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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 921869Generated: October 30, 2026

Cesium carbonate → 2-((2-Chloro-5-cyano-3-(4-methyl-2-oxopiperazin-1-yl)phenyl)amino)-4-(cyclopropyl(4-methoxybenzyl)amino)imidazo[2,1-f][1,2,4]triazine-7-carbonitrile

https://huagongshe.com/reaction/921869

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant2-Chloro-4-(cyclopropyl(4-methoxybenzyl)amino)imidazo[2,1-f][1,2,4]triazine-7-carbonitrileHCID 86708477—
ReactantHCID 89922410HCID 89922410—
Catalystpalladium(II) acetateHCID 167845—
CatalystFerrocene-1,1'-bis-(diphenylphosphine)HCID 635956—
Solvent1,4-DioxaneHCID 31275—
Product2-((2-Chloro-5-cyano-3-(4-methyl-2-oxopiperazin-1-yl)phenyl)amino)-4-(cyclopropyl(4-methoxybenzyl)amino)imidazo[2,1-f][1,2,4]triazine-7-carbonitrileHCID 8992254297.1%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 2-chloro-4-(cyclopropyl(4-methoxybenzyl)amino)imidazo[2,1-f][1,2,4]triazine-7-carbonitrile (40 mg, 0.113 mmol), 3-amino-4-chloro-5-(4-methyl-2-oxopiperazin-1-yl)benzonitrile (28 mg, 0.106 mmol), palladium(ii) acetate (12 mg, 0.053 mmol), XANTPIIOS (12 mg, 0.021 nmmol), DPPF (12 mg, 0.022 mmol) and cesium carbonate (90 mg, 0.275 mmol) in Dioxane (1.5 mL) was evacuated and back filled with nitrogen three time and was heated at 80° C. for 3 h. LC-MS showed reaction was complete. The reaction mixture was filtered through a pad of Celite, rinsed with EtOAc and the filtrate was concentrated and purification via flash chromatography (0-70% EtOAc in Hexane, 24 g) gave 2-((2-chloro-5-cyano-3-(4-methyl-2-oxopiperazin-1-yl)phenyl)amino)-4-(cyclopropyl(4-methoxybenzyl)amino)imidazo[2,1-f][1,2,4]triazine-7-carbonitrile (60 mg) as a light oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09273057B2
Source datasetuspto-grants-2016_03
ORD IDord-3c524a5e4e2a497ca5f2f766cd85c278
Source noteuspto-grants-2016_03