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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 277072Generated: October 23, 2026

5-Ethyl-2-furaldehyde → 7-Bromo-2-(5-ethyl-furan-2-yl)-[1,2,4]triazolo[1,5-a]pyridin-5-ylamine

https://huagongshe.com/en/reaction/277072

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Ethyl-2-furaldehydeHCID 89989—
Reactant4-Bromo-2,6-diaminopyridineHCID 11435393—
ReactantO-(2,4,6-Trimethylbenzenesulfonyl)hydroxylamineHCID 11830845—
Product7-Bromo-2-(5-ethyl-furan-2-yl)-[1,2,4]triazolo[1,5-a]pyridin-5-ylamineHCID 18313697—

Reaction Steps

The title compound, MS m/e (%): 309 (M++2, 100), was prepared in accordance with the general method of example 63 from 4-bromo-pyridine-2,6-diamine, O-mesitylene-sulfonylhydroxylamine, and 5-ethyl-2-furaldehyde. The purification was performed with reversed phase HPLC eluting with an acetonitrile/water gradient.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06355653B1
Source datasetuspto-grants-2002_03
ORD IDord-001530a074d2446a8ab529134afa798a
Source noteuspto-grants-2002_03