Trifluoroacetic acid → HCID 73055445, compound

Participants

Reaction Steps

TFA (1 mL) was added to a stirred solution of tert-butyl 4-(4-((4-(2-(2-amino-2-oxoethyl)phenethyl)-5-(trifluoromethyl)pyrimidin-2-yl)amino)-2-methylphenyl)piperidine-1-carboxylate (A43) (0.16 g, 0.27 mmol) in DCM (4 mL) and the resulting solution was stirred at room temperature for 16 hours. The volatiles were removed in vacuo and the residue was partitioned between EtOAc (10 mL) and 2 M aqueous NaOH (10 mL). The aqueous layer was extracted with EtOAc (2×10 mL) then and the combined organic layers were washed with water (10 mL), brine (10 mL) and dried over MgSO4. The volatiles were removed in vacuo to give a pale yellow solid. The solid was suspended in cyclohexane and the resulting suspension filtered to give the title compound 11 as a white solid (0.085 g, 64%); 1H NMR (400 MHz, d4-MeOH) δ 8.52 (s, 1H), 7.54 (dd, J=8.4, 2.2 Hz, 1H), 7.44 (d, J=2.1 Hz, 1H), 7.29-7.23 (m, 1H), 7.23-7.15 (m, 4H), 3.67 (s, 2H), 3.23-3.11 (m, 4H), 3.10-3.01 (m, 2H), 2.91 (tt, J=11.7, 3.8 Hz, 1H), 2.80 (td, J=12.3, 2.8 Hz, 2H), 2.35 (s, 3H), 1.84-1.59 (m, 4H). LCMS-A: rt 4.962 min; m/z 498.3 [M+H]+.

Provenance & Evidence