Trifluoroacetic acid → N-(4-chloro-3-(1-(4-cyanophenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)-2-fluorobenzyl)pivalamide

Participants

Reaction Steps

The title compound was prepared by following the procedure as described for Example-83 by using tert-butyl 2-(4-cyanophenyl)hydrazinecarboxylate (step-2 of Intermediate 17, 0.060 g, 0.25 mmol), 6-chloro-2-fluoro-3-(pivalamidomethyl)benzoyl isocyanate (Intermediate-51, 0.160 g, 0.51 mmol), DCM (10 mL) and TFA (3 mL) to afford 0.020 g of pure product. 1H NMR (400 MHz, CDCl3): δ 1.20 (s, 9H), 4.45 (d, J=5.9 Hz, 2H), 6.19 (m, 1H), 7.32 (d, J=8.4 Hz, 1H), 7.43 (t, J=7.9 Hz, 1H), 7.73 (d, J=8.8 Hz, 2H), 8.19 (d, J=8.4 Hz, 2H), 10.72 (br s, 1H); MS (m/z): 426.27 (M−H−).

Provenance & Evidence