2-Pyrrolidone-5-carboxylic acid compounds.

摘要

2-Pyrrolidone-5-carboxylic acid compounds represented by the general formula: <CHEM> wherein A represents a phenyl group which may have a halogen atom on the ring as a substituent, or a pyridyl group, n represents an integer of from 1 to 4, Y represents -O- or -NH-; and pharmaceutically acceptable salts thereof. These compounds are useful for the treatment of dementia and amnesia.