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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1727143Generated: November 3, 2026

3-[4-(4-Benzyloxy-3-cyclopentyloxyphenyl)-2-oxo-pyrrolidin-1-yl]benzonitrile → 3-[4-(3-Cyclopentyloxy-4-hydroxyphenyl)-2-oxo-pyrrolidin-1-yl]benzonitrile

https://huagongshe.com/reaction/1727143

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-[4-(4-Benzyloxy-3-cyclopentyloxyphenyl)-2-oxo-pyrrolidin-1-yl]benzonitrileHCID 68828879—
CatalystPalladiumHCID 23938—
SolventEthanol ethylacetateHCID 21584252—
Product3-[4-(3-Cyclopentyloxy-4-hydroxyphenyl)-2-oxo-pyrrolidin-1-yl]benzonitrileHCID 6882839326%

Reaction Steps

200 mg of Pd—C was added to 3-[4-(4-benzyloxy-3-cyclopentyloxyphenyl)-2-oxo-pyrrolidin-1-yl]-benzonitrile (1.7 g. 3.8 mmol) in EtOH/EtOAc and flushed with H2 three times. The mixture was then stirred under H2 at r.t. for 72 h. The mixture was filtered through celite and then concentrated under reduced pressure. The residue was then dissolved in EtOAc and washed with 2N HCl, sat. NaHCO3, and sat. NaCl. Purification by silica gel gave 350 mg of the desired product. Yield: 26%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07495016B2
Source datasetuspto-grants-2009_02
ORD IDord-3e627920ad884fe8b5298ea2091a698b
Source noteuspto-grants-2009_02