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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1443483Generated: October 31, 2026

Citric Acid → HCID 73436957, compound

https://huagongshe.com/reaction/1443483

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
Reactant1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 15908—
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
ReactantCyclopropanesulfonamideHCID 15765418—
ReactantHCID 68408720HCID 68408720—
SolventDichloromethaneHCID 6344—
ProductHCID 73436957HCID 7343695736%

Reaction Steps

The acid (130) (70 mg, 0.111 mmol) was dissolved in DCM (2 ml). EDAC (26 mg, 0.133 mmol) was added and the mixture was stirred at room temperature over night. Cyclopropanesulfonic acid amide (15 mg, 0.122 mmol) and DBU (35 μl, 0.233 mmol) was added and the reaction mixture was stirred at room temperature over night. 5% Citric acid was added to the reaction mixture, and the mixture was extracted with brine, dried over Na2SO4 and purified by column chromatography (DCM/MeOH 20:1) to give the title compound (29 mg, 36%). MS (M+H)=733

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07659245B2
Source datasetuspto-grants-2010_02
ORD IDord-882043701a454a3a9ff1d91f3b7a26c0
Source noteuspto-grants-2010_02