Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1914118Generated: November 3, 2026

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

https://huagongshe.com/reaction/1914118

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsoquinoline-4-carboxylic acidHCID 459768—
Reactant5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one hydrochlorideHCID 66616406—
Product5-(3,4-Dimethoxyphenyl)-2-[1-(isoquinolin-4-ylcarbonyl)piperidin-4-yl]-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-oneHCID 46205298—

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 isoquinoline-4-carboxylic acid as starting compounds. The crude product is purified by chromatography (amino phase silica gel and DCM/Methanol=97:3) to yield the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08609848B2
Source datasetuspto-grants-2013_12
ORD IDord-ca365af5ce7745c2a0d428b7eb118327
Source noteuspto-grants-2013_12