The chemical industry reduces the impact on the environment during synthesis 15205-15-9, name is 2-Chloro-6-fluorobenzylamine, I believe this compound will play a more active role in future production and life. 15205-15-9
Step 1: (S) -tert-Butyl (1- (4- ( (2-chloro-6-fluorobenzyl) carbamoyl) -2- (3, 4-dimethoxyphenyl) oxazol-5-yl) ethyl) carbamate[0569]To 15 mL of dichloromethane were added (S) -5- (1- ( (tert-butoxycarbonyl) amino) ethyl) -2- (3, 4-dimethoxyphenyl) oxazole-4-carboxylic acid (0.3 g, 0.764 mmol) , 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride (219.65 mg, 1.15 mmol) and 1-hydroxy-7-azabenzotriazole (156.4 mg, 1.15 mmol) . The mixture was stirred at 0 for 30 minutes. To the mixture were added dropwise (2-chloro-6-fluorophenyl) methanamine (0.12 mL, 0.92 mmol) and N, N-diisopropylethylamine (0.4 mL, 2.3 mmol) , and the mixture was stirred at rt for 12 hours. The reaction mixture was washed with water (20 mL × 3) . The organic layer was dried over anhydrous sodium sulfate. The organic solvent was removed and the residue was purified by silica gel column chromatography (PE/EtOAc (v/v) 6/1) to give the title compound as a white solid (188 mg, 46) .
The chemical industry reduces the impact on the environment during synthesis 15205-15-9. I believe this compound will play a more active role in future production and life.
Reference:
Patent; SUNSHINE LAKE PHARMA CO., LTD.; LIU, Bing; YU, Tianzhu; ZHANG, Yingjun; ZHANG, Xiangyu; ZHANG, Shiguo; CHENG, Changchung; ZHANG, Jiancun; WO2015/161830; (2015); A1;,
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