Dimethyl Sulfide → HCID 86301484, compound

HRID 513940Notes

Reaction equation

[F:1][C:2]1[CH:22]=[CH:21][C:5]([CH2:6][O:7][C:8]2[CH:17]=[C:16]3[C:11]([CH:12]=[C:13]([C:18](=[O:20])[CH3:19])[CH:14]=[N:15]3)=[CH:10][CH:9]=2)=[CH:4][CH:3]=1.B1(C)OC(C2C=CC=CC=2)(C2C=CC=CC=2)[C@@H]2N1CCC2.CSC.C([O-])(O)=O.[Na+]>C1(C)C=CC=CC=1.CO>[F:1][C:2]1[CH:22]=[CH:21][C:5]([CH2:6][O:7][C:8]2[CH:17]=[C:16]3[C:11]([CH:12]=[C:13]([C@H:18]([OH:20])[CH3:19])[CH:14]=[N:15]3)=[CH:10][CH:9]=2)=[CH:4][CH:3]=1

Participants

Conditions

Temperature: -20 °C

Procedure

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.

Workup

temperatureThe resulting mixture was warmed to ambient temperature
extractionThe aqueous layer was extracted with EtOAc
washthe combined organic fractions were washed with brine
concentrationconcentrated under reduced pressure onto silica
customPurification (FCC, SiO2, 0-5%, MeOH/DCM)

Sources & evidence

ORD record: ord-93fffb15a1c3448f8f1a13c698cc14d2
Source dataset: uspto-grants-2015_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09102674B2

Reaction notes

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