Sodium Carbonate → n-{4-[3-Amino-7-(4-morpholinylmethyl)-1h-indazol-4-yl]phenyl}-n'-[3-(trifluoromethyl)phenyl]urea

Participants

Reaction Conditions

Reaction Steps

A solution of Example 15F (80 mg, 0.22 mmol) and N-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-N′-[3-(trifluoromethyl)phenyl]urea (108 mg, 0.268 mmol) in toluene (2 mL) and ethanol (1.5 mL) was treated with a solution of Na2CO3 (58 mg) in water (1 mL), degassed with nitrogen for 2 minutes, treated with Pd(PPh3)4 (13 mg, 0.011 mmol), and degassed with nitrogen for another 2 minutes. The vial was capped and heated to 140-150° C. for 8-10 minutes with stirring in a Smith Synthesizer microwave oven (at 300 W). The reaction was poured into water and extracted three times with ethyl acetate. The combined extracts were washed with water and brine, dried (MgSO4), filtered, and concentrated. The concentrate was purified by HPLC using the conditions in Example 15H to provide 55 mg of the desired product as the trifluoroacetate salt. 1H NMR (300 MHz, DMSO-d6) δ 3.10-4.08 (m, 8H), 4.55 (s, 2H), 6.92 (d, J=7.12 Hz, 1H), 7.32 (d, J=7.46 Hz, 1H), 7.38-7.47 (m, 3H), 7.53 (t, J=7.80 Hz, 1H), 7.58-7.69 (m, 3H), 8.06 (s, 1H), 9.17 (s, 1H), 9.30 (s, 1H); MS (ESI(+)) m/e 511 (M+H)+.

Provenance & Evidence