Synthesis of Panax Acetylenes: Chiral Syntheses of Acetylpanaxydol, PQ-3 and Panaxydiol
作者:Mitsuru Satoh、Mitsuo Watanabe、Masatoshi Kawahata、Kunihiko Mohri、Yuki Yoshida、Kimiaki Isobe、Yasuo Fujimoto
DOI:10.1248/cpb.52.418
日期:——
Acetylpanaxydol (1-Ac), PQ-3 (2) and panaxydiol (3) and their optical isomers were synthesized from L-(+)-diethyl tartrate. The absolute configurations of 1-Ac, 2 and 3 were determined to be 1-Ac (3R,9R,10S), 2 (9R,10S) and 3 (3R,10S), respectively, by comparisons of their optical rotations and the NMR data of their MTPA esters with those of natural products.
由酒石酸L-(+)-二乙酯合成乙酰基人参(1-Ac),PQ-3(2)和人参二醇(3)及其旋光异构体。通过比较旋光度和旋光度,确定1-Ac,2和3的绝对构型分别为1-Ac(3R,9R,10S),2(9R,10S)和3(3R,10S)。其MTPA酯与天然产物的NMR数据。