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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2086857Generated: October 31, 2026

HCID 15372233, compound → HCID 22724287, compound

https://huagongshe.com/reaction/2086857

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 15372233HCID 15372233—
ReactantHCID 22724440HCID 22724440—
SolventEthanolHCID 702—
ProductHCID 22724287HCID 22724287—

Reaction Steps

A mixture of 2-[3-(2-naphthyl)phenylamino]-3-aminopyridine and 3-(3-pyridyl)pyruvic acid in ethanol was stirred under reflux for 40 hours. After evaporation of the solvent, crude residue was chromatographed on silica gel to give 4-[3-(2-naphthyl)phenyl]-2-(3-pyridylmethyl)-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine. Crystallization from ether and recrystallization with methanol afforded colorless crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06727245B2
Source datasetuspto-grants-2004_04
ORD IDord-c0a89dff8e174501b80f12e9460981ed
Source noteuspto-grants-2004_04