反应详情

Starting from 4-difluoromethoxy-2-ethylbenzooxazole-7-carboxylic acid 4-nitro-phenyl ester (100 mg) and 2-methyl-2H-pyrazole-3-ylamine (51 mg). Purification by column chromatography on silica eluting with ethyl acetate afforded, after trituration with a mixture of diethyl ether and hexane, the title compound as a pale yellow solid (14mg).

1. customPurification by column chromatography on silica eluting with ethyl acetate
2. customafforded