PHARMACEUTICAL COMPOSITIONS CONTAINING 6(5H)- PHENANTHRIDINONE DERIVATIVES

摘要

Neurotrophin potentiators which contain 6(5H)-phenanthridinone derivatives of general formula (I) or pharmacologically acceptable salts thereof and are useful as preventive or therapeutic drugs for nerve degeneration diseases: wherein R1, R1', R2 and R2' are each independently hydrogen or halogeno; and either of R3 and R3' is amino and the other hydrogen, with the provisos that when either of R1 and R1' is halogeno, the other is hydrogen and that when either of R2 and R2' is halogeno, the other is hydrogen.