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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2099306Generated: October 30, 2026

Piperazine → HCID 86624995, compound

https://huagongshe.com/reaction/2099306

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
ReactantTrifluoroacetic acidHCID 6422—
ReactantHCID 57794495HCID 57794495—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 86624995HCID 86624995—

Reaction Conditions

Temperature120 °C

Reaction Steps

1-(2-(2,2,2-trifluoroethoxy)ethyl)-3-((2,2,2-trifluoroethylamino)methyl)-5-chloro-N-(pyrimidin-4-yl)-1H-pyrazolo[4,3-d]pyrimidin-7-amine (213 mg, 0.41 mmol) prepared in Step 1 and piperazine (152 mg, 1.8 mmol) were mixed in dimethyl sulfoxide (3.0 ml) in a reaction vial. The reaction mixture was heated at 120° C. for 10 hours. The reaction was cooled to room temperature and brought to acidic condition by adding trifluoroacetic acid. The crude reaction mixture was purified by reverse phase HPLC (5-95% acetonitrile in water with 0.05% trifluoroacetic acid) and lyophilized to give the title compound as a dark yellow solid (70 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07569572B2
Source datasetuspto-grants-2009_08
ORD IDord-fc01ccf603f244d39e33112893188434
Source noteuspto-grants-2009_08