4-Vinylbenzoic acid → HCID 178524342, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-((3,4-dichlorophenyl)amino)-8-bromo-6-nitroquinazolin-4-ol (50 mg) in N,N-dimethylformamide (2 mL) was added 4-vinylbenzoic acid (35 mg), followed by palladium acetate (2.6 mg), tri-o-tolylphosphine (7.1 mg) and N,N-diisopropylethylamine (0.24 mL). The reaction mixture was heated at 120° C. for 24 h, then was cooled to room temperature and concentrated in vacuo. The residue was triturated with 50% (v/v) methanol/dichloromethane (2 mL). The resulting solid was isolated by filtration, washed sequentially with diethyl ether and water, then was dried in vacuo to give the title compound (36 mg). 1H NMR (300 MHz, DMSO-d6/CF3CO2H) δ8.75 (d, J=2.7 Hz, 1H), 8.60 (d, J=2.7 Hz, 1H), 8.43 (d, J=4.5 Hz, 1H), 7.99-7.88 (m, 3H), 7.74 (d, J=8.4 Hz, 1H), 7.67-7.51 (m, 2H), 7.38 (dd, J=8.7, 2.6 Hz, 1H). HPLC Method B 8.26 min. MS (APCI−) m/z 496, 498.

Provenance & Evidence