Isothiazole-3-carboxylic acid, cas is 4576-90-3, it is a common heterocyclic compound, the isothiazole compound, its synthesis route is as follows.,4576-90-3
[00163] To a solution of isothiazole-3-carboxylic acid (20 mg, 0.15 mmol), EDC (32.4 mg, 0.17 mmol), HOBt (23. mg, 0.17 mmol) in DMF (0.3 mL) was added 3- amino-N-cyclopropyl-4-methyl-benzamide hydrochloride (35 mg, 0.15 mmol) followed by DIPEA (0.03 mL, 0.17 mmol). The reaction was heated at 500C for 1 h. Water (0.6 mL) was added dropwise and the reaction removed from heating. The solids were stirred overnight at room temp, filtered, and washed with water to give (42.1 mg, 91% yield). HPLC tR= 2.63 min, 99.80 % purity; LCMS 302.1 (M + H).
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Reference£º
Patent; BRISTOL-MYERS SQUIBB COMPANY; WO2008/57775; (2008); A2;,
Isothiazole – Wikipedia
Isothiazole – ScienceDirect.com