PROBLEM TO BE SOLVED: To provide a novel compound suitable for use as an antitumor agent, a novel antitumor agent, and an active oxygen production agent.SOLUTION: The present invention provides a komaroviquinone compound represented by one of formulas (1)-(3) or a pharmacologically acceptable salt thereof (R1 and R2 independently represent a hydroxy group or acetoxy group R3 is a specific substituent having a triazole ring or the like R4 and R5 independently represent H, a methyl group or acetyl group R6 is H or an oxo group n is an integer of 0-2).SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】抗腫瘍剤としての使用に適した新規な化合物、新規な抗腫瘍剤、及び活性酸素産生剤の提供。【解決手段】式(1)~(3)のいずれかで表されるコマロビキノン化合物又はその薬理学的に許容される塩。(R1及びR2は各々独立にヒドロキシ基又はアセトキシ基;R3はトリアゾール環を有する特定の置換基等;R4及びR5は各々独立にH、メチル基又はアセチル基;R6はH又はオキソ基;nは、0~2の整数)【選択図】図1
