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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1429137Generated: October 31, 2026

Citric Acid → HCID 75277250, compound

https://huagongshe.com/reaction/1429137

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 68591633HCID 68591633—
SolventDichloromethaneHCID 6344—
ProductHCID 75277250HCID 75277250—

Reaction Steps

Compound 3j (120 mg, 0.233 mmol) was dissolved in DCM (10 ml). EDAC (54 mg, 0.28 mmol) was added and the reaction mixture was stirred at RT for 2.5 h. Cyclo-propanesulfonic acid amide (31 mg, 0.256 mmol) and DBU (73 μl, 0.489 mmol) were added and the reaction mixture was stirred at RT over night. 5% Citric acid was added and the organic layer was washed with brine, dried, filtered and evaporated. Purifica-tion by preparative HPLC yielded the pure title compound of (65 mg, 45%), MS (M+H)+618.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08937080B2
Source datasetuspto-grants-2015_01
ORD IDord-f799d9a0ac40417db0c1c8c2dc364844
Source noteuspto-grants-2015_01