Synonyms: Benzo[b]thiophene-3-carboxylic acid, 4,5,6,7-tetrahydro-2-[(2-phenylacetyl)amino]-, ethyl ester;ethyl 2-[(2-phenylacetyl)amino]-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate;Ethyl 2-[(phenylacetyl)amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate