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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1177774Generated: October 26, 2026

3,4-dihydro-6-hydroxy-3-(1-phenylmethyl-4-piperidinyl)-2(1H)-quinazolinone → 6-Hydroxy-3-piperidin-4-yl-3,4-dihydro-1H-quinazolin-2-one

https://huagongshe.com/reaction/1177774

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,4-dihydro-6-hydroxy-3-(1-phenylmethyl-4-piperidinyl)-2(1H)-quinazolinoneHCID 17958692—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product6-Hydroxy-3-piperidin-4-yl-3,4-dihydro-1H-quinazolin-2-oneHCID 2110220781%

Reaction Steps

3-(1-Benzyl-piperidin-4-yl)-6-hydroxy-3,4-dihydro-1H-quinazolin-2-one (100 mg, 0.3 mmol) in methanol (5 mL) was flushed with nitrogen, and treated with palladium on charcoal (10%, 10 mg). The flask was flushed with hydrogen and allowed to stir under an atmosphere of hydrogen overnight. The reaction was flushed with nitrogen, filtered through celite, and concentrated. Column chromatography gave 60 mg (81%) of the desired material. LC/MS: tR=0.75 min, 248.22 (MH)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07842808B2
Source datasetuspto-grants-2010_11
ORD IDord-1a59fdc5ff6e4f2b9d80c927f324ed6e
Source noteuspto-grants-2010_11