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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1914173Generated: October 26, 2026

3-Methylbenzenesulphonyl chloride → 5-(3,4-Dimethoxyphenyl)-4-methyl-2-{1-[(3-methylphenyl)sulfonyl]piperidin-4-yl}-4-propyl-2,4-dihydro-3H-pyrazol-3-one

https://huagongshe.com/reaction/1914173

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Methylbenzenesulphonyl chlorideHCID 2734595—
Reactant5-(3,4-dimethoxyphenyl)-4-methyl-2-piperidin-4-yl-4-propyl-2,4-dihydro-3H-pyrazol-3-one hydrochlorideHCID 66616509—
Product5-(3,4-Dimethoxyphenyl)-4-methyl-2-{1-[(3-methylphenyl)sulfonyl]piperidin-4-yl}-4-propyl-2,4-dihydro-3H-pyrazol-3-oneHCID 67365940—

Reaction Steps

The title compound is prepared analogously as described for GP1 using 5-(3,4-dimethoxyphenyl)-4-methyl-2-piperidin-4-yl-4-propyl-2,4-dihydro-3H-pyrazol-3-one hydrochloride (compound B8*HCl) and 3-methylbenzenesulfonyl chloride as starting compounds. The crude product is purified by crystallization from methanol to yield the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08609848B2
Source datasetuspto-grants-2013_12
ORD IDord-51693a2126b845f788847c4e0a8260a8
Source noteuspto-grants-2013_12