PROBLEM TO BE SOLVED: To provide a new triterpene compound having both high antitumor activity and multiple drug resistance inhibitory activity, to provide a method of producing the same, and to provide an antitumor active agent having multiple drug resistance inhibitory activity as well.SOLUTION: This invention relates to a new triterpene compound derived from plants of Microtropis japonica.COPYRIGHT: (C)2014,JPO&INPIT【課題】高い抗腫瘍活性および多剤耐性抑制活性を併せて発揮する新規トリテルペン化合物、その製造方法及び多剤耐性抑制活性を併せ持つ抗腫瘍活性剤の提供。【解決手段】モクレイシ由来の新規トリテルペン化合物。【選択図】図1
