Diisopropylamine → N-(2-Diethylaminoethyl)-2-[2-(2-(2,3-difluorophenyl)ethyl)-4-oxo-4H-quinolin-1-yl]-N-(4'-trifluoromethylbiphenyl-4-ylmethyl)acetamide

Participants

Reaction Steps

A mixture of 2-[2-(2-(2,3-difluorophenyl)ethyl)-4-oxo-4H-quinolin-1-yl]-acetic acid (Int. E2) (0.26 g, 1 equiv), N,N-diethyl-N′-(4′-trifluoromethylbiphenyl-4-ylmethyl)ethane-1,2-diamine (Int. A2) (0.265 g, 1 equiv), HATU (0.28 g, 1.2 equiv) and diisopropylamine (0.32 ml, 2.4 equiv) in dichloromethane (15 ml) was stirred at room temperature overnight, then washed with aqueous ammonium chloride and aqueous sodium bicarbonate. The organic layer was dried and evaporated, and the product purified by column chromatography (silica, 2% [2M ammonia in methanol] in dichloromethane). Product fractions were evaporated to an off-white foam (0.201 g). Trituration with ether gave the title compound as a white solid (0.476 g). 1H-NMR (d6-DMSO, ca 2:1 rotamer mixture) δ 0.93 (6H, 2×t), 2.38–2.80 (4H, m), 2.90–3.05 (4H, m), 3.45 (2H, m), 4.30–4.95 (4H, m), 5.23–5.58 (2H, m), 6.06 (1H, 2×s), 7.14–7.38 (7H, m), 7.50–7.95 (7H, m), 8.16 (1H, m); MS (APCI+) found (M+1)=676. C39H38F5N3O2 requires 675.

Provenance & Evidence