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前报,从人参Panax ginseng C.A.Meyer叶中得到十二种人参皂甙,其中两种微量新皂甙分别为20(R)-人参皂甙-Rh_2,人参皂甙-Rh_。本文继续报道两个微量成分的分离和鉴定。20(R)-原人参二醇(Ⅰ),甲醇重结晶得无色针晶,mp243～245℃。Liebermann—
According to the report, twelve ginsenosides were obtained from the ginseng Panax ginseng C.A. Meyer leaves. Two of the two new saponins were 20(R)-ginsenoside-Rh_2 and ginsenoside-Rh_. This article continues to report the isolation and identification of two trace components. 20(R)-protopanaxadiol (I), recrystallized from methanol to give colorless needles, mp 243-245°C. Liebermann—