Compounds as semaphorin inhibitors

摘要

Compounds represented by the general formula (1) wherein R1 and R3 are each independently hydrogen or a carboxyl group and R2 and R4 are each independently hydrogen or a hydroxyl group, or pharmaceutically acceptable salts thereof, which exhibit semaphorin-inhibitory activity and are useful as preventives or remedies for neuropathic and neurodegenerative diseases are provided.