2-Chloroethyl isocyanate → HCID 59625574, compound

Participants

Reaction Steps

tert-Butyl (3R,5S)-3-amino-5-{[(2-tert-butyl-4-{[3-(methylsulfanyl)propyl]amino}pyrimidin-5-yl)carbonyl](2-methylpropyl)amino}piperidine-1-carboxylate (124 mg) was dissolved in THF (4 ml), chloroethyl isocyanate (24 μl) was added, and the mixture was stirred at room temperature for 1 hr. Potassium tert-butoxide (40 mg) was added and the reaction mixture was stirred at room temperature for 7 hr and further at 60° C. for 5 hr. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. The residue was subjected to silica gel column chromatography, eluted with ethyl acetate-hexane (10:90-100:0) and concentrated under reduced pressure to give the object compound (70.3 mg).

Provenance & Evidence