METHOD FOR PRODUCING ISOINDOLINE COMPOUND OR SALT THEREOF, NOVEL ISOINDOLINE COMPOUND AND SALT THEREOF

摘要

A method for producing a compound represented by general formula (4) or a salt thereof; a novel indoline compound; and a salt of the novel indoline compound. In general formula (4), each of R¹, R², R³, R⁴, R⁵ and R¹¹ represents a hydrogen atom or the like; R⁶ represents a C_1-6 alkyl group or the like; and ring A² represents a group that is represented by general formula (5), or the like. In general formula (5), each * represents a bonding position; each of R⁷, R⁸ and R¹⁰ represents a hydrogen atom or the like; and R⁹ represents a hydrogen atom, a halogen atom or the like.