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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 337116Generated: October 30, 2026

1-Bromo-2-Chloroethane → 3-[3-[[1-[2-(2-chloroethoxy)-5-fluorophenyl]cyclopropyl]amino]-2-oxo-1(2H)-pyrazinyl]-N-cyclopropyl-4-methyl-benzamide

https://huagongshe.com/reaction/337116

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Bromo-2-ChloroethaneHCID 7849—
ReactantCesium carbonateHCID 10796—
ReactantN-cyclopropyl-3-[3-[[1-(5-fluoro-2-hydroxyphenyl)cyclopropyl]amino]-2-oxo-1(2H)-pyrazinyl]-4-methyl-benzamideHCID 66689006—
SolventAcetonitrileHCID 6342—
Product3-[3-[[1-[2-(2-chloroethoxy)-5-fluorophenyl]cyclopropyl]amino]-2-oxo-1(2H)-pyrazinyl]-N-cyclopropyl-4-methyl-benzamideHCID 66689178—

Reaction Steps

N-Cyclopropyl-3-[3-[[1-(5-fluoro-2-hydroxyphenyl)cyclopropyl]amino]-2-oxo-1(2H)-pyrazinyl]-4-methyl-benzamide (Example 278d 1.22 g), 1-bromo-2-chloroethane (2.4 mL) and cesium carbonate (9.15 g) were stirred together in acetonitrile (100 mL) at 80° C. under nitrogen for 16 h. The cooled reaction mixture was evaporated to dryness, diluted with water (200 mL) and extracted with dichloromethane (3×100 mL). The combined organics were dried (MgSO4), filtered and evaporated. The residue was triturated with 1:1 iso-hexane:diethyl ether to give the subtitle compound (1.13 g)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08889692B2
Source datasetuspto-grants-2014_11
ORD IDord-4edcb4ffb9314566920a58d018ad9a1f
Source noteuspto-grants-2014_11