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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1874137Generated: October 31, 2026

Nicotinic Acid → Tert-butyl 2-(2-(2-(nicotinamido)ethyl)disulfanyl)ethylcarbamate

https://huagongshe.com/reaction/1874137

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNicotinic AcidHCID 938—
Reactant1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 15908—
Reactanttert-butyl N-(2-((2-aminoethyl)disulfanyl)ethyl)carbamateHCID 22245556—
SolventAcetonitrileHCID 6342—
SolventEthyl AcetateHCID 8857—
ProductTert-butyl 2-(2-(2-(nicotinamido)ethyl)disulfanyl)ethylcarbamateHCID 8665179956%

Reaction Steps

Separately, nicotinic acid (246 mg, 2.0 mmol) was taken up in CH3CN (10 mL) along with tert-butyl 2-(2-(2-aminoethyl)disulfanyl)ethylcarbamate (503 mg, 2.0 mmol), EDCI (422 mg, 2.2 mmol). The resulting reaction mixture was stirred at room temperature for 4 h and then diluted with EtOAc. The organic layer was washed with dilute aqueous NaHCO3, brine, dried over Na2SO4, filtered and concentrated under reduced pressure. Purification by silica gel chromatography (CH2Cl2) afforded tert-butyl 2-(2-(2-(nicotinamido)ethyl)disulfanyl)ethylcarbamate (400 mg, 56%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08304551B2
Source datasetuspto-grants-2012_11
ORD IDord-da0ca6a271104e5d802e813adb682eee
Source noteuspto-grants-2012_11