Acetic Acid → N-(3-Trifluoromethyl-4-benzyloxyphenyl)-6-[5-({[2-(methanesulphonyl)ethyl]amino}methyl)-4-furyl]-4-quinazolinamine

Participants

Reaction Steps

The mixture of 5-(4-(4-benzyloxy-3-trifluoromethylphenylamino)-quinazolin-6-yl)-furan-2-carbaldehyde (211 mg, 0.40 mmol), 2-methanesulphonyl-ethylamine (99 mg, 2.0 mmol), acetic acid (0.5 ml) in dichloromethane (15 ml) was stirred at room temperature for 1.5 hours then was heated to reflux for 1 hour. The mixture was cooled to 0° C. with ice bath. Sodium cyanoborohydride (50 mg, 0.8 mmol) was added at 0° C. The reaction mixture then was stirred at room temperature for 1 hour. Diluted with ethyl acetate (50 ml), then quenched with saturated sodium bicarbonate solution slowly. Extracted with ethyl acetate and the combined organic extracts were washed with brine, dried over MgSO4 and concentrated in vacuo. Purification of the resulting residue was accomplished using flash chromatography on silica gel with 2% methanol in ethyl acetate which afforded a yellow solid (0.10 g, 43% yield). H1 NMR (400 MHz, DMSO). δ10.0 (s, 1H), 8.7 (s, 1H), 8.5 (s,1H), 8.1 (d, 1H), 8.1 (s, 2H), 7.8 (d, 1H), 7.4 (m, 5H), 7.3 (m,1H), 7.0 (d, 1H), 6.5 (d,1H), 5.3 (s,2H), 3.8 (s,2H), 3.2 (m, 2H), 3.0 (s, 3H), 2.9 (m, 2H). ESI-MS m/z 597 (M+H)+.

Provenance & Evidence