反应详情

A solution of 4-[({6-[cyclohexyl(cyclopropylmethyl)amino]pyrimidin-4-yl}carbonyl)amino]-3-methylbenzenesulfonyl chloride (Intermediate 20, 100 mg; 0.22 mmol) in anhydrous THF (10 ml) was treated with beta-alanine tert-butyl ester hydrochloride (Bachem, 43 mg; 0.24 mmol) and triethylamine (60 μl; 0.43 mmol). After stirring for 4 hours, the precipitate was filtered and purified by column chromatography (silica) eluting with cyclohexane containing increasing amounts of EtOAc, to give the title compound as a yellow solid.

1. filtrationthe precipitate was filtered
2. custompurified by column chromatography (silica)
3. washeluting with cyclohexane containing
4. temperatureincreasing amounts of EtOAc