反应详情

WO 92/19607 describes that a dibenzothiazepine derivative of the formula (5) can be prepared by the steps of reacting 2-aminothiophenol with 2-fluorobenzonitrile to give 2-(2-aminophenylthio)benzonitrile, hydrolyzing the resultant to give 2-(2-carboxyphenylthio)aniline, and finally cyclizing the aniline derivative.