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León-Rivera I, Del Río-Portilla F, Enríquez RG, Rangel-López E, Villeda J, Rios MY, Navarrete-Vázquez G, Hurtado-Días I, Guzmán-Valdivieso U, Núñez-Urquiza V, Escobedo-Martínez C. Hepta-, hexa-, penta-, tetra-, and trisaccharide resin glycosides from three species of Ipomoea and their antiproliferative activity on two glioma cell lines. Magn Reson Chem 2017; 55:214-223. [PMID: 27370528 DOI: 10.1002/mrc.4476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 06/17/2016] [Accepted: 06/23/2016] [Indexed: 06/06/2023]
Abstract
Six new partially acylated resin glycosides were isolated from convolvulin of Ipomoea purga, Ipomoea stans, and Ipomoea murucoides (Convolvulaceae). The structures of compounds 1-6 were elucidated by a combination of NMR spectroscopy and mass spectrometry. The structure of jalapinoside B (1) consists of a hexasaccharide core bonded to an 11-hydroxytetradecanoic (convolvulinic) acid forming a macrolactone acylated by a 2-methylbutanoyl, a 3-hydroxy-2-methylbutanoyl, and a quamoclinic acid B units. Purginoic acid A (2) contains a hexasaccharide core bonded to a convolvulinic acid acylated by a 3-hydroxy-2-methylbutanoyl unit. Stansin A (4) is an ester-type heterodimer, and consists of two stansoic acid A (3) units, acylated by 2-methylbutanoic and 3-hydroxy-2-methylbutanoic acids. The site of lactonization was located at C-3 of Rhamnose, and the position for the ester linkage of the monomeric unit B on the macrolactone unit A was established as C-4 of the terminal rhamnose. Compounds 5 and 6 are glycosidic acids. Murucinic acid II (5) is composed of a pentasaccharide core bonded to an 11-hydroxyhexadecanoic (jalapinolic) acid, acylated by an acetyl unit. Stansinic acid I (6) is a tetrasaccharide core bonded to a jalapinolic acid, acylated by 2-methylbutanoyl and 3-hydroxy-2-methylbutanoyl units. Preliminary testing showed the cytotoxicity of compounds 1-6 toward OVCAR and UISO-SQC-1 cancer cell lines. In addition, compound 1 showed an antiproliferative activity on glioma C6 and RG2 tumor cell lines. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Ismael León-Rivera
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
| | - Federico Del Río-Portilla
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México, Estados Unidos Mexicanos
| | - Raúl G Enríquez
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México, Estados Unidos Mexicanos
| | - Edgar Rangel-López
- Laboratorio de Amino Ácidos Excitadores, Instituto Nacional de Neurología y Neurocirugía, Ciudad de México, Estados Unidos Mexicanos
| | - Juana Villeda
- Laboratorio de Patología, Instituto Nacional de Neurología y Neurocirugía, Ciudad de México, Estados Unidos Mexicanos
| | - María Yolanda Rios
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
| | - Gabriel Navarrete-Vázquez
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
| | - Israel Hurtado-Días
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
| | - Ulises Guzmán-Valdivieso
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
| | - Verónica Núñez-Urquiza
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
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