Hydrochloric Acid → HCID 86696583, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 1-cyclopropyl-8-(4-hydroxy-methyl-phenyl)-9-methyl-4-oxo-4H-quinolizine-3-carboxylic acid ethyl ester (60 mg, 0.159 mmol) in THF (6 mL) and water (2 mL) was treated with LiOH (27 mg, 0.642 mmol). The reaction was heated to 60° C. overnight and acidified with 1N HCl to pH 4. The precipitate was dissolved with ethyl acetate (50 mL) and washed with brine (2×20 mL). The organic phase was separated, dried, and concentrated. The precipitate was filtered to afford the title compound EXAMPLE 48 as yellow solid (21 mg, 38%). ESI-MS m/z: 350 (M+H)+; 1H NMR (300 MHz, DMSO-d6) δ ppm: 9.38 (d, J=7.2 Hz, 1H), 8.30 (s, 1H), 7.62 (d, J=7.5 Hz, 1H), 7.59-7.56 (m, 4H), 5.41 (t, 1H), 4.64 (d, J=5.7 Hz, 2H), 2.91 (s, 3H), 2.54-2.51 (m, 1H), 1.13-1.10 (m, 2H), 0.83-0.81 (m, 2H).

Provenance & Evidence