反应详情

温度

120 °C

A mixture of methyl 2-(2,5-dichloropyrimidin-4-ylamino)benzoate (Step 1, 50 mg, 0.16 mmol) and 4′-amino-5′-methoxy-N,2′-dimethylbiphenyl-4-carboxamide (Intermediate 31, 46 mg, 0.16 mmol) in 2-propanol is treated with conc. aqueous HCl (4 drops). The mixture is sealed and heated in a microwave at 120° C. for 20 min. The mixture is concentrated, and the residue is partitioned between ethyl acetate and sodium carbonate aqueous solution. The organic layer is concentrated to afford crude methyl 2-(5-chloro-2-(5-methoxy-2-methyl-4′-(methylcarbamoyl)biphenyl-4-ylamino)pyrimidin-4-ylamino)benzoate as a brown solid. The obtained crude product is treated with neat cyclopropylamine (0.5 mL). The mixture is heated in a sealed tube at 110° C. overnight. The mixture is concentrated and the residue is applied to RP-HPLC for purification to afford the 4′-(5-chloro-4-(2-(cyclopropylcarbamoyl)phenylamino) pyrimidin-2-ylamino)-5′-methoxy-N,2′-dimethylbiphenyl-4-carboxamide as a white solid. 1H NMR (400 MHz, CD3OD) δ 8.75 (m, 1H), 8.49 (m, 1H), 8.15 (s, 1H), 7.91 (d, 2h0, 7.73-7.71 (m, 1H), 7.60 (m, 1H), 7.46 (d, 2H), 7.30-7.26 (m, 1H), 6.98 (s, 1H), 3.88 (s, 3H), 2.96 (s. 3H), 2.90-2.86 (m, 1H), 2.15 (s, 3H), 0.86-0.83 (m, 2H), 0.67-0.65 (m, 2H); ESMS m/z 557.2 (M+H+).

1. customThe mixture is sealed
2. concentrationThe mixture is concentrated
3. customthe residue is partitioned between ethyl acetate and sodium carbonate aqueous solution
4. concentrationThe organic layer is concentrated