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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2250253Generated: 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/2250253

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 numberUS07314883B2
Source datasetuspto-grants-2008_01
ORD IDord-15dda1b7960e4237a66bb928beea66d0
Source noteuspto-grants-2008_01