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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1353603Generated: October 25, 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/1353603

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 numberUS07220862B2
Source datasetuspto-grants-2007_05
ORD IDord-e4b32c66370f40a59264c9e92ce0a1cb
Source noteuspto-grants-2007_05