Methyl chloroformate → HCID 178502278, compound

Participants

Reaction Steps

A solution of S)—N1-(4-(4-bromo-2-cyclobutyl-1H-imidazol-5-yl)pyrimidin-2-yl)propane-1,2-diamine (0.25 g, 0.72 mmol) in THF-water (1:1, 8 mL) was cooled to 0° C. and then solid NaHCO3 (0.10 g, 1.2 mmol) was added with concomitant frothing. After 5 minutes, a THF solution of methyl chloroformate (0.1 M in THF, 4.3 mL, 0.43 mmol) was added dropwise to the mixture and the reaction was maintained overnight allowing the cooling bath to expire. LCMS indicate incomplete reaction and addition methyl chloroformate solution and NaHCO3 was added. After the reaction was deemed complete by LCMS, the reaction mixture was extracted with EtOAc. The organic phase was washed with brine and dried (Na2SO4), and concentrated to give (S)-methyl 1-(4-(4-bromo-2-cyclobutyl-1H-imidazol-5-yl)pyrimidin-2-ylamino)propan-2-ylcarbamate as a yellow solid (0.19 g): LCMS (m/z) 409.0 (MH+), tR=0.63 minute.

Provenance & Evidence