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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1914200Generated: October 26, 2026

5-(Benzyloxy)-2-methylbenzoic acid → 2-(1-{[5-(Benzyloxy)-2-methylphenyl]carbonyl}piperidin-4-yl)-5-(3,4-diethoxyphenyl)-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-one

https://huagongshe.com/reaction/1914200

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-(Benzyloxy)-2-methylbenzoic acidHCID 59760047—
Reactant5-(3,4-diethoxyphenyl)-4,4-dimethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one hydrochlorideHCID 66616549—
Product2-(1-{[5-(Benzyloxy)-2-methylphenyl]carbonyl}piperidin-4-yl)-5-(3,4-diethoxyphenyl)-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-oneHCID 67363040—

Reaction Steps

The title compound is prepared analogously as described for GP2-WU2 using 5-(3,4-diethoxyphenyl)-4,4-dimethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one (compound B2) and 5-(benzyloxy)-2-methylbenzoic acid (compound F1) as starting compounds. The crude product is purified by chromatography (amino phase silica gel and DCM) and by a second chromatography (silica gel and cyclohexane/EA=6:4) to yield the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08609848B2
Source datasetuspto-grants-2013_12
ORD IDord-42d2572b407f4e4ea742d812c97a178f
Source noteuspto-grants-2013_12