FIELD: chemistry.
SUBSTANCE: method comprises the following steps: (1) dissolving 2-amino-2-[2-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]ethyl]-1,3-propanediol in a mixed solvent which contains a solvent in which a compound in form of its hydrochloride has high solubility and a solvent in which the hydrochloride is less soluble, so as to obtain a solution of 2-amino-2-[2-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]ethyl]-1,3-propanediol; (2) adding hydrochloric acid to the obtained solution while stirring so as to crystallise 2-amino-2-[2-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]ethyl]-1,3-propanediol hydrochloride.
EFFECT: invention relates to a method for highly efficient production of crystals of 2-amino-2-[2-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]ethyl]-1,3-propanediol hydrochloride.
11 cl, 4 dwg, 1 ex
