摘要:
A process for producing substituted alkylamines of general formula (3) or salts thereof, characterized by reacting a metal salt of a 2-aminothiophenol derivative of general formula (1) with an amino acid N-carboxy anhydride of general formula (2) and cyclizing the obtained product under acidic conditions. By this process, substituted alkylamines typified by 1-(2-benzothiazolyl)alkylamines and salts thereof can be produced in high yields from 2-aminothiophenol derivatives on an industrial scale while keeping excellent handling properties. Even when the intended substituted alkylamine is an optically active compound, the intended product can be produced without reducing the optical purity of the optically active starting material.
摘要:
The present invention provides a process for producing a substituted alkylamine represented by the following general formula (3): or a salt thereof, which process comprises reacting a 2-aminothiophenol derivative metal salt represented by the following general formula (1): with an amino acid-N-carboxy anhydride represented by the following general formula (2): and then subjecting the reaction product to cyclization under an acidic condition. According to the present invention, a substituted alkylamine typified by 1-(2-benzthiazolyl)alkylamine, or a salt thereof can be produced from a 2-aminothiophenol derivative industrially at a high handleability at a high yield; even when the intended substituted alkylamine is an optically active compound, the intended product can be produced without reducing the optical purity of optically active raw material.