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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 493005Generated: November 1, 2026

4-[2-(Azetidin-1-yl)ethyl]piperazine-1-carboxylic acid [6-(2-fluoro-4-nitrophenoxy)pyrimidin-4-yl]amide → 4-[2-(Azetidin-1-yl)ethyl]piperazine-1-carboxylic acid [6-(4-amino-2-fluorophenoxy)pyrimidin-4-yl]amide

https://huagongshe.com/reaction/493005

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-[2-(Azetidin-1-yl)ethyl]piperazine-1-carboxylic acid [6-(2-fluoro-4-nitrophenoxy)pyrimidin-4-yl]amideHCID 57677417—
CatalystHCID 178418390HCID 178418390—
SolventMethanolHCID 887—
SolventTetrahydrofuranHCID 8028—
Product4-[2-(Azetidin-1-yl)ethyl]piperazine-1-carboxylic acid [6-(4-amino-2-fluorophenoxy)pyrimidin-4-yl]amideHCID 5767755531.6%

Reaction Steps

4-[2-(Azetidin-1-yl)ethyl]piperazine-1-carboxylic acid [6-(2-fluoro-4-nitrophenoxy)pyrimidin-4-yl]amide (110 mg) was dissolved in tetrahydrofuran (3 ml) and methanol (3 ml), and then 10% palladium carbon (53 mg) was added, followed by stirring under a hydrogen atmosphere for 16.5 hrs. The catalyst was filtered off and washed with methanol. The filtrate and washings were concentrated under reduced pressure to give a residue, which was then purified by silica gel column chromatography (Fuji Silysia NH, heptane: ethyl acetate:ethanol=95:5 to 90:10). Fractions containing the target compound were concentrated to provide a crude product of the titled compound (32.4 mg) as a yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07531532B2
Source datasetuspto-grants-2009_05
ORD IDord-a927403b7fbe47acb35392427002dbfa
Source noteuspto-grants-2009_05