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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1529233Generated: November 2, 2026

1-Methylpiperazine → {4-[2-Ethyl-3-(6-methylamino-pyridin-3-ylethynyl)-pyridin-4-yl]-2-fluoro-phenyl}-(4-methyl-piperazin-1-yl)-methanone

https://huagongshe.com/reaction/1529233

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-MethylpiperazineHCID 53167—
ReactantDiisopropylethylamineHCID 81531—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant4-[2-Ethyl-3-(6-methylamino-pyridin-3-ylethynyl)-pyridin-4-yl]-2-fluoro-benzoic acidHCID 66770838—
SolventDimethylformamideHCID 6228—
SolventAcetonitrile--water (1/1)HCID 18373917—
Product{4-[2-Ethyl-3-(6-methylamino-pyridin-3-ylethynyl)-pyridin-4-yl]-2-fluoro-phenyl}-(4-methyl-piperazin-1-yl)-methanoneHCID 49800790—

Reaction Steps

The title compound is synthesized according to general procedure GP5 starting from 100 mg (0.27 mmol) 4-[2-Ethyl-3-(6-methylamino-pyridin-3-ylethynyl)-pyridin-4-yl]-2-fluoro-benzoic acid (A-46) using 50 μL (0.45 mmoL) N-methyl piperazine, 101 mg (0.27 mmol) HATU and 50 μL (0.29 mmol) DIPEA in 1.5 mL DMF. After completion of the reaction, the reaction mixture is filtered and the product is isolated from the obtained solution by RP-HPLC using a H2O/ACN-gradient. Yield: 70 mg (58%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09090564B2
Source datasetuspto-grants-2015_07
ORD IDord-4d63f49be9f34b689352cfcb0ce19f22
Source noteuspto-grants-2015_07