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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1091420Generated: November 3, 2026

Dimethyl Sulfoxide → 5-Chloro-N-({(5S)-2-oxo-3-[4-(2-oxo-1-piperidinyl)phenyl]-1,3-oxazolidin-5-yl}methyl)-2-thiophenecarboxamide

https://huagongshe.com/reaction/1091420

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethyl SulfoxideHCID 679—
ReactantSodium hydrideHCID 24758—
Reactant5-Chloro-N-[((5S)-3-{4-[(5-chloropentanoyl)amino]phenyl}-2-oxo-1,3-oxazolidin-5-yl)methyl]-2-thiophenecarboxamideHCID 57496674—
SolventDichloromethaneHCID 6344—
Product5-Chloro-N-({(5S)-2-oxo-3-[4-(2-oxo-1-piperidinyl)phenyl]-1,3-oxazolidin-5-yl}methyl)-2-thiophenecarboxamideHCID 57496673—

Reaction Conditions

Temperature75 °C

Reaction Steps

Under inert conditions, 5 ml of DMSO are admixed with 30 mg of NaH (60% in paraffin oil), and the mixture is heated at 75° C. for 30 min, until the evolution of gas has ceased. A solution of 290 mg (0.617 mmol) of 5-chloro-N-[((5S)-3-{4-[(5-chloropentanoyl)amino]phenyl}-2-oxo-1,3-oxazolidin-5-yl)methyl]-2-thiophenecarboxamide (from Example 161) in 5 ml of methylene chloride is then added dropwise, and the mixture is stirred at room temperature overnight. The reaction is terminated and the mixture is poured into 100 ml of water and extracted with ethyl acetate. The evaporated organic phase is chromatographed on an RP-8 column and the product is eluted with acetonitrile/water. This gives 20 mg (7.5% of theory) of the target compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08129378B2
Source datasetuspto-grants-2012_03
ORD IDord-375a3ddb12804b34bab9274d7230b7a7
Source noteuspto-grants-2012_03