HCID 86675176, compound → HCID 86675175, compound

Participants

Reaction Steps

A solution of (E)-ethyl-2-(6-(3-(3,5-dichloro-4-fluorophenyl)-4,4,4-trifluorobut-1-enyl)-1-oxophthalazin-2(1H)-yl)acetate (0.04 g, 0.07 mmol) in HCl (0.5 mL) and acetic acid (0.5 mL) was heated to 100° C. for 3 h. The solvent was removed under reduced pressure and the residue diluted with water. The aqueous layer was extracted with ethyl acetate and the separated ethyl acetate layer dried over anhydrous Na2SO4 and concentrated under reduced pressure to afford the crude compound. The crude compound was triturated with diethyl ether-pentane mixture to afford the title compound as a brown solid (0.03 g): 1H NMR (400 MHz, DMSO-d6) δ 13.0 (br s, 1H), 8.43 (m, 1H), 8.23 (d, J=8.1 Hz, 1H), 8.14 (m, 2H), 7.91 (m, 2H), 7.16 (dd, J=16.0, 8.0 Hz, 1H), 6.99 (d, J=16.0 Hz, 1H), 4.96 (m, 3H); ESIMS m/z 473.0 ([M−H]−); IR (thin film) 1629, 1168, 817 cm−1.

Provenance & Evidence