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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1914112Generated: October 25, 2026

4-Quinolinecarboxylic acid → 5-(3,4-Dimethoxyphenyl)-4,4-dimethyl-2-[1-(quinolin-4-ylcarbonyl)piperidin-4-yl]-2,4-dihydro-3H-pyrazol-3-one

https://huagongshe.com/reaction/1914112

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Quinolinecarboxylic acidHCID 10243—
Reactant5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one hydrochlorideHCID 66616406—
Product5-(3,4-Dimethoxyphenyl)-4,4-dimethyl-2-[1-(quinolin-4-ylcarbonyl)piperidin-4-yl]-2,4-dihydro-3H-pyrazol-3-oneHCID 46204965—

Reaction Steps

The title compound is prepared analogously as described for GP2-WU2 using 5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-(piperidin-4-yl)-2,4-dihydro-3H-pyrazol-3-one (compound B1) and quinoline-4-carboxylic acid as starting compounds. The crude product is purified by chromatography (silica gel and DCM/diethyl ether/methanol=5:5:1) to yield the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08609848B2
Source datasetuspto-grants-2013_12
ORD IDord-a59ecf89d3804b0987addf3ba70cb88d
Source noteuspto-grants-2013_12