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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1444124Generated: October 27, 2026

Potassium Carbonate → 4-[2-Chloro-6-(4-fluoro-phenyl)-pyrimidin-4-yl]-3-(R)-methyl-piperazine-1-carboxylic acid tert-butyl ester

https://huagongshe.com/reaction/1444124

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant(R)-1-Boc-3-methylpiperazineHCID 2756811—
Reactant2,4-Dichloro-6-(4-fluorophenyl)pyrimidineHCID 11637322—
SolventWaterHCID 962—
SolventDimethylacetamideHCID 31374—
Product4-[2-Chloro-6-(4-fluoro-phenyl)-pyrimidin-4-yl]-3-(R)-methyl-piperazine-1-carboxylic acid tert-butyl esterHCID 59168333—

Reaction Steps

Heat a mixture of 2,4-dichloro-6-(4-fluoro-phenyl)-pyrimidine (2.8 g, 11.52 mmol), 3-(R)-methyl-piperazine-1-carboxylic acid tert-butyl ester (2.42 g, 12.1 mmol), and K2CO3 (3.2 g, 23.0 mmol) in DMA at 60° C. for 16 h. Dilute with water, extract with EtOAc, and wash with brine. Dry the organic layer (Na2SO4) and concentrate under reduced pressure. Purify the residue by flash column eluting with EtOAc-Hexanes (1:4) to afford the title compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07662830B2
Source datasetuspto-grants-2010_02
ORD IDord-af63d95531684ffba9dafdec963af964
Source noteuspto-grants-2010_02