853799-21-0Relevant articles and documents
Synthesis of substituted benzoindolinothiazepines using 5- And 6-nitroindolines
Laconde,Depreux,Berthelot,Henichart
, p. 39 - 43 (2007/10/03)
The synthesis of benzoindolothiazepine compounds was investigated using Friedel-Crafts reactions conditions from indolines. The amine function of indolinic identity was protected to avoid an alkylation of this function by methyl iodide. It was observed that the treatment of the desired amines with commercially available methyl chlorosulfanoylbenzonate resulted in the formation of sulfonamide compounds. It was also observed that the cyclization of the carboxylic acid under Friedel-Crafts conditions resulted in the formation of the desired tetracycles.