反应详情

[1-(5-Nitro-pyridin-2-yl)-azetidin-3-yloxy]-acetic acid tert-butyl ester (210 mg, 0.679 mmol) was hydrogenated as above and reacted with 2-phenyl-5-trifluoromethyl-oxazole-4-carboxylic acid (183 mg, 0.71 mmol), DIPEA (355 uL, 2.03 mmol) and BOP (315 mg. 0.74 mmol). Following work-up as above, the crude material was purified by flash chromatography to yield (1-{5-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-pyridin-2-yl}-azetidin-3-yloxy)-acetic acid tert-butyl ester as a light brown solid (169 mg). ES-MS calcd for C25H25F3N4O5 (m/e) 518.50, obsd 519.1 (M+H).

1. customwas purified by flash chromatography