反应详情

0.5 mL (3.6 mmol) of triethylamine, 0.433 g (1.35 mmol) of TBTU and 325.5 mg (1.2 mmol) of 4-(4-chloro-2-fluoro-phenoxy)-3-fluoro-benzylamine were added to a solution of 250 mg (1.2 mmol) of 1-[(pyrimidine-5-carbonyl)-amino]-cyclopropanecarboxylic acid (from 1b) in 15 mL tetrahydrofuran and the mixture was stirred overnight at ambient temperature. Then the mixture was evaporated to dryness and the crude product thus obtained was purified by chromatography. The purified product was dissolved in approx. 4 mL ethyl acetate and the dropwise addition of ethereal hydrochloric acid solution caused the hydrochloride to precipitate out, which was then filtered off and dried.

1. customThen the mixture was evaporated to dryness