Triethylamine → Pyrimidine-5-carboxylic acid(1-{1-[4-(4-difluoromethoxy-phenoxy)-phenyl]-ethylcarbamoyl}-cyclopropyl)-amide

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Reaction Steps

376 μL (2.70 mmol) of triethylamine and 0.52 g (1.62 mmol) of TBTU were added to a solution of 0.28 g (1.35 mmol) of 1-[(pyrimidin-5-carbonyl)-amino]-cyclo-propanecarboxylic acid (from 1b) in 5 mL DMF and the mixture was stirred for 5 min at RT. Then 0.42 g (1.50 mmol) of 1-[4-(4-difluoromethoxy-phenoxy)-phenyl]-ethylamine was added and the mixture was stirred for 30 min at ambient temperature. The reaction mixture was purified by chromatography (reversed phase). The acetonitrile was distilled off, the aqueous phase was made basic with ammonia and extracted with dichloromethane. The organic phase was dried and evaporated down.

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