HCID 90415826, compound → HCID 78426334, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of N-(4-(3-((tert-butyldimethylsilyl)oxy)-2,2-dimethylpropyl)-3-(trifluoromethyl)phenyl)-2-(4-(5-ethoxy-6-((4-methoxybenzyl)oxy)pyridin-3-yl)-2-fluorophenyl)acetamide (3 g, 3.97 mmol) and HCl (4 mol/L in 1,4-dioxane, 20 mL) was stirred at 25° C. for 2 h. The mixture was concentrated. The crude material was purified by preparative HPLC (MeCN/H2O as eluants, acidic condition) twice to give a white solid of 2-(4-(5-ethoxy-6-oxo-1,6-dihydropyridin-3-yl)-2-fluorophenyl)-N-(4-(3-hydroxy-2,2-dimethylpropyl)-3-(trifluoromethyl)phenyl)acetamide (1528.59 mg, 2.94 mmol, 73.9% yield): 1H NMR (400 MHz, CD3OD) δ: 7.94 (d, J=2.0 Hz, 1H), 7.74-7.67 (m, 1H), 7.44-7.38 (m, 2H), 7.37-7.27 (m, 3H), 7.22 (d, J=2.0 Hz, 1H), 4.11 (q, J=6.8 Hz, 2H), 3.78 (s, 2H), 3.32-3.30 (m, 2H), 2.77 (s, 2H), 1.45 (t, J=6.8 Hz, 3H), 0.82 (s, 6H); ES-LCMS m/z 521 (M+1).

Provenance & Evidence