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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2099320Generated: October 30, 2026

Pyridine → HCID 76607225, compound

https://huagongshe.com/reaction/2099320

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantMonoethyl oxalate monochlorideHCID 22632797—
ReactantN-(2,4-Dichlorobenzyl)-7-[(3RS,5RS)-3,5-dimethylpiperazin-1-yl]-6-fluoro-8-methoxy-1-(2,2,2-trifluoroethyl)-4-oxo-1,4-dihydroquinoline-3-carboxamideHCID 76607220—
SolventDichloromethaneHCID 6344—
SolventEthyl AcetateHCID 8857—
ProductHCID 76607225HCID 76607225—

Reaction Steps

200 mg of the compound from Example 37A are dissolved in 3 ml of dichloromethane and 0.26 ml of pyridine and 71 μl of ethyl oxalate chloride are then added. The mixture is stirred at RT for 3 h. For the work-up, the mixture is diluted with ethyl acetate, and extracted by shaking twice with water, once with a saturated sodium hydrogen carbonate solution and once with a saturated sodium chloride solution. The organic phase is dried over sodium sulfate, concentrated in vacuo, and dried under high vacuum. 220 mg of the title compound are obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07569563B2
Source datasetuspto-grants-2009_08
ORD IDord-77f406cd9c014c2498fa7c3a739e33ee
Source noteuspto-grants-2009_08