6-[(6-chloropyridin-3-yl)methyl]-3-[(3R,4S)-3-hydroxytetrahydro-2H-pyran-4-yl]benzo[h]quinazolin-4(3H)-one → HCID 51000701, compound

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Reaction Steps

To a solution of 6-[(6-chloropyridin-3-yl)methyl]-3-[(3R,4S)-3-hydroxytetrahydro-2H-pyran-4-yl]benzo[h]quinazolin-4(3H)-one (Example 1, 0.050 g, 0.12 mmol) in 1 mL of methanol and 1 mL of dichloromethane was added palladium on carbon (10 mg, 0.094 mmol). The mixture was placed under an atmosphere of hydrogen (1 atm) for 8 h and was then filtered through a pad of Celite, which was washed with MeOH. The filtrate was concentrated in vacuo to provide the title compound that gave a proton NMR spectra consistent with theory and a mass ion (ES+) of 388.1657 for [M+H]+ [Calc'd for C23H22N3O3, [M+H]+=388.1656]: 1H NMR (400 MHz, d6-DMSO) δ 9.96 (d, J=7.5 Hz, 1H), 8.79 (s, 1H), 8.68 (s, 1H), 8.63 (d, J=4.8 Hz, 1H), 8.15-8.02 (m, 2H), 8.02 (s, 1H), 7.77-7.70 (m, 3H), 4.68 (s, 2H), 4.68 (br s, 1H), 4.13-4.00 (m, 1H), 3.98-3.89 (m, 2H), 3.44-3.38 (m, 1H), 3.13-3.07 (m, 2H), 2.22-2.19 (m, 1H), 1.86-1.83 (m, 1H).

Provenance & Evidence