Ethyl 4-fluoro-3-(1,2,3,4-tetrahydroisoquinoline-2-carbonyl)benzoate → Ethyl 4-(4-chloro-3-(dibutylcarbamoyl)-1H-pyrazol-1-yl)-3-(1,2,3,4-tetrahydroisoquinoline-2-carbonyl)benzoate

Participants

Reaction Steps

Following a procedure analogous to that for the synthesis of Intermediate 1E, N,N-dibutyl-4-chloro-1H-pyrazole-3-carboxamide (100 mg, 0.39 mmol) and ethyl 4-fluoro-3-(1,2,3,4-tetrahydroisoquinoline-2-carbonyl)benzoate (Intermediate 1D, 140 mg, 0.43 mmol) were converted to the title compound (156 mg, 71%). 1H NMR (CDCl3, mixture of amide rotamers) δ 8.23-8.16 (m, 1H), 8.12-8.06 (m, 1H), 7.98-7.85 (m, 1H), 7.71-7.58 (m, 1H), 7.26-7.04 (m, 3.5H), 6.78 (d, J=7.5 Hz, 0.5H), 4.99-4.70 (m, 1H), 4.45-4.24 (m, 2.5H), 4.17-4.01 (m, 1H), 3.79-3.73 (m, 0.5H), 3.57-3.15 (m, 5H), 3.11-2.87 (m, 1H), 2.74 (t, J=5.8 Hz, 1H), 1.67-1.06 (m, 10.5H), 1.00-0.86 (m, 3.5H), 0.86-0.73 (m, 3H); MS(ESI+) m/z 565.3 (M+H)+.

Provenance & Evidence