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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1428516Generated: October 30, 2026

Ethyl orthopropionate → 3-Ethyl-7-(4-phenyl-1-piperidinyl)-1,2,4-triazolo[4,3-a]pyridine-8-carbonitrile

https://huagongshe.com/reaction/1428516

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl orthopropionateHCID 66995—
Reactant[3-Cyano-4-(4-phenylpiperidinyl)pyridin-2-yl]-hydrazineHCID 66787505—
SolventO-XyleneHCID 7237—
Product3-Ethyl-7-(4-phenyl-1-piperidinyl)-1,2,4-triazolo[4,3-a]pyridine-8-carbonitrileHCID 57459475—

Reaction Steps

A solution of D7 (0.05 g, 0.17 mmol) and triethylorthopropionate (0.462 ml, 2.556 mmol) in xylene (1 ml) was heated in a sealed tube at 180° C. for 2 h. After cooling, the resulting mixture was concentrated in vacuo. The residue thus obtained was triturated with Et2O to yield final compound E10 (0.042 g, 74%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08937060B2
Source datasetuspto-grants-2015_01
ORD IDord-7385ac7c29fd430b91b54f7fb3a57802
Source noteuspto-grants-2015_01