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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2100546Generated: October 30, 2026

Diisopropylethylamine → 2-chloro-N-[2-[2-(2,5-difluorophenyl)ethoxy]ethanimidoyl]-5-ethylpyridine-3-carboxamide

https://huagongshe.com/reaction/2100546

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantO-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 2733207—
Reactant2-Chloro-5-ethyl-nicotinic acidHCID 20078680—
Reactant2-[2-(2,5-Difluoro-phenyl)-ethoxy]-acetamidine hydrochlorideHCID 67099036—
Product2-chloro-N-[2-[2-(2,5-difluorophenyl)ethoxy]ethanimidoyl]-5-ethylpyridine-3-carboxamideHCID 140520072—

Reaction Steps

In analogy to the procedure described in example 78.3, 2-chloro-5-ethyl-nicotinic acid was reacted with 2-[2-(2,5-difluoro-phenyl)-ethoxy]-acetamidine hydrochloride (example 78.2) in the presence of TBTU and DIPEA to give 2-chloro-N-{2-[2-(2,5-difluoro-phenyl)-ethoxy]-1-imino-ethyl}-5-ethyl-nicotinamide as yellow oil. MS: m/e=382.3 [M+H+].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07572801B2
Source datasetuspto-grants-2009_08
ORD IDord-3560b2db93aa408a8b217b4727ca259b
Source noteuspto-grants-2009_08