Lithium Chloride → 5-(2,5-difluoro-4-methoxyphenyl)-3-methyl-2-(phenylamino)pyrimidin-4(3H)-one

Participants

Reaction Conditions

Reaction Steps

A suspension of 5-bromo-3-methyl-2-(phenylamino)pyrimidin-4(3H)-one (Example 143, Step C, 0.100 g, 0.357 mmol), 2,5-difluoro-4-methoxyphenylboronic acid (0.081 g, 0.428 mmol), Pd(PPh3)4 (0.021 g, 0.018 mmol) and lithium chloride (0.076 g, 1.78 mmol) in dioxane (2 mL) and 2M aqueous Na2CO3 (2 mL) was stirred at 100° C. for 15 minutes. The reaction mixture was cooled to room temperature and then partitioned between EtOAc and H2O. The layers were separated and the aqueous layer was re-extracted with EtOAc (1×). The combined organic layers were dried over Na2SO4, filtered and concentrated. The crude product was purified by flash column chromatography, eluting with 5:1 CH2Cl2/EtOAc. The product was obtained (77 mg; 63%) as a grey-white solid. 1H NMR (400 MHz, DMSO-d6) δ 8.95 (br s, 1H), 7.74 (s, 1H), 7.55-7.49 (m, 2H), 7.39-7.28 (m, 3H), 7.18-7.13 (m, 2H), 3.86 (s, 3H), 3.54 (s, 3H). LRMS (ESI pos) m/e 344 (M+1).

Provenance & Evidence