Synonyms: 4,5-Dimethyl-2-[[2-(1,2,3,4-tetrahydro-6,7-dimethyl-3-oxo-2-quinoxalinyl)acetyl]amino]-3-thiophenecarboxylic acid ethyl ester; Ethyl 2-{[(6,7-dimethyl-3-oxo-1,2,3,4-tetrahydro-2-quinoxalinyl)acetyl]amino}-4,5-dimethyl-3-thiophenecarboxylate Molecular Formula: C21H25N3O4S Molecular…