ANTI-TUMOR AGENT

摘要

The invention is intended to provide an excellent antitumor agent. An antitumor agent contains a glycolipid glycoside compound represented by Formula (1) or a pharmacologically acceptable salt thereof as an active ingredient:
in the formula, R 1 to R 4 are the same as or different from each other and represent an alkanoyl group or a hydrogen atom, and A represents a sugar alcohol residue or a polyol residue.