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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 11687Generated: October 26, 2026

Triethylamine → 5-Chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethylamino}-nicotinic Acid Methyl Ester

https://huagongshe.com/reaction/11687

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantMethyl 2,5-DichloronicotinateHCID 2764318—
Reactant2-amino-1-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-ethanoneHCID 69655764—
SolventAcetonitrileHCID 6342—
Product5-Chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethylamino}-nicotinic Acid Methyl EsterHCID 6965524636.7%

Reaction Steps

To a solution of 2-amino-1-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-ethanone (0.27 g, 0.97 mmol) in acetonitrile (5 mL) was added 2,5-dichloro-nicotinic acid methyl ester (0.20 g, 0.97 mmol) and triethylamine (0.135 mL, 0.97 mmol). The reaction was refluxed for 2 hours. The reaction was concentrated and purified by chromatography on silica gel to give the title compound (0.16 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07098212B2
Source datasetuspto-grants-2006_08
ORD IDord-387ec78d8b004fb4b3229b0d533e7d0f
Source noteuspto-grants-2006_08