Triethylamine → Methanesulfonic acid (5R)-3-[4-(3,6-dihydro-2H-thiopyran-4-yl)-3-fluorophenyl]-2-oxo-oxazolidin-5-ylmethyl ester

HRID 723808Notes

Reaction equation

[S:1]1[CH2:6][CH:5]=[C:4]([C:7]2[CH:12]=[CH:11][C:10]([N:13]3[CH2:17][C@H:16]([CH2:18][OH:19])[O:15][C:14]3=[O:20])=[CH:9][C:8]=2[F:21])[CH2:3][CH2:2]1.C(N(CC)CC)C.[CH3:29][S:30](Cl)(=[O:32])=[O:31]>ClCCl>[S:1]1[CH2:2][CH:3]=[C:4]([C:7]2[CH:12]=[CH:11][C:10]([N:13]3[CH2:17][C@H:16]([CH2:18][O:19][S:30]([CH3:29])(=[O:32])=[O:31])[O:15][C:14]3=[O:20])=[CH:9][C:8]=2[F:21])[CH2:5][CH2:6]1

Participants

Conditions

Temperature: -20 °C

Procedure

(5R)-3-[4-(3,6-dihydro-2H-thiopyran-4-yl)-3-fluorophenyl]-5-hydroxymethyloxazolidin-2-one (14 g, 45.3 mmol) was dissolved in dichloromethane (300 ml) and triethylamine (8.8 ml, 63.3 mmol) was added. It was cooled to −20° C. and methanesulfonyl chloride (4.22 ml, 54.4 mmol), dissolved in dichloromethane (50 ml), was added dropwise. The reaction mixture was allowed to warm to room temperature and was quenched with potassium phosphate buffer (pH 7). Dichloromethane was removed under vacuum and it was extracted with ethyl acetate, washed with water and dried over magnesium sulfate. The title compound (16.9 g) was precipitated from dichloromethane by addition of hexane.

Workup

additionwas added dropwise
temperatureto warm to room temperature
customwas quenched with potassium phosphate buffer (pH 7)
customDichloromethane was removed under vacuum and it
extractionwas extracted with ethyl acetate
washwashed with water
dry with materialdried over magnesium sulfate
customThe title compound (16.9 g) was precipitated from dichloromethane by addition of hexane

Sources & evidence

ORD record: ord-ab0b6dcec3c44320b58878133e35cee9
Source dataset: uspto-grants-2006_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07141583B2

Reaction notes

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