title: A new pregnane glycoside and oligosaccharide from Parabarium huaitingii.
abstract: Two new compounds, along with two known compounds, were isolated from the barks of Parabarium huaitingii, and their structures were determined as 5α-pregn-6-ene-3β,17α,20(S)-triol-20-O-β-d-digitoxopyranoside (1), cymaropyranurolactone 4-O-β-d-digitalopyranosyl-(1 → 4)-O-β-d-cymaropyranosyl-(1 → 4)-O-β-d-oleandropyranosyl-(1 → 4)-O-β-d-cymaropyranoside (2), 3β,17α,20(S)-trihydroxy-5α-pregn-6-ene (3), and 5α-pregn-6-ene-3β,17α,20(S)-triol-3-O-β-d-digitalopyranoside (4) by spectroscopic methods.
authors: Department of Chemistry, Jinan University, Guangzhou, 510632, China.
authors: Ting
authors: T
authors: Lei
authors: Lei
authors: L
authors: Zhang
authors: Hai-Yan
authors: HY
authors: Jiang
authors: Ying
authors: Y
authors: Hu
authors: Ai-Hua
authors: AH
authors: Hong
authors: Ying-Zhou
authors: YZ
authors: Cen
mesh_terms: D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D029062:Apocynaceae / Q000737:chemistry*; D003529:Cymarine / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D004354:Drug Screening Assays, Antitumor; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D006367:HeLa Cells; D006801:Humans; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D024301:Plant Bark / Q000737:chemistry; D011278:Pregnanes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D011283:Pregnenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D013237:Stereoisomerism
chemical_list: C569276:5alpha-pregn-6-ene-3beta,17alpha,20(S)-triol-20-O-beta-D-digitoxopyranoside; D000972:Antineoplastic Agents, Phytogenic; D004365:Drugs, Chinese Herbal; D006027:Glycosides; D011278:Pregnanes; D011283:Pregnenes; C569275:cymaropyranurolactone 4-O-beta-D-digitalopyranosyl-(1-4)-O-beta-D-cymaropyranosyl-(1-4)-O-beta-D-oleandropyranosyl-(1-4)-O-beta-D-cymaropyranoside; D003529:Cymarine