Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 251378Generated: October 25, 2026

1-Methylpiperazine → 3-(5-Amino-4-{3-[2-(4-methyl-piperazin-1-yl)-ethoxy]-benzoyl}-pyrazol-1-yl)-N-cyclopropyl-4-methylbenzamide

https://huagongshe.com/reaction/251378

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-MethylpiperazineHCID 53167—
Reactant3-{5-Amino-4-[3-(2-bromo-ethoxy)-benzoyl]-pyrazol-1-yl}-N-cyclopropyl-4-methylbenzamideHCID 58088946—
SolventEthanolHCID 702—
Product3-(5-Amino-4-{3-[2-(4-methyl-piperazin-1-yl)-ethoxy]-benzoyl}-pyrazol-1-yl)-N-cyclopropyl-4-methylbenzamideHCID 58088978—

Reaction Conditions

Temperature80 °C

Reaction Steps

To the suspension of 3-{5-amino-4-[3-(2-bromoethoxy)-benzoyl]-pyrazol-1-yl}-N-cyclopropyl-4-methyl-benzamide (24 mg, 0.05 mmol) in EtOH (1 ml) was added 1-methylpiperazine (100 mg, 1 mmol) and the mixture was stirred at 80° C. overnight. The solvent was removed, residue was dissolved in EtOAc, washed by water, dried over Na2SO4. Solvent was removed, desired product was obtained as a colorless oil (18 mg, 72%). HPLC (4 minute gradient) tR 1.33 min; MS m/z 503.29 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07863314B2
Source datasetuspto-grants-2011_01
ORD IDord-683ab04bfbda445ab179492a05ea4bd9
Source noteuspto-grants-2011_01