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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 524241Generated: October 30, 2026

3-Methylbenzenesulphonyl chloride → 5-[3-(Cyclopropylmethoxy)-4-(difluoromethoxy)phenyl]-4,4-dimethyl-2-{1-[(3-methylphenyl)sulfonyl]piperidin-4-yl}-2,4-dihydro-3H-pyrazol-3-one

https://huagongshe.com/reaction/524241

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Methylbenzenesulphonyl chlorideHCID 2734595—
Reactant5-[3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl]-4,4-dimethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one hydrochlorideHCID 66616579—
Product5-[3-(Cyclopropylmethoxy)-4-(difluoromethoxy)phenyl]-4,4-dimethyl-2-{1-[(3-methylphenyl)sulfonyl]piperidin-4-yl}-2,4-dihydro-3H-pyrazol-3-oneHCID 67385198—

Reaction Steps

The title compound is prepared analogously as described for GP1 using 5-[3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl]-4,4-dimethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one hydrochloride (compound B3*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 numberUS09340522B2
Source datasetuspto-grants-2016_05
ORD IDord-da46b306904c41fb80c603e7492fac68
Source noteuspto-grants-2016_05