2-(2-Bromoacetamide)-3-benzoyl-4,5,6,7-tetrahydrobenzo[b]thiophene is an intermediate in the synthesis of Bentazepam (B16800), a thienodiazepine which is a benzodiazepine analog. Bentazepam possesses anxiolytic, anticonvulsant, sedative and skeletal muscle relaxant properties.