反应详情

A solution of 6-chloro-2-(3-(N-methylmethylsulfonamido)-4-(morpholine-4-carbonyl)phenylamino)nicotinamide (19 mg, 0.041 mmol) in morpholine (0.4 mL) in a sealed tube was stirred at 85° C. for 2 h. The morpholine was evaporated. The crude material was dissolved in 1 N aqueous HCl-MeOH (1:1, total 2 mL) and purified by reverse phase HPLC, using Shimadzu VP-ODS 20×100 mm column and eluting with 20% to 100% solvent B (10% MeOH-90% H2O-0.1% TFA) in solvent A (90% MeOH-10% H2O-0.1% TFA), to give the desired product as brown solid (11.7 mg, 38% yield) as bis-TFA salt. LCMS: (M+H)+=519.1. 1H NMR (400 MHz, methanol-d4) δ ppm 8.06 (1H, d, J=2.26 Hz), 7.90 (1H, d, J=8.78 Hz), 7.48 (1H, dd, J=8.41, 2.13 Hz), 7.26 (1H, d, J=8.53 Hz), 6.25 (1H, d, J=9.03 Hz), 3.70-3.93 (7H, m), 3.56-3.69 (7H, m), 3.41 (2H, t, J=4.64 Hz), 3.26 (3H, s), 3.06 (3H, s).

1. customThe morpholine was evaporated
2. dissolutionThe crude material was dissolved in 1 N aqueous HCl-MeOH (1:1, total 2 mL)
3. custompurified by reverse phase HPLC
4. washeluting with 20% to 100% solvent B (10% MeOH-90% H2O-0.1% TFA) in solvent A (90% MeOH-10% H2O-0.1% TFA)