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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2373598Generated: October 30, 2026

Hydrochloric Acid → 2-Methyl-5-(4-{2-[3-(1H-pyrazol-1-yl)phenyl]ethyl}-1-piperazinyl)quinoline

https://huagongshe.com/reaction/2373598

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-Methyl-5-(4-{[3-(1H-pyrazol-1-yl)phenyl]acetyl}-1-piperazinyl)quinolineHCID 49851260—
SolventTetrahydrofuranHCID 8028—
Product2-Methyl-5-(4-{2-[3-(1H-pyrazol-1-yl)phenyl]ethyl}-1-piperazinyl)quinolineHCID 4985077252%

Reaction Conditions

Temperature60 °C

Reaction Steps

A 1M tetrahydrofuran solution of borane-tetrahydrofuran complex (3 eq) was added to a stirred solution of 2-methyl-5-(4-{[3-(1H-pyrazol-1-yl)phenyl]acetyl}-1-piperazinyl)quinoline (E97)(1 eq) in tetrahydrofuran at room temperature under an inert atmosphere. The solution was heated to 60° C. for 3 hrs. An aqueous 3N solution of HCl was added and the solution was stirred at room temperature for 12 hrs. The solvent was removed under reduced pressure. The crude material was purified by SCX cartridge affording the title compound in 52% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07459456B2
Source datasetuspto-grants-2008_12
ORD IDord-7e5ee6f64f47454fb8e58ca6e94dba61
Source noteuspto-grants-2008_12