Benzyl 4-(3-(butyl(3,4-dichlorobenzyl)carbamoyl)-4-chloro-5-methyl-1H-pyrazol-1-yl)-3-(1,2,3,4-tetrahydroisoquinoline-2-carbonyl)benzoate → 4-(3-(Butyl(3,4-dichlorobenzyl)carbamoyl)-4-chloro-5-methyl-1H-pyrazol-1-yl)-3-(1,2,3,4-tetrahydroisoquinoline-2-carbonyl)benzoic acid

Participants

Reaction Steps

Following a procedure analogous to that for the synthesis of Intermediate 164B, benzyl 4-(3-(butyl(3,4-dichlorobenzyl)carbamoyl)-4-chloro-5-methyl-1H-pyrazol-1-yl)-3-(1,2,3,4-tetrahydroisoquinoline-2-carbonyl)benzoate (2.20 g, 2.96 mmol) was converted to the title compound (1.90 g, 98%). 1H NMR (DMSO-d6, mixture of amide rotamers) δ 8.15 (d, J=8.4 Hz, 1H), 8.05 (d, J=2.2 Hz, 0.5H), 8.01-7.96 (m, 0.5H), 7.88-7.69 (m, 1H), 7.60-7.48 (m, 1.5H), 7.46-7.38 (m, 0.5H), 7.35-7.26 (m, 1H), 7.24-6.94 (m, 3H), 6.85 (d, J=7.5 Hz, 0.5H), 6.45-6.31 (m, 0.5H), 5.13 (br s, 0.5H), 4.85-4.15 (m, 4H), 3.74-3.36 (m, 2H), 3.23-2.92 (m, 1.5H), 2.82-2.60 (m, 2H), 2.31-2.11 (m, 3H), 1.45-1.08 (m, 3H), 1.05-0.90 (m, 1H), 0.82 (quin, J=7.2 Hz, 2H), 0.71-0.54 (m, 1H); MS (ESI+) m/z 655.1 (M+H)+.

Provenance & Evidence