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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 57961Generated: November 4, 2026

Tricyclohexylphosphine → 6-[1-(6-fluoro-2-pyridyl)pyrazolo[4,3-c]pyridin-6-yl]-N-[(4-methoxyphenyl)methyl]pyrazin-2-amine

https://huagongshe.com/reaction/57961

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTricyclohexylphosphineHCID 75806—
Reactant6-bromo-N-[(4-methoxyphenyl)methyl]pyrazin-2-amineHCID 86707142—
ReactantTributyl-[1-(6-fluoro-2-pyridyl)pyrazolo[4,3-c]pyridin-6-yl]stannaneHCID 86707144—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
SolventDimethylacetamideHCID 31374—
Product6-[1-(6-fluoro-2-pyridyl)pyrazolo[4,3-c]pyridin-6-yl]-N-[(4-methoxyphenyl)methyl]pyrazin-2-amineHCID 8670714374.5%

Reaction Conditions

Temperature150 °C

Reaction Steps

A mixture of 6-bromo-N-[(4-methoxyphenyl)methyl]pyrazin-2-amine (0.9932 mmol; 768.8 mg), tributyl-[1-(6-fluoro-2-pyridyl)pyrazolo[4,3-c]pyridin-6-yl]stannane (2.173 mmol; 1093 mg), tricyclohexylphosphine (0.1192 mmol; 33.42 mg) and Tris(dibenzylideneacetone)dipalladium (0) (0.04966 mmol; 45.47 mg) in N,N-Dimethylacetamide (15 mL) was purged with Argon for 1 min. The reaction mixture was sealed and heated at 150° C. under microwave for 45 min. The mixture was partitioned between EtOAc and water. The organic layer was concentrated and the residue was purified on silica eluted with 0 to 100% EtOAc in Heptane to afford 6-[1-(6-fluoro-2-pyridyl)pyrazolo[4,3-c]pyridin-6-yl]-N-[(4-methoxyphenyl)methyl]pyrazin-2-amine (316.3 mg, 48%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434725B2
Source datasetuspto-grants-2016_09
ORD IDord-85d3b572cb67465e9add09c7c5801774
Source noteuspto-grants-2016_09