2-amino-4,5 heptenoic acid derivatives useful as nitric oxide synthase inhibitors

摘要

The present invention is directed to a compound of formula I:or a pharmaceutically acceptable salt thereof, wherein:R1 is selected from the group consisting of H and methyl; andR2 is selected from the group consisting of H and methyl.The compounds possess useful nitric oxide synthetase inhibiting activity, and are expected to be useful in the treatment or prophylaxis of a disease or condition in which the synthesis or over synthesis of nitric oxide forms a contributory part.