Dichloromethane → 1-{(4S,5R)-5-[4-(6-Chloromethyl-pyridin-3-yl)-phenyl]-4-fluoromethyl-2,2-dimethyl-oxazolidin-3-yl}-2,2-difluoro-ethanone

HRID 1487569Notes

Reaction equation

[F:1][CH:2]([F:28])[C:3]([N:5]1[C@H:9]([CH2:10][F:11])[C@@H:8]([C:12]2[CH:17]=[CH:16][C:15]([C:18]3[C:19](C)=[N:20][C:21](O)=[CH:22][CH:23]=3)=[CH:14][CH:13]=2)[O:7][C:6]1([CH3:27])[CH3:26])=[O:4].C(N(CC)CC)C.CS(Cl)(=O)=O.[CH2:41]([Cl:43])Cl>>[Cl:43][CH2:41][C:21]1[N:20]=[CH:19][C:18]([C:15]2[CH:16]=[CH:17][C:12]([C@H:8]3[O:7][C:6]([CH3:26])([CH3:27])[N:5]([C:3](=[O:4])[CH:2]([F:28])[F:1])[C@@H:9]3[CH2:10][F:11])=[CH:13][CH:14]=2)=[CH:23][CH:22]=1

Participants

Reactant 4

HCID 6344Dichloromethane

HCID 8471Triethylamine

HCID 31297Methanesulfonyl chloride

HCID 1784334402,2-Difluoro-1-{(4S,5R)-4-fluoromethyl-5-[4-(6-hydroxy-methyl-pyridin-3-yl)-phenyl]-2,2-dimethyl-oxazolidin-3-yl}-ethanone

Product 1

HCID 866955331-{(4S,5R)-5-[4-(6-Chloromethyl-pyridin-3-yl)-phenyl]-4-fluoromethyl-2,2-dimethyl-oxazolidin-3-yl}-2,2-difluoro-ethanone

Procedure

A stirred solution of 2,2-Difluoro-1-{(4S,5R)-4-fluoromethyl-5-[4-(6-hydroxy-methyl-pyridin-3-yl)-phenyl]-2,2-dimethyl-oxazolidin-3-yl}-ethanone (1660 mg, 4.2 mmol) and triethylamine (0.88 ml, 6.31 mmol) in CH2Cl2 (30 ml) is treated with methanesulfonyl chloride (0.49 ml, 6.31 mmol) and stirred at ambient temperature for 16 hours. The reaction mixture is concentrated to dryness to afford the title compound as a red oil (1.53 g): 1H NMR (400 MHz, CDCl3) 1.60-1.77 (m, 6H), 4.53-4.84 (m, 5H), 5.25-5.31 (m, 1H), 6.12 (t, 1H), 7.58 (d, 2H), 7.65 (d, 2H), 7.68 (d, 1H), 8.03-8.07 (m, 1H), 8.86-8.90 (m, 1H). m/z M+H 413.

Workup

concentrationThe reaction mixture is concentrated to dryness

Sources & evidence

ORD record: ord-42cb63ddce12436589387f81768edc9e
Source dataset: uspto-grants-2016_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09428528B2

Reaction notes

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