Downstream synthetic route of 87691-88-1

As the paragraph descriping shows that 87691-88-1 is playing an increasingly important role.

87691-88-1, 3-Piperazinobenzisothiazole hydrochloride is a isothiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

87691-88-1, D. 1- (2-Acetvl-2, 3-dihvdro-1 H-isoindol-5-vl)-3- (4-benzordlisothiazol-3-vl- piperazin-1-vI)-propan-1-one; A mixture (suspension) of 1- (2-Acetyl-2, 3-dihydro-1 H-isoindol-5-yl)-3-chloro-propan- 1-one (2.14 g, 8.84 mmol), 3-piperazin-1-yl-benzo [d] isothiazole hydrochloride (2.49 g, 9.72 mmol), K2CO3 (3.63 g, 26.3 mmol), and Nal (1.40 g, 9.34 mmol) in anhydrous CH3CN (90 mL) under N2 was stirred at 25 OC for 20 h, then the solvent was removed in vacuo. The residue was suspended in H2O, then extracted twice with EtOAc, however a solid remained undissolved in the aqueous phase. The solid was collected by suction filtration, washing and triturating with H20, then dried in a vacuum oven at 50 C for 3 d to give the titled product (2.74 g, 71 %) as a light brown amorphous solid. ESI MS m/z 435 [M+1].

As the paragraph descriping shows that 87691-88-1 is playing an increasingly important role.

Reference£º
Patent; WARNER-LAMBERT COMPANY LLC; WO2005/66165; (2005); A1;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com