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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2382778Generated: November 3, 2026

3-Pyridinecarbonyl chloride, hydrochloride (1:1) → N-(5-chloro[1,2,4]triazolo[1,5-a]pyridin-2-yl)nicotinamide

https://huagongshe.com/reaction/2382778

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Pyridinecarbonyl chloride, hydrochloride (1:1)HCID 88438—
Reactant5-Chloro-[1,2,4]triazolo[1,5-a]pyridin-2-amineHCID 21464413—
ProductN-(5-chloro[1,2,4]triazolo[1,5-a]pyridin-2-yl)nicotinamideHCID 25212516—

Reaction Steps

The title compound was prepared following procedure described for intermediate B1, but starting from 5-chloro[1,2,4]triazolo[1,5-a]pyridin-2-amine ((A4), 14.60 g; 86.60 mmol; 1.0 eq.) and nicotinoyl chloride hydrochloride (18.5 g; 104 mmol; 1.2 eq.) as a greenish solid (20.61 g; 87%). HPLC, Rt: 1.19 min. (purity 99.4%). LC/MS, M+(ESI): 274.3, M+(ESI): 272.3.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08263595B2
Source datasetuspto-grants-2012_09
ORD IDord-d8605f28c67e427ca9974ade58ff1dca
Source noteuspto-grants-2012_09