3-(Trifluoromethyl)phenyl isocyanate → HCID 45380998, compound

Participants

Reaction Steps

A solution of (R)-tert-butyl 3-(4-amino-3-(4-aminophenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)pyrrolidine-1-carboxylate (0.100 g, 0.25 mmol) in CH2Cl2 (10 mL) was cooled in an ice-water bath. To this, 3-(trifluoromethyl)phenyl isocyanate (0.035 mL, 0.25 mmol) diluted in CH2Cl2 (5 mL) was added dropwise. The reaction was allowed to warm to room temperature and left stirring for 6 hours. The reaction proceeded until completion as judged by TLC and LC-MS, was concentrated in vacuo, resuspended in 50:50 H2O—CH3CN, and purified on a C18 column in CH3CN/H2O/0.1% TFA (1-100% gradient) to afford AD79. ESI-MS m/z [M+H]+ found 583.5, calculated 583.2.

Provenance & Evidence