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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1088762Generated: October 27, 2026

Potassium Carbonate → 4-[[4-[(2,6-Dichlorophenyl)methyl]-1-piperazinyl]acetyl]-4.5-dihydro-6-methyl-7-[3-(trifluoromethyl)phenyl]pyrazolo[1,5-a]pyrimidine-3-carbonitrile, hydrochloride

https://huagongshe.com/reaction/1088762

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1-(2,6-Dichlorobenzyl)piperazineHCID 770796—
Reactant4-(Chloroacetyl)-4,5-dihydro-6-methyl-7-[3-(trifluoromethyl)phenyl]pyrazolo[1,5-a]-pyrimidine-3-carbonitrileHCID 15101085—
SolventTolueneHCID 1140—
Product4-[[4-[(2,6-Dichlorophenyl)methyl]-1-piperazinyl]acetyl]-4.5-dihydro-6-methyl-7-[3-(trifluoromethyl)phenyl]pyrazolo[1,5-a]pyrimidine-3-carbonitrile, hydrochlorideHCID 131716671—

Reaction Steps

A mixture of 1 g of 4-(chloroacetyl)-7-[3-(trifluoromethyl)phenyl]-4,5-dihydro-6-methylpyrazolo[1,5-a]pyrimidine-3-carbonitrile, 1 g of 2,6-dichlorobenzylpiperazine, 600 mg of potassium carbonate and 100 ml of toluene was reacted as described in Example 16, giving the base form of the product, which was converted to the hydrochloride salt by the procedure of Example 97, giving 1.66 g, mp 252°-254° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04963553
Source datasetuspto-grants-1990_10
ORD IDord-fd34d52b5bc544f9bdacaed8d1e78b1b
Source noteuspto-grants-1990_10