Ethanol → 6,7-dimethoxy-2-(1-m-tolyl-1,4,6,7-tetrahydro-imidazo[4,5-c]pyridin-5-yl)-3H-quinazolin-4-one

HRID 8724

Reaction equation

[C:1]1([CH3:16])[CH:6]=[CH:5][CH:4]=[C:3]([N:7]2[C:15]3[CH2:14][CH2:13][NH:12][CH2:11][C:10]=3[N:9]=[CH:8]2)[CH:2]=1.Cl[C:18]1[NH:27][C:26](=[O:28])[C:25]2[C:20](=[CH:21][C:22]([O:31][CH3:32])=[C:23]([O:29][CH3:30])[CH:24]=2)[N:19]=1.C(N(CC)CC)C.C(O)C>COC(O)C>[CH3:30][O:29][C:23]1[CH:24]=[C:25]2[C:20](=[CH:21][C:22]=1[O:31][CH3:32])[N:19]=[C:18]([N:12]1[CH2:13][CH2:14][C:15]3[N:7]([C:3]4[CH:2]=[C:1]([CH3:16])[CH:6]=[CH:5][CH:4]=4)[CH:8]=[N:9][C:10]=3[CH2:11]1)[NH:27][C:26]2=[O:28]

Participants

Conditions

Temperature: 100 °C

Procedure

A mixture of 1-m-tolyl-4,5,6,7-tetrahydro-1H-imidazo[4,5-c]pyridine 18a (100 mg, 0.5 mmol), 2-chloro-6,7-dimethoxy-3H-quinazolin-4-one 1b (100 mg, 0.4 mmol), and triethylamine (140 μL, 1.0 mmol) in 10 mL methoxyethanol was heated at 100° C. under nitrogen for 12 hr. The mixture was pumped to constant weight. The resulting residue was slurried with hot ethanol and allowed to reach ambient temperature. Vacuum filtration provided 95 mg of 6,7-dimethoxy-2-(1-m-tolyl-1,4,6,7-tetrahydro-imidazo[4,5-c]pyridin-5-yl)-3H-quinazolin-4-one, 601, [M+H]+=418, as a white solid.

Workup

customto reach ambient temperature
filtrationVacuum filtration

Sources & evidence

ORD record: ord-2c8bf22c88d141f18e9c170291be32b9
Source dataset: uspto-grants-2006_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07091200B2

Linked notes

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