Cui Xiu-Ming, Jiang Zhi-Yong, Zeng Jiang, Zhou Jia-Ming, Chen Ji-Jun, Zhang Xue-Mei, Xu Luo-Shan, Wang Qiang
China Pharmaceutical University, Nanjing, China.
J Asian Nat Prod Res. 2008 Sep-Oct;10(9-10):845-9. doi: 10.1080/10286020802144776.
Two new dammarane triterpene glycosides named notoginsenosides Rw 1 (1) and Rw 2 (2) were isolated from the rhizomes of Panax notoginseng, together with 20 known compounds including protopanaxadiol (3), protopanaxatriol (4), ginsenosides Rb1 (5), Rd (6), Re (7), Rg1 (8), Rg2 (9), 20-(S)-Rg3 (10), 20-(R)-Rg(3) (11), Rh1 (12), Rh4 (13), Rf (14), 20-O-glucopyranosyl Rf (15), notoginsenosides R1 (16), R2 (17), T5 (18), S (19), T (20), and Fa (21), and koryoginsenoside R1 (22). Based on FABMS, HRFABMS, IR, (1)H, 13C, and 2D-NMR (HSQC, HMBC, and COSY) spectral data, the structures of the new compounds were elucidated as 6-O-beta-d-xylopyranosyl-20-O-beta-d-xylopyranosyl-(1 --> 6)-beta-d-glucopyranosyldammar-24-ene-3beta,6alpha,12beta,20(S)tetraol (1) and 6-O-beta-d-xylopyranosyl-(1 --> 2)-beta-d-glucopyranosyldammar-22-ene-(trans)-3beta,6alpha,12beta,20(S), 25-pentaol (2). Compounds 3, 4, 13, and 22 were isolated from P. notoginseng for the first time.
从三七根茎中分离得到两种新的达玛烷型三萜糖苷,命名为三七皂苷Rw 1(1)和Rw 2(2),同时还得到20个已知化合物,包括原人参二醇(3)、原人参三醇(4)、人参皂苷Rb1(5)、Rd(6)、Re(7)、Rg1(8)、Rg2(9)、20 -(S)-Rg3(10)、20 -(R)-Rg3(11)、Rh1(12)、Rh4(13)、Rf(14)、20 -O-吡喃葡萄糖基Rf(15)、三七皂苷R1(16)、R2(17)、T5(18)、S(19)、T(20)、Fa(21)以及高丽人参皂苷R1(22)。基于快原子轰击质谱(FABMS)、高分辨快原子轰击质谱(HRFABMS)、红外光谱(IR)、氢谱(1H)、碳谱(13C)以及二维核磁共振谱(2D -NMR,包括异核单量子相干谱(HSQC)、异核多键相关谱(HMBC)和同核相关谱(COSY))的光谱数据,确定新化合物的结构分别为6 -O-β-D-吡喃木糖基-20 -O-β-D-吡喃木糖基-(1→6)-β-D-吡喃葡萄糖基达玛-24 -烯-3β,6α,12β,20(S)-四醇(1)和6 -O-β-D-吡喃木糖基-(1→2)-β-D-吡喃葡萄糖基达玛-22 -烯-(反式)-3β,6α,12β,20(S),25 -戊醇(2)。化合物3、4、13和22首次从三七中分离得到。