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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 54563Generated: October 27, 2026

Ethyl Acetate → 3-[{2-(1-Tert-butoxycarbonylpiperidin-4-yl)ethyl}carbamoyl]-5-(4-cyanophenyl)-1,2,4-oxadiazole

https://huagongshe.com/reaction/54563

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactanttert-Butyl 4-(2-aminoethyl)piperidine-1-carboxylateHCID 1514258—
Reactant3-Ethoxycarbonyl-5-(4-cyanophenyl)-1,2,4-oxadiazoleHCID 19959148—
SolventDimethylformamideHCID 6228—
Product3-[{2-(1-Tert-butoxycarbonylpiperidin-4-yl)ethyl}carbamoyl]-5-(4-cyanophenyl)-1,2,4-oxadiazoleHCID 19959295—

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 3-ethoxycarbonyl-5-(4-cyanophenyl)-1,2,4-oxadiazole (2.0 g) and 2-(1-tert-butoxycarbonylpiperidin-4-yl)ethylamine in N,N-dimethylformamide (1 ml) was heated at 120° C. for 5 hours. The mixture was dissolved with ethyl acetate, washed with water, brine, dried over magnesium sulfate and evaporated in vacuo. The residue was recrystallized from ethanol to afford 3-[{2-(1-tert-butoxycarbonylpiperidin-4-yl)ethyl}carbamoyl]-5-(4-cyanophenyl)-1,2,4-oxadiazole (2.6 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05622976
Source datasetuspto-grants-1997_04
ORD IDord-1224fa790a994fbf9ceb4726555c59b7
Source noteuspto-grants-1997_04