Triethylamine → 2-Benzyl-5-(4-cyanophenyl)-7-methyl-3-oxo-8-(3-trifluoromethyl-phenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidine-6-carboxylic acid methyl ester

Participants

Reaction Steps

Intermediate 6 (100 mg, 0.24 mmol), 3-trifluoromethylphenylboronic acid (95 mg, 0.5 mmol), Et3N (250 μl, 1.8 mmol), and copper (II) acetate (50 mg, 0.4 mmol) were dissolved in DCM (10 mL), and stirring at RT was continued for 48 hours. The reaction mixture was filtered to remove the solid and the filtrate was concentrated in vacuo. The resulting residue was purified by silica gel chromatography eluting with a gradient of 0-15% MeOH in DCM. Appropriate fractions were combined and concentrated in vacuo and the resulting residue further purified using preparative HPLC system 2 to yield the title compound as a white solid (20 mg).

Provenance & Evidence