Preparation of 1,5‐Benzothiazepine‐2,4(3H,5H)‐diones The 1,5‐benzothiazepine‐2,4(3H,5H)‐diones 1a – f are obtained from 2‐aminothiophenols and S,S′‐diphenyl dithiomalonates or malonic acid and dicyclohexylcarbodiimide.
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Ried et al. (1980) studied this question.
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