title: New acetylenic norlignan compounds from rhizomes of Curculigo crassifolia.
abstract: Two pairs of diastereoisomeric acetylenic norlignan compounds with PhCH(OR(1))CH(OR(2))CH(2)C triple bond CPh skeleta: (1R, 2R)-1-O-methylnyasicoside (1) and (1S, 2R)-1-O-methylnyasicoside (2), and (1R, 2R)-crassifogenin D (3) and (1S, 2R)- crassifogenin D (4), were isolated from the ethanolic extract of rhizomes of Curculigo crassifolia. Compounds 3 and 4 are new and their structures were elucidated on the basis of spectroscopic evidence and comparisons with literature data.
authors.affiliation: College of Life Sciences, Anhui University, Hefei 230039, P. R. China. wkjahla@sina.com
authors.forename: Kai-jin
authors.initials: KJ
authors.lastname: Wang
authors.forename: Ning
authors.initials: N
authors.lastname: Li
authors.forename: Hu
authors.initials: H
authors.lastname: Wang
mesh_terms: D000480:Alkynes / Q000737:chemistry / Q000302:isolation & purification; D031408:Curculigo / Q000737:chemistry*; D017705:Lignans / Q000737:chemistry* / Q000302:isolation & purification*; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry; D027343:Rhizome / Q000737:chemistry*; D013057:Spectrum Analysis; D013237:Stereoisomerism
chemical_list: D000480:Alkynes; D017705:Lignans; D010936:Plant Extracts
references.citation: J Nat Prod. 1999 May;62(5):734-9
references.pmid: 10346957
references.citation: Arch Pharm Res. 2007 Jan;30(1):8-12
references.pmid: 17328235