Dimethyl Sulfide → HCID 86301484, compound

Participants

Reaction Conditions

Reaction Steps

To a cooled solution, −78° C., of 1-(7-((4-fluorobenzyl)oxy)quinolin-3-yl)ethanone (Example 42, 52 mg, 0.176 mmol) in toluene was added (R)-(+)-2-methyl-CBS-oxazaborolidine (97 mg, 0.352 mmol) followed by BH3.DMS (2 M in THF, 0.176 mL, 0.352 mmol). The reaction was warmed to −20° C. and stirred for 3 h followed by treatment with MeOH. The resulting mixture was warmed to ambient temperature and sat. NaHCO3 (aq.) solution was added. The aqueous layer was extracted with EtOAc and the combined organic fractions were washed with brine and concentrated under reduced pressure onto silica. Purification (FCC, SiO2, 0−5%, MeOH/DCM) afforded the title compound as a white solid (29 mg, 56%). 1H NMR (400 MHz, DMSO-d6) δ 8.85 (d, J=2.3 Hz, 1H), 8.20 (d, J=2.0 Hz, 1H), 7.93 (d, J=9.0 Hz, 1H), 7.61 (dd, J=5.5, 8.6 Hz, 2H), 7.51 (d, J=2.3 Hz, 1H), 7.33 (dd, J=2.5, 8.8 Hz, 1H), 7.28 (t, J=9.0 Hz, 2H), 5.44 (d, J=4.3 Hz, 1H), 5.29 (s, 2H), 5.01-4.91 (m, 1H), 1.47 (d, J=6.7 Hz, 3H). [M+H]=298.2.

Provenance & Evidence