反应详情

To a solution of (6-chloro-5-nitro-pyrimidin-4-yl)-(5-cyclopropyl-2H-pyrazol-3-yl)-amine (50 mg, 0.18 mmol) in anhydrous THF (2 mL) was added 6-amino-3-oxo-2,3-dihydro-indazole-1-carboxylic acid tert-butyl ester (67 mg, 0.27 mmol) and diisopropylethylamine (23 mg, 0.18 mmol). The mixture was stirred at RT for 14 hrs and the solvents were removed under vacuum. The residue was dissolved in CH2Cl2 (3 mL) and treated with TFA (2 mL) at RT for 2 hrs. After removal of the solvents via evaporation, the residue was reduced by hydrogen (50 psi) in MeOH (10 mL) in the presence of Pd/C (10%, 50 mg) for 3 hrs. The solution was filtered via celite, the filtrate was evaporated under vacuum, and the residue was purified by HPLC to give the desired product as white solid (22 mg). NMR (500 MHz, DMSO-d6) δ11.16 (br, 1H), 9.92 (br, 1H), 8.98 (s, 1H), 8.27 (s, 1H), 7.67 (s, 1H), 7.55 (d, 1H), 7.08 (d, 1H), 5.95 (s, 1H), 2.00 (m, 1H), 1.06 (m, 2H), 0.81 (m, 2H) ppm. MS (ES+): m/e=364.3 (M+H); LC/Method A/2.45 min.

1. customthe solvents were removed under vacuum
2. dissolutionThe residue was dissolved in CH2Cl2 (3 mL)
3. additiontreated with TFA (2 mL) at RT for 2 hrs
4. customAfter removal of the solvents
5. customvia evaporation
6. waitthe residue was reduced by hydrogen (50 psi) in MeOH (10 mL) in the presence of Pd/C (10%, 50 mg) for 3 hrs
7. filtrationThe solution was filtered via celite
8. customthe filtrate was evaporated under vacuum
9. customthe residue was purified by HPLC