| abstract |
Provided is a method for producing a 1,5-benzothiazepin compound, the method being suitable for large, industrial scale production in which less solvent is used, intermediates are not repeatedly purified, and a high-yield of high-purity product is achieved. This method for producing a compound of formula (I) includes: a step for reacting a compound of formula (II) with a compound of formula (III) in the presence of a triazine compound to obtain a compound of formula (IV); and a step for deprotecting the compound of formula (IV) to obtain the compound of formula (I). |