反应详情

The title compound was prepared from ethyl 9-bromo-4-hydroxy-4-methyl-4,5-dihydrobenzo[2,3]oxepino[4,5-d]thiazole-2-carboxylate and DAST as described in the synthesis of ethyl 9-bromo-4,4-difluoro-4,5-dihydrobenzo[2,3]oxepino[4,5-d]thiazole-2-carboxylate.