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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1177778Generated: November 1, 2026

2(1h)-Quinazolinone,3,4-dihydro-8-methoxy-3-[1-(phenylmethyl)-4-piperidinyl]- → 8-Methoxy-3-piperidin-4-yl-3,4-dihydro-1H-quinazolin-2-one

https://huagongshe.com/reaction/1177778

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2(1h)-Quinazolinone,3,4-dihydro-8-methoxy-3-[1-(phenylmethyl)-4-piperidinyl]-HCID 21102156—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product8-Methoxy-3-piperidin-4-yl-3,4-dihydro-1H-quinazolin-2-oneHCID 1832104793%

Reaction Steps

3-(1-Benzyl-piperidin-4-yl)-8-methoxy-3,4-dihydro-1H-quinazolin-2-one (100 mg, 0.28 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 68 mg (93%) of the desired material. LC/MS: tR=1.11 min, 262.23 (MH)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07842808B2
Source datasetuspto-grants-2010_11
ORD IDord-6027645617da4b7e9c2cf0fd5e1f844b
Source noteuspto-grants-2010_11