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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 734546Generated: October 29, 2026

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

https://huagongshe.com/reaction/734546

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 numberUS07592346B2
Source datasetuspto-grants-2009_09
ORD IDord-4c06f55dff6144299a40020aec569ebe
Source noteuspto-grants-2009_09