Triethylamine → tert-butyl(R)-1-(2-(2-hydroxyphenyl)-7-methylquinazolin-4-yl)pyrrolidin-3-ylcarbamate

Participants

Reaction Steps

To 2-(4-chloro-7-methyl-quinazolin-2-yl)-phenol (644 mg, 2.4 mmol) in 2.9 mL of DMF at room temperature was added sequentially (R)-pyrrolidin-3-yl-carbamic acid tert-butyl ester (857 mg, 4.6 mmol) and triethylamine (662 μL, 4.8 mmol), and the reaction mixture was stirred for 12 h. The reaction mixture was diluted with water (10 mL) and CH2Cl2 (10 mL). The organic layer was separated and dried (Na2SO4), and the residue was purified by silica gel chromatography with 25-85% ethyl acetate/hexanes to give tert-butyl (R)-1-(2-(2-hydroxyphenyl)-7-methylquinazolin-4-yl)pyrrolidin-3-ylcarbamate (856 mg, 86%). LC/MS: m/z 421 (M+H)+ at 2.82 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)).

Provenance & Evidence