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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 542469Generated: October 31, 2026

Hydrochloric Acid → N-(2-Aminoethyl)-N'-[4-(5-oxo-4,5-dihydropyrazin-2-yl)phenyl]urea

https://huagongshe.com/reaction/542469

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 13853582HCID 13853582—
ProductN-(2-Aminoethyl)-N'-[4-(5-oxo-4,5-dihydropyrazin-2-yl)phenyl]ureaHCID 20208658—

Reaction Steps

5-[4-(3-(2-Acetamidoethyl)ureido)phenyl]-2(1H)-pyrazinone was hydrolysed by heating with hydrochloric acid to form the title compound, as the hydrochloride; δ(D2O/DCl) 3.15, 3.45 (2t, 4H, --CH2CH2 --), 7.81, 8.08 (2d, pyrazinone H's).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04657906
Source datasetuspto-grants-1987_04
ORD IDord-46add1542d354b988628372066aad9ad
Source noteuspto-grants-1987_04