title: [Further study on dammarane saponins of leaves of Panax japonicus var. major collected in Quinling Mountains China].
abstract: In continuation of our studies on the leaves of Panax japonicus var. major (Burk.) Wu et Feng, two new dammarane saponins are isolated. By means of FAB-MS and 13CNMR, their structures were elucidated as dammar-22(23)-ene-3 beta, 6 alpha, 12 beta, 20(S), 24 section-pentaol- (20-O-beta-D-glucopyranosyl)-6-O-alpha-L-rhamnopyranosyl (1-2)-beta-D- glucopyranoside (majorosids F5) and dammar-23(24)-ene-3 beta, 6 alpha, 12 beta, 20(S), 25-pentaol-(20-O-beta-D- glucopyranosyl)-6-O-alpha-L-rhamnopyranosyl(1-2)-beta-D-glucopyranoside (majoroside F6).
authors.forename: D Q
authors.initials: DQ
authors.lastname: Wang
authors.forename: B S
authors.initials: BS
authors.lastname: Feng
authors.forename: X B
authors.initials: XB
authors.lastname: Wang
authors.forename: C R
authors.initials: CR
authors.lastname: Yang
authors.forename: J
authors.initials: J
authors.lastname: Zhou
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D005894:Panax / Q000032:analysis*; D010946:Plants, Medicinal; D012503:Saponins / Q000302:isolation & purification; D014315:Triterpenes
chemical_list: D012503:Saponins; D014315:Triterpenes; C062685:majoroside F5; C062686:majoroside F6