Water → N-[3-(4'-azidomethyl-2-fluoro-biphenyl-4-yl)-2-oxo-oxazolidin-5-ylmethyl]-acetamide

HRID 645949Notes

Reaction equation

HRID 645949 reaction equation
[C:1]([NH:4][CH2:5][CH:6]1[O:10][C:9](=[O:11])[N:8]([C:12]2[CH:17]=[CH:16][C:15]([C:18]3[CH:23]=[CH:22][C:21]([CH2:24]OS(C)(=O)=O)=[CH:20][CH:19]=3)=[C:14]([F:30])[CH:13]=2)[CH2:7]1)(=[O:3])[CH3:2].[N-:31]=[N+:32]=[N-:33].[Na+].O>CN(C)C=O>[N:31]([CH2:24][C:21]1[CH:20]=[CH:19][C:18]([C:15]2[CH:16]=[CH:17][C:12]([N:8]3[CH2:7][CH:6]([CH2:5][NH:4][C:1](=[O:3])[CH3:2])[O:10][C:9]3=[O:11])=[CH:13][C:14]=2[F:30])=[CH:23][CH:22]=1)=[N+:32]=[N-:33]

Participants

5

Reactant 3

HCID 962WaterHCID 33557Sodium AzideHCID 86596639Methanesulfonic acid 4'-[5-(acetylamino-methyl)-2-oxo-oxazolidin-3-yl]-2'-fluoro-biphenyl-4-ylmethyl ester

Product 1

HCID 22274111N-[3-(4'-azidomethyl-2-fluoro-biphenyl-4-yl)-2-oxo-oxazolidin-5-ylmethyl]-acetamideYield 88%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
75 °C

Procedure

A solution of 52 (9.27 g, 21.26 mmol) in anhydrous N,N-dimethylformamide (DMF, 50 mL) was treated with sodium azide (NaN3, 5.53 g, 85.04 mmol, 4.0 equiv) at 25° C., and the resulting reaction mixture was warmed to 70-80° C. for 4 h. When TLC and HPLC showed the reaction was complete, the reaction mixture was cooled to room temperature before being treated with H2O (150 mL). The resulting mixture was stirred at room temperature for 10 min before being cooled to 0-5° C. for 1 h. The solid precipitates were collected by filtration, washed with H2O (2×100 mL) and 20% EtOAc/hexane (2×50 mL), and dried in vacuo. The crude desired N-[3-(4′-azidomethyl-2-fluoro-biphenyl-4-yl)-2-oxo-oxazolidin-5-ylmethyl]-acetamide 53 (7.16 g, 88% yield) was obtained as off-white solids. The material was found to be essentially pure by TLC and HPLC and was directly used in the subsequent reaction without further purification. LCMS (ESI) m/e 384 (M+H)+.

Workup

  1. customthe resulting reaction mixture
  2. temperaturethe reaction mixture was cooled to room temperature
  3. temperaturebefore being cooled to 0-5° C. for 1 h
  4. customThe solid precipitates
  5. filtrationwere collected by filtration
  6. washwashed with H2O (2×100 mL) and 20% EtOAc/hexane (2×50 mL)
  7. customdried in vacuo

Sources & evidence

ORD record
ord-9b2e18483e0540f5966a0e274efd81c8
Source dataset
uspto-grants-2010_04
Patent number
US07705026B2

Reaction notes

Loading…