Methanesulfonyl chloride → 2-({6-[(5R)-5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-2-oxo-1,3-oxazolidin-3-yl]hexyl}oxy)ethyl methanesulfonate

HRID 901609Notes

Reaction equation

HRID 901609 reaction equation
[CH3:1][C:2]1([CH3:28])[O:7][C:6]2[CH:8]=[CH:9][C:10]([C@H:12]3[O:16][C:15](=[O:17])[N:14]([CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][O:24][CH2:25][CH2:26][OH:27])[CH2:13]3)=[CH:11][C:5]=2[CH2:4][O:3]1.C(N(C(C)C)CC)(C)C.[CH3:38][S:39](Cl)(=[O:41])=[O:40].C(=O)(O)[O-].[Na+]>ClCCl>[CH3:38][S:39]([O:27][CH2:26][CH2:25][O:24][CH2:23][CH2:22][CH2:21][CH2:20][CH2:19][CH2:18][N:14]1[CH2:13][C@@H:12]([C:10]2[CH:9]=[CH:8][C:6]3[O:7][C:2]([CH3:28])([CH3:1])[O:3][CH2:4][C:5]=3[CH:11]=2)[O:16][C:15]1=[O:17])(=[O:41])=[O:40]

Participants

6

Reactant 4

HCID 31297Methanesulfonyl chlorideHCID 81531DiisopropylethylamineHCID 516892Sodium BicarbonateHCID 468319552-Oxazolidinone, 5-(2,2-diMethyl-4H-1,3-benzodioxin-6-yl)-3-[6-(2-hydroxyethoxy)hexyl]-, (5R)-

Product 1

HCID 468322282-({6-[(5R)-5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-2-oxo-1,3-oxazolidin-3-yl]hexyl}oxy)ethyl methanesulfonate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A solution of (5R)-5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-3-{6-[2-hydroxyethoxy]hexyl}-1,3-oxazolidin-2-one (200 mg) in dichloromethane (14 ml) under nitrogen at 0° was treated with diisopropylethylamine (0.10 ml) followed by methanesulfonyl chloride (0.04 ml). The mixture was stirred at 0° for 0.5 h and sat. sodium bicarbonate solution (30 ml) was then added. The mixture was extracted with dichloromethane (30 ml) and the organic extract dried (Na2SO4). The solvent was evaporated in vacuo to give the title compound (240 mg). LCMS RT=3.22 min, ES+ve 472 (MH)+.

Workup

  1. extractionThe mixture was extracted with dichloromethane (30 ml)
  2. extractionthe organic extract
  3. dry with materialdried (Na2SO4)
  4. customThe solvent was evaporated in vacuo

Sources & evidence

ORD record
ord-d68b7f98076a4e8c8c6fdd8082604ed0
Source dataset
uspto-grants-2008_04
Patent number
US07361787B2

Reaction notes

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