(S)-(-)-1-(4-FLUOROISOQUINOLIN-5-YL)SULFONYL-2-METHYL-1,4 ??HOMOPIPERAZINE HYDROCHLORIDE DIHYDRATE.

摘要

(S)-(-)-1-(4-fluoroisoquinolin-5-yl)sulfonyl-2-methyl-1,4 ihomopiperazine hydrochloridedihydrate; a process for producing the dihydrate; and a medicinal composition containing the dihydrate. This compound has lower hygroscopicity than anhydrouscrystals of (S)-(-)-1-(4-fluoroisoquinolin-5-yl)sulfonyl-2-methyl i1,4-homopiperazine hydrochlorideand is superior in chemical stability. It is hence useful as a medicine.