-09929-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 10/29/2018] [Accepted: 02/13/2019] [Indexed: 11/25/2022]
Abstract
A regioselective three-component reaction of α,β-unsaturated aldehydes, cyclic 1,3-dicarbonyls and 6-aminouracils in the presence of FeCl3·6H2O as catalyst under microwave irradiation has been demonstrated. Three-component reaction of α,β-unsaturated aldehydes like cinnamaldehyde/crotonaldehyde, cyclic 1,3-diketones such as 2-hydroxy-1,4-naphthaquinone/dimedone and 6-aminouracils provides regioselective pyrimidine-fused tetrahydropyridines tethered with cyclic 1,3-diketones. On the other hand, replacing cyclic 1,3-diketones by 4-hydroxycoumarin and keeping all other conditions the same provided a two-component pyrimidine-fused pyridines. The salient features of this methodology are operational simplicity, short reaction time, good-to-moderate yields of the products, easy purification method and regioselective products having medicinally important heterocyclic rings such as pyrimidine, tetrahydropyridine or pyridine.
Collapse
Affiliation(s)
- Pooja Kumari
- Department of Chemistry, National Institute of Technology Patna, Ashok RajPath, Patna, 800 005, India
| | - Rahul Yadav
- Department of Chemistry, National Institute of Technology Patna, Ashok RajPath, Patna, 800 005, India
| | - Ruchi Bharti
- Department of Chemistry, National Institute of Technology Patna, Ashok RajPath, Patna, 800 005, India
| | - Tasneem Parvin
- Department of Chemistry, National Institute of Technology Patna, Ashok RajPath, Patna, 800 005, India.
| |
Collapse
|