A method was developed for the annulation of the tetrahydrothiadiazine moiety to the imidazole and benzimidazole rings through intramolecular cyclization of S-alkyl derivatives of aminomercaptoimidazoles and -benzimidazoles. The factors controlling the stereoselectivity of the formation of the tetrahydrothiadiazine ring were revealed.
开发了一种通过S-烷基衍
生物的分子内环化,将四氢噻二嗪结构与
咪唑和
苯并咪唑环连接的方法。揭示了影响四氢噻二嗪环形成立体选择性的因素。