Metabolites of ginseng saponins by human intestinal bacteria and its preparation for an anticancer

摘要

This invention relates to ginsenoside Mc with formula (I), ##STR1## an intestinal flora metabolite of ginseng saponin and anticancer agent containing it as an active ingredient. In addition to a novel compound, the anticancer agent of this invention consists of one active ingredient elected from compound K, compound Y or 20(S)- protopanaxatriol, intestinal flora metabolites of ginseng saponin, together with one or more pharmaceutically acceptable carriers. Said agent is a novel type of potential anticancer agent since it has immunopotentiating actions including inhibitory actions on the vascularization of tumors and extravasation of cancer cells.