NOVEL AMINONAPHTHACENE DERIVATIVES AND PROCESS FOR PREPARATION THEREOF

摘要

An aminonaphthacene derivative of the formula: (I) wherein R1 is a hydrogen atom, a hydroxyl group or a lower alkoxy group, R2 is a hydrogen atom or a hydroxyl group, R3 is a hydrogen atom or a lower alkanoyl group and R4 and R5 are, same or different, each a hydrogen atom, a lower alkyl group, a lower hydroxyalkyl group or a group of the formula: (II) wherein A is an alkylene group which may have one or more lower alkyl substituent(s) and R6 and R7 are, same or different, each a hydrogen atom, a lower alkyl group, a lower hydroxyalkyl group or a lower aminoalkyl group, and an acid addition salt thereof, which is useful as anti-tumor agent.