title: A new steroidal saponin from the dried stems of Asparagus officinalis L.
abstract: Yamogenin II (1), a new steroidal saponin with a unique aglycone moiety, and (25S)-spirostan-5-ene-3beta-ol-3-O-alpha-L-rhamnopyranosyl-(1,2)-[alpha-L-rhamnopyranosyl-(1,4)]-beta-D-glucopyranoside (2), were isolated from the dried stems of Asparagus officinalis L. The structure of 1 was assessed by spectroscopial analysis as (25S)-spirostan-5-ene-3beta,21-diol-3-O-alpha-L-rhamnopyranosyl-(1,2)-[alpha-L-rhamnopyranosyl-(1,4)]-beta-D-glucopyranoside.
authors.affiliation: Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, PR China.
authors.forename: Zhouxuan
authors.initials: Z
authors.lastname: Sun
authors.forename: Xuefeng
authors.initials: X
authors.lastname: Huang
authors.forename: Lingyi
authors.initials: L
authors.lastname: Kong
mesh_terms: D027761:Asparagus Plant / Q000737:chemistry*; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry*; D018547:Plant Stems; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D010936:Plant Extracts; D012503:Saponins; C551168:spirostan-5-ene-3,21-diol-3-O-rhamnopyranosyl-(1,2)-(rhamnopyranosyl-(1,4))-glucopyranoside