As a common heterocyclic compound, it belong isothiazole compound,3-Piperazinobenzisothiazole hydrochloride,87691-88-1,Molecular formula: C11H14ClN3S,mainly used in chemical industry, its synthesis route is as follows.,87691-88-1
EXAMPLE 5 The mixture of 2.0 g of 4-(1,2-benzisothiazol-3-yl)piperazine hydrochloride, 2.0 g of 3-(4-chlorobutyryl)-2-methyl-5,6,7,8-tetrahydro-4H-thieno[3,2-c]azepin-4-one, 2.1 g of potassium carbonate and 1.2 g of potassium iodide in 15 ml of N,N-dimethylformamide and 15 ml of toluene was stirred at 60 C. for 3 hours. After the mixture was cooled in a water bath, water was added thereto and the mixture was extracted with ethyl acetate. The organic layer was washed with saline solution, dried over magnesium sulfate and concentrated. The residue was purified by column chromatography on a silica gel, dissolved in isopropyl alcohol and ethanol-maleic acid was added thereto to make maleate. The resulting crystals were recrystallized from ethanol to give 0.90 g of 3-(4-(4-(1,2-benzisothiazol-3-yl) piperazin-1-yl)butyryl)-2-methyl-5,6,7,8-tetrahydro-4H-thieno[3,2-c]azepin-4-one maleate as white crystals, m.p. 150-152 C.
With the synthetic route has been constantly updated, we look forward to future research findings about 3-Piperazinobenzisothiazole hydrochloride,belong isothiazole compound
Reference£º
Patent; Yoshitomi Pharmaceutical Industries, Ltd.; US5532240; (1996); A;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com