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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 57005Generated: October 28, 2026

Cesium carbonate → 4-({2-[4-(5-Chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4-methoxybutanoyl}amino)benzoic acid

https://huagongshe.com/reaction/57005

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
ReactantEthyl 4-({2-[4-(5-chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4-methoxybutanoyl}amino)benzoateHCID 117622946—
SolventMethanol--water (1/1)HCID 22242641—
Product4-({2-[4-(5-Chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4-methoxybutanoyl}amino)benzoic acidHCID 86297748—

Reaction Steps

1.80 g (3.40 mmol) of ethyl 4-({2-[4-(5-chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4-methoxybutanoyl}amino)benzoate (racemate) in 45 ml of methanol/water (4/1) were reacted with 2.24 g (6.87 mmol) of caesium carbonate according to General Method 4, giving the title compound. Yield: 1.66 g (88% of theory)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434690B2
Source datasetuspto-grants-2016_09
ORD IDord-8f0ab9a8117c4046b3ed3c3f7d22406c
Source noteuspto-grants-2016_09