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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1623336Generated: November 1, 2026

1,4-Dioxane → 5-(5-chloro-2-fluoropyridin-4-yl)-3-((tetrahydro-2H-pyran-4-yl)methyl)aminopyrazine-2-carboxamide

https://huagongshe.com/reaction/1623336

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-DioxaneHCID 31275—
Reactant3-chloro-6-(5-chloro-2-fluoropyridin-4-yl)-N-((tetrahydro-2H-pyran-4-yl)methyl)pyrazin-2-amineHCID 86650628—
ReactantHCID 178418546HCID 178418546—
CatalystFerrocene-1,1'-bis-(diphenylphosphine)HCID 635956—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
Product5-(5-chloro-2-fluoropyridin-4-yl)-3-((tetrahydro-2H-pyran-4-yl)methyl)aminopyrazine-2-carboxamideHCID 66937051—

Reaction Conditions

Temperature100 °C

Reaction Steps

3-chloro-6-(5-chloro-2-fluoropyridin-4-yl)-N-((tetrahydro-2H-pyran-4-yl)methyl)pyrazin-2-amine (0.0342 g, 0.096 mmol), CuCN (0.034 g, 0.383 mmol), and dppf (0.085 g, 0.153 mmol) were dissolved in dioxane (1.5 ml). The solution was then degassed by sparging with argon for 5 min. It was then treated with Pd2(dba)3 (0.035 g, 0.038 mmol). The reaction mixture was then heated at 100° C. for 5 hr. The reaction mixture was filtered through a pad of Celite then it was concentrated in vacuo to give 0.110 g of 5-(5-chloro-2-fluoropyridin-4-yl)-3-((tetrahydro-2H-pyran-4-yl)methyl)aminopyrazine-2-carboxamide. LCMS (m/z): 366 (MH+), retention time=0.89 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08778951B2
Source datasetuspto-grants-2014_07
ORD IDord-437fd7c51c664002851a9771d2cfcb75
Source noteuspto-grants-2014_07