title: Orizabins V-VIII, tetrasaccharide glycolipids from the Mexican scammony root (Ipomoea orizabensis).
abstract: An extensive investigation of the so-called jalapin resinoid obtained from roots of the Mexican scammony, Ipomoea orizabensis, using high field NMR spectroscopy led to the characterization of six glycosides, including the known scammonins I (1) and II (2) and four new tetrasaccharides of jalapinolic acid, orizabins V-VIII (3-6). All the isolates (1-6) were found to be weakly cytotoxic toward human oral epidermoid carcinoma (KB).
authors.affiliation: Departamento de Farmacia, Facultad de Química, and Jardín Botánico, Instituto de Biología, Universidad Nacional Autónoma de México, Coyoacán 04510, D.F., México.
authors.forename: B
authors.initials: B
authors.lastname: Hernández-Carlos
authors.forename: R
authors.initials: R
authors.lastname: Bye
authors.forename: R
authors.initials: R
authors.lastname: Pereda-Miranda
mesh_terms: D000972:Antineoplastic Agents, Phytogenic / Q000302:isolation & purification* / Q000494:pharmacology; D002240:Carbohydrate Sequence; D004354:Drug Screening Assays, Antitumor; D006017:Glycolipids / Q000302:isolation & purification* / Q000494:pharmacology; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008800:Mexico; D008969:Molecular Sequence Data; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011134:Polysaccharides / Q000302:isolation & purification* / Q000494:pharmacology; D016339:Spectrometry, Mass, Fast Atom Bombardment; D014407:Tumor Cells, Cultured
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D006017:Glycolipids; D011134:Polysaccharides