Water → (3-(4-(1H-Pyrazol-1-yl)benzyl)-4-chloro-2-methoxyquinolin-6-yl)(2,6-dimethylpyridin-3-yl)(1-methyl-1H-1,2,3-triazol-5-yl)methanol

Participants

Reaction Conditions

Reaction Steps

A solution of n-butyllithium in hexanes (1.6 M, 0.73 mL, 1.2 mmol) was added dropwise to a stirring solution of 3-(4-(1H-pyrazol-1-yl)benzyl)-6-bromo-4-chloro-2-methoxyquinoline (500 mg, 1.2 mmol, Intermediate 10) in tetrahydrofuran (10 mL) at −78° C. After 5 minutes, a solution of (2,6-dimethylpyridin-3-yl)(1-methyl-1H-1,2,3-triazol-5-yl)methanone (250 mg, 1.2 mmol, Intermediate 19: step b) in tetrahydrofuran (1.6 mL) was added dropwise. After 5 minutes, the flask was placed into an ice-water bath. After 30 minutes, water (5 mL) was added and the mixture was allowed to warm to 23° C. The biphasic mixture was partitioned between half-saturated aqueous sodium chloride solution (100 mL) and ethyl acetate (100 mL). The layers were separated. The organic layer was dried with sodium sulfate and the dried solution was filtered. The filtrate was concentrated and the residue was purified by RP-HPLC eluting initially with 5% acetonitrile-water (containing 0.05% trifluoroacetic acid), grading to 95% acetonitrile-water (containing 0.05% trifluoroacetic acid) to provide the title compound as a white solid after partitioning the purified material between dichloromethane-saturated aqueous sodium bicarbonate solution, separating the layers, drying the organic layer with sodium sulfate, filtering the dried solution, and concentrating the filtrate to dryness. 1H NMR (600 MHz, CDCl3) δ ppm 8.08 (d, J=2.2 Hz, 1H), 7.85 (d, J=2.5 Hz, 1H), 7.83 (d, J=8.7 Hz, 1H), 7.67 (d, J=1.7 Hz, 1H), 7.59-7.54 (m, 2H), 7.40-7.34 (m, 3H), 6.98-6.91 (m, 3H), 6.45-6.41 (m, 1H), 4.32 (s, 2H), 4.10 (s, 3H), 3.93 (s, 3H), 3.61 (s, 1H), 2.55 (s, 3H), 2.38 (s, 3H); MS (ESI): mass calcd. for C31H28ClN7O2, 565.2. m/z found, 566.1 [M+H]+.

Provenance & Evidence