Trifluoroacetic acid → methyl 4-(3-(2-chloro-6-methylphenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)-2-methoxybenzoate

Participants

Reaction Steps

The title compound was prepared according to the procedure described in step-2 of Intermediate-9 by using tert-butyl 2-((2-chloro-6-methylbenzoyl)carbamoyl)-2-(3-methoxy-4-(methoxycarbonyl)phenyl)hydrazinecarboxylate (2.0 g), TFA (5 mL) and DCM (30 mL) to afford 0.700 g of the desired product. 1H NMR (300 MHz, DMSO d6): δ 2.31 (s, 3H), 3.78 (s, 3H), 3.84 (s, 3H), 7.40 (s, 1H), 7.49 (s, 2H), 7.64 (d, J=8.4 Hz, 1H), 7.75 (s, 1H), 7.81 (d, J=8.7 Hz, 1H), 12.54 (s, 1H); MS (m/z): 373.95 (M+H)+.

Provenance & Evidence