Saponins of plants of Panax species collected in Central Nepal and their chemotaxonomical significance. II.
作者:TOSHINOBU MORITA、YUN-CHEUNG KONG、PAUL PUI-HAY BUT、KAM-HUNG NG、TAI-TUNG YIP、RYOJI KASAI、OSAMU TANAKA
DOI:10.1248/cpb.34.4368
日期:——
A specimen of Panax spp. collected along a trail leading from Dhunche to Singkunba, Chentral Nepal, was tentatively assigned as P. pseudo-ginseng WALL. var. elegantior (BURK.) HOO et TSEUNG(probably identical with P.japonicus C. A. MEYER var. major (BURK.) C. Y. Wu et K. M. FENG). From rhizomes of this specimen, the following saponins were isolated. Dammarane saponins : ginsenosides-Rg1 (1), -Rg2 (7), -Re (9), -Rd (14), -Rb1 (11), gypenoside XVII (15) and notogin-senosides-R1 (8) and -R2 (6).Ocotillol type saponins : majonoside-R2 (2), 24(S)-pseudo-ginsenoside-F11 (3) and pseudo-ginsenosides-RT2 (4) and -F11 (5). Oleanolic acid saponins : pseudo-ginsenoside-RT1 (12) and chikusetsusaponins-IVa (10) and -V (13). A new saponin, named pseudo-ginsenoside-RS1 (16) was also isolated and formulated as monoacetyl-ginsenoside-Re. The saponin compositions of this specimen and other Panax spp. are discussed from the viewpoints of chemotaxonomy and pharmacognosy.
在尼泊尔中部从Dhunche到Singkunba的小径上采集的一种人参属标本被初步鉴定为三七(P. pseudo-ginseng Wall. var. elegantior (Burk.) Hoo et Tseng),可能与日本人参(P. japonicus C. A. Meyer var. major (Burk.) C. Y. Wu et K. M. Feng)相同。从该标本的根茎中分离出以下皂苷:达玛烷型皂苷:人参皂苷-Rg1(1)、-Rg2(7)、-Re(9)、-Rd(14)、-Rb1(11)、竹节参皂苷 XVII(15)、伪人参皂苷-R1(8)和-R2(6)。奥卡托皂苷-R2(2)、24(S)-伪人参皂苷-F11(3)、伪人参皂苷-RT2(4)和-F11(5)。齐墩果酸皂苷:伪人参皂苷-RT1(12)、稀有皂苷-IVa(10)和-V(13)。还分离出一种新的皂苷,命名为伪人参皂苷-RS1(16),结构为单乙酰基人参皂苷-Re。从化学分类学和药理学角度讨论了该标本和其他人参属植物的皂苷组成。