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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1677103Generated: October 31, 2026

Hydrochloric Acid → HCID 57571690, compound

https://huagongshe.com/reaction/1677103

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 66995381HCID 66995381—
SolventMethanolHCID 887—
SolventDichloromethaneHCID 6344—
ProductHCID 57571690HCID 57571690—

Reaction Steps

A solution of 4-(5-phenethylcarbamoyl-pyridin-2-yl)-piperazine-1-carboxylic acid tert-butyl ester (200 mg) in MeOH (5 ml) was cooled to 0° C. and slowly treated with 4N HCl (2.52 ml). The reaction mixture was stirred at r.t. overnight, then diluted with CH2Cl2 and directly purified by column chromatography (Isolute® SPE flash NH2 column, aminopropyl-functionalized silica; gradient: CH2Cl2→CH2Cl2/MeOH 9:1) to give N-benzyl-6-piperazin-1-yl-nicotinamide as off-white solid. MS (ISP): 297.5 ([M+H]+)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08008305B2
Source datasetuspto-grants-2011_08
ORD IDord-3075d74d98194db081d93bdad47c8aa3
Source noteuspto-grants-2011_08