HCID 86675133, compound → HCID 86675132, compound

Participants

Reaction Conditions

Reaction Steps

A solution of (E)-N-(2-(2-(cyclopropanecarbonyl)hydrazinyl)-2-oxoethyl)-4-(3-(3,5-dichlorophenyl)-4,4,4-trifluorobut-1-enyl)-2-methylbenzamide (200 mg, 0.379 mmol) in POCl3 (2.0 mL) was stirred at ambient temperature for 10 min, then the resultant reaction mixture was heated to 50° C. for 1 h. The reaction mixture was quenched with ice water at 0° C. and extracted with ethyl acetate. The combined ethyl acetate layer was washed with saturated NaHCO3 solution and brine solution, dried over anhydrous Na2SO4, and concentrated under reduced pressure. Purification by flash column chromatography (SiO2, 100-200 mesh; eluting with 50% ethyl acetate/pet ether) afforded the title compound as a light brown gummy material (70.0 mg, 36%): 1H NMR (400 MHz, CDCl3) δ 7.43 (m, 2H), 7.27 (m, 2H), 7.23 (m, 2H), 6.58 (d, J=16.0 Hz, 1H), 6.41 (dd, J=16.0, 7.6 Hz, 1H), 4.79 (d, J=5.6 Hz, 2H), 4.14 (m, 1H), 2.48 (s, 3H), 2.18 (m, 1H), 1.16 (m, 4H); ESIMS m/z 509.89 ([M+H]+); IR (thin film) 1666, 1166, 1112, 800 cm−1.

Provenance & Evidence