Acetic Acid → HCID 71014126, compound

Participants

Reaction Steps

To a solution of 8-fluoro-4-formyl-N-[(1S,2S)-2-hydroxycyclohexyl]quinoline-2-carboxamide (C9) (0.080 g, 0.25 mmol) in DCE (3 mL) was 4-chloro-2-(4-fluoropiperidin-4-yl)pyridine dihydrochloride (C5) (0.080 g, 0.28 mmol) and triethylamine (6 drops). After 5 min, acetic acid (0.043 mL, 0.76 mmol) and MP-cyanoborohydride were added. The mixture was irradiated in a microwave reactor at 100° C. for 20 min, then diluted with CH2Cl2 and was washed with brine. The organic solution was dried over sodium sulfate, filtered, and concentrated in vacuo. The resultant residue was purified via silica gel chromatography eluting with 0-5% methanol in dichloromethane to provide the title compound (Example C) as a white solid that gave a proton NMR spectra consistent with theory and a mass ion (ES+) of 515.0 for M+H+. 1H NMR (400 MHz, CDCl3) δ 8.44 (d, J=5.2 Hz, 1H), 8.38 (s, 1H), 8.29 (d, J=7.8 Hz, 1H), 8.17 (d, J=8.5 Hz, 1H), 7.60-7.55 (m, 2H), 7.47-7.42 (m, 1H), 7.22-7.20 (m, 1H), 4.03 (s, 2H), 3.94-3.86 (m, 1H), 3.63-3.56 (m, 1H), 3.42 (br s, 1H), 2.86-2.83 (m, 2H), 2.62-2.56 (m, 2H), 2.47-2.30 (m, 2H), 2.17-2.11 (m, 2H), 1.89-1.78 (m, 4H), 1.56-1.31 (m, 4H).

Provenance & Evidence