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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 473616Generated: October 30, 2026

Cesium carbonate → N-(4-(3-chloropyrazin-2-yloxy)phenyl)pyridin-2-amine

https://huagongshe.com/reaction/473616

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant2,3-DichloropyrazineHCID 78575—
Reactant4-(Pyridin-2-ylamino)phenolHCID 21262571—
SolventDimethyl SulfoxideHCID 679—
ProductN-(4-(3-chloropyrazin-2-yloxy)phenyl)pyridin-2-amineHCID 53485989—

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of 4-(pyridin-2-ylamino)phenol (14.551 g, 78.14 mmol) and 2,3-dichloropyrazine (11.64 g, 78.14 mmol) in DMSO was added CESIUM CARBONATE (30.55 g, 93.77 mmol). The resulting mixture was heated to 60° C. overnight. Aqueous workup was carried out with DCM extraction and washing with alternating water and brine solutions. Purification by Biotage (0-2%, then 2% MeOH/DCM), followed by washing with EtOAc, produced clean product as solid. MS (ESI, pos. ion) m/z: 298.8 (M+1). IC50 (uM) 0.475.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08637500B2
Source datasetuspto-grants-2014_01
ORD IDord-0fff887d9f114967acff7406460d3c46
Source noteuspto-grants-2014_01