Intramolecular Cyclization of S-Alkyl Derivatives of Aminomercaptoimidazoles and -benzimidazoles as a Method for the Annulation of the Thiadiazine Ring.

摘要: A method was developed for the annulation of tetrahydrothiadiazine moiety to imidazole and benzimidazole rings through intramolecular cyclization S-alkyl derivatives aminomercaptoimidazoles -benzimidazoles. The factors controlling stereoselectivity formation ring were revealed.