Methanamine, N-methoxy-, hydrochloride (1:1) → HCID 118005533, compound

Participants

Reaction Conditions

Reaction Steps

(2,4-Dichloro-3-phenylquinolin-6-yl)(1-methyl-1H-imidazol-5-yl) [6-(trifluoromethyl)pyridin-3-yl]methanol (200 mg, 0.378 mmol, Example 66), N,O-dimethylhydroxylamine hydrochloride (376 mg, 3.78 mmol), and dimethylformamide (2 mL) were combined in a reaction tube which was then sealed and heated to 100° C. for 48 hours. Analysis shows desired product, but also the presence of starting material. Additional N,O-dimethylhydroxylamine hydrochloride (190 mg, 0.195 mmol) was added and the contents were heated for an additional 24 hours. The contents were then cooled, transferred to a separatory funnel, diluted with EtOAc and extracted with a saturated, aqueous NH4Cl solution, followed by deionized water (4×). The organic phase was separated, dried over MgSO4, filtered and concentrated under reduced pressure. The crude material was purified via reverse phase chromatography using acetonitrile with ammonium hydroxide in water as eluent to afford the title compound. MS (ESI): mass calcd. for C28H23ClF3N5O2, 553.1; m/z found, 554.2 [M+H]+; 1H NMR (400 MHz, CD3OD) δ ppm 8.79 (d, J=2.1 Hz, 1H), 8.19 (d, J=1.9 Hz, 1H), 8.02 (dd, J=8.2, 1.9 Hz, 1H), 7.96 (d, J=8.8 Hz, 1H), 7.83 (d, J=8.2 Hz, 1H), 7.75-7.68 (m, 2H), 7.48 (t, J=7.4 Hz, 2H), 7.40 (ddd, J=7.4, 3.9, 1.3 Hz, 1H), 7.32-7.24 (m, 2H), 6.35 (s, 1H), 3.48 (s, 3H), 3.07 (s, 3H), 2.77 (s, 3H).

Provenance & Evidence