Hydrazine hydrate (1:1) → HCID 25121734, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-fluoro-5-(6-{2-[(2-methylpropyl)oxy]phenyl}-2-oxo-1,2-dihydropyridin-4-yl)benzonitrile (50 mg), and hydrazine hydrate (2 mL) in ethanol (10 mL)was heated to 100° C. for 3 h. The reaction mixture was concentrated and the product was purified by preparative HPLC (reverse-phase, acetonitrile/water with 0.01% ammonium acetate) to afford 4-(3-amino-1H-indazol-5-yl)-6-[2-(propyloxy)phenyl]pyridin-2(1H)-one (20 mg). 1H NMR (400 MHz, d4-CD3OD): δ 8.18 (s, 1H), 7.72 (d, 1H), 7.57 (d, 1H), 7.46 (t, 1H), 7.39 (d, 1H), 7.16-7.08 (m, 2H), 6.92 (d, 1H), 6.76 (s, 1H), 3.88 (d, 2H), 2.12-2.05 (m, 1H), 1.00 (d, 6H). MS (EI) for C22H22N4O2: 375 (MH±).

Provenance & Evidence