Ethanamine, 2,2,2-trifluoro- → HCID 86722545, compound

Participants

Reaction Steps

To a stirred solution of (E)-2-(6-(3-(3,5-dichloro-4-fluorophenyl)-4,4,4-trifluorobut-1-enyl)-1-oxophthalazin-2(1H)-yl)acetic acid (0.15 g, 0.31 mmol) in DCM (20.0 ml) was added 2,2,2,-trifluoroethanamine (0.03 g, 0.31 mmol), PyBOP (0.17 g, 0.34 mmol) and DIEA (0.15 ml, 0.93 mmol) at RT, and the reaction was stirred for 18 h. The reaction mixture was diluted with DCM and washed with 3N HCl (2×20 mL), NaHCO3 (2×20 mL) and brine solution (2×). The separated DCM layer was dried over anhydrous Na2SO4 and concentrated under reduced pressure to afford the crude compound. The crude compound was purified by column chromatography (SiO2, 100-200 mesh; 20-25% ethyl acetate/petroleum ether) to afford the title compound as a brown solid (0.11 g): mp 172-175° C.; 1H NMR (400 MHz, CDCl3) δ 8.83 (t, J=6.6 Hz, 1H), 8.42 (t, J=14.7 Hz, 1H), 8.22 (d, J=8.1 Hz, 1H), 8.13 (t, J=6.3 Hz, 1H), 7.98-7.86 (m, 2H), 7.16-7.07 (m, 1H), 7.01-6.93 (m, 1H), 4.96-4.81 (m, 3H), 4.00-3.88 (m, 2H); ESIMS m/z 554.0 ([M−H]−).

Provenance & Evidence