tert-butyl 4-(4-bromophenyl)thio-5-oxoazepane-1-carboxylate 、
tert-butyl 3-(4-bromophenyl)thio-4-oxoazepane-1-carboxylate 、 以to provide 9-bromo-2,3,4,5-tetrahydro-1H-benzo[4,5]thieno[2,3-d]azepine (372 mg, 20%, major regio-isomer) as a colorless oil的产率得到9-bromo-2,3,4,5-tetrahydro-1H-benzo[4,5]thieno[2,3-d]azepine