Trifluoroacetic acid → HCID 178425135, compound

Participants

Reaction Steps

A stirred solution of trans-tert-butyl (4-((5-bromo-3-(((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)carbamoyl)-2-methylphenyl)(methyl)amino)cyclohexyl)carbamate (0.7 g, 1.21 mmol) in DCM (8 mL) was cooled to 0° C. and TFA (2.5 mL) was added to it. Reaction mass was stirred at room temperature for 1 h. On completion, reaction was concentrated to dryness. Residue was basified with aqueous sodium bicarbonate till pH 8 and aqueous layer extracted with 20% MeOH/DCM. The combined organic layers were dried over sodium sulfate, filtered and concentrated to afford crude material which was then purified by solvent washings giving desired compound (0.5 g, 86%). LCMS: 475.20 (M+1)+; HPLC % 92.35 (@ 254 nm) (Rt; 4.416; Method: Column: YMC ODS-A 150 mm×4.6 mm×5μ; Mobile Phase: A; 0.05% TFA in water/B; 0.05% TFA in acetonitrile; Inj. Vol: 10 μL, Col. Temp.: 30° C.; Flow rate: 1.4 mL/min.; Gradient: 5% B to 95% B in 8 min, Hold for 1.5 min, 9.51-12 min 5% B); 1H NMR (DMSO-d6, 400 MHz) δ 8.21 (t, 1H), 7.18 (s, 1H), 7.01 (s, 1H), 5.85 (s, 1H), 4.23 (d, 2H), 2.63-2.66 (m, 2H), 2.55 (s, 3H), 2.17 (s, 3H), 2.10 (s, 6H), 1.79-1.82 (m, 2H), 1.60 (m, 2H), 1.46-1.49 (m, 2H), 1.06-1.09 (m, 2H).

Provenance & Evidence