3-[(3R,4S)-3-Hydroxytetrahydro-2H-pyran-4-yl]-6-[(6-vinylpyridin-3-yl)methyl]benzo[h]quinazolin-4(3H)-one → 6-[(6-Ethylpyridin-3-yl)methyl]-3-[(3R,4S)-3-hydroxytetrahydro-2H-pyran-4-yl]benzo[h]quinazolin-4(3H)-one

HRID 82448Notes

Reaction equation

HRID 82448 reaction equation
[OH:1][C@@H:2]1[C@@H:7]([N:8]2[C:17](=[O:18])[C:16]3[C:11](=[C:12]4[CH:31]=[CH:30][CH:29]=[CH:28][C:13]4=[C:14]([CH2:19][C:20]4[CH:21]=[N:22][C:23]([CH:26]=[CH2:27])=[CH:24][CH:25]=4)[CH:15]=3)[N:10]=[CH:9]2)[CH2:6][CH2:5][O:4][CH2:3]1>CO.[Pd]>[CH2:26]([C:23]1[N:22]=[CH:21][C:20]([CH2:19][C:14]2[CH:15]=[C:16]3[C:11](=[C:12]4[CH:31]=[CH:30][CH:29]=[CH:28][C:13]=24)[N:10]=[CH:9][N:8]([C@H:7]2[CH2:6][CH2:5][O:4][CH2:3][C@@H:2]2[OH:1])[C:17]3=[O:18])=[CH:25][CH:24]=1)[CH3:27]

Participants

4

Reactant 1

HCID 679702273-[(3R,4S)-3-Hydroxytetrahydro-2H-pyran-4-yl]-6-[(6-vinylpyridin-3-yl)methyl]benzo[h]quinazolin-4(3H)-one

Product 1

HCID 510007856-[(6-Ethylpyridin-3-yl)methyl]-3-[(3R,4S)-3-hydroxytetrahydro-2H-pyran-4-yl]benzo[h]quinazolin-4(3H)-one

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent

Procedure

To a solution of 3-[(3R,4S)-3-Hydroxytetrahydro-2H-pyran-4-yl]-6-[(6-vinylpyridin-3-yl)methyl]benzo[h]quinazolin-4(3H)-one (0.040 g, 0.097 mmol) in 2 mL of methanol was added palladium on carbon (8.0 mg, 0.075 mmol). The mixture was placed under an atmosphere of hydrogen (1 atm) for 15 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 416.1960 for [M+H]+ [Calc'd for C25H26N3O3, [M+H]+=416.1969]: 1H NMR (400 MHz, CDCl3 δ 8.82 (d, J=7.9 Hz, 1H), 8.44 (s, 1H), 8.34 (s, 1H), 7.65 (d, J=7.6 Hz, 1H), 7.60-7.52 (m, 3H), 737 (d, J=7.7 Hz, 1H), 7.04 (d, J=8.0 Hz, 1H), 4.78-4.71 (m, 1H), 4.29-4.25 (m, 3H), 4.23 (s, 2H), 4.06-3.99 (m, 1H), 3.55 (t, J=11.2 Hz, 1H), 3.38-3.31 (m, 1H), 2.83 (q, J=7.4 Hz, 2H), 2.26-2.19 (m, 1H), 1.97-1.94 (m, 1H), 1.24 (t, J=7.4 Hz, 3H).

Workup

  1. filtrationwas then filtered through a pad of Celite, which
  2. washwas washed with MeOH
  3. concentrationThe filtrate was concentrated in vacuo

Sources & evidence

ORD record
ord-80b8e668aff34fb0b70292281d92a5c4
Source dataset
uspto-grants-2014_09
Patent number
US08846702B2

Reaction notes

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