Hydrazine → 6-{2-(Methylamino)-6-[(3R)-3-methyl-4-morpholinyl]-4-pyrimidinyl}-1H-indazol-3-amine

Participants

Reaction Conditions

Reaction Steps

To a 5-mL microwave vial was added 2-fluoro-4-{2-(methylamino)-6-[(3R)-3-methyl-4-morpholinyl]-4-pyrimidinyl}benzonitrile (270 mg, 0.824 mmol), hydrazine (0.31 mL, 9.9 mmol), Hunig's base (0.576 mL, 3.30 mmol), and ethanol (3 mL). The reaction mixture was heated at 150° C. for 70 minutes in a microwave reactor. LCMS analysis indicated good conversion, so the reaction mixture was concentrated, dissolved in DMSO and purified by RP-HPLC (8-32% CH3CN in water, 0.1% TFA). The product fractions were pooled, then basified with NaHCO3 and extracted with EtOAc. The organic layer was dried and concentrated to afford the title compound (117 mg). LC-MS (ES) m/z=340 [M+H]+. 1H NMR (400 MHz, DMSO-d6): δ 1.17-1.23 (m, 3H), 2.84 (d, J=4.0 Hz, 3H), 3.02-3.20 (m, 1H), 3.38-3.51 (m, 1H), 3.56-3.66 (m, 1H), 3.67-3.78 (m, 1H), 3.87-3.98 (m, 1H), 4.07-4.19 (m, 1H), 4.45-4.57 (m, 1H), 5.38 (s, 2H), 6.55 (bs, 2H), 7.61 (s, 1H), 7.71 (d, J=8.3 Hz, 1H), 7.98 (bs, 1H), 11.51 (s, 1H).

Provenance & Evidence