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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1749096Generated: November 1, 2026

2,4-Dimethoxybenzylamine → 3-benzyl-6-(2,4-dimethoxy-benzylamino)-1-phenyl-3,4-dihydro-1H-pyrido[3,2-d]pyrimidin-2-one

https://huagongshe.com/reaction/1749096

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,4-DimethoxybenzylamineHCID 597250—
Reactant3-benzyl-6-fluoro-1-phenyl-3,4-dihydro-1H-pyrido[3,2-d]pyrimidin-2-oneHCID 70980548—
Product3-benzyl-6-(2,4-dimethoxy-benzylamino)-1-phenyl-3,4-dihydro-1H-pyrido[3,2-d]pyrimidin-2-oneHCID 7098136240.4%

Reaction Conditions

Temperature150 °C

Reaction Steps

A mixture of 3-benzyl-6-fluoro-1-phenyl-3,4-dihydro-1H-pyrido[3,2-d]pyrimidin-2-one (112 mg, 0.34 mmol, 1.0 equiv) and 2,4-dimethoxybenzyl-amine (1.0 mL, 6.7 mmol, 20 equiv) was heated in the microwave reactor at 150° C. for 2 h. The crude reaction mixture was purified by column chromatography (SiO2, eluted with petrol—EtOAc 0-50%) to afford 3-benzyl-6-(2,4-dimethoxy-benzylamino)-1-phenyl-3,4-dihydro-1H-pyrido[3,2-d]pyrimidin-2-one (66 mg). MS: [M+H]+=481.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09155743B2
Source datasetuspto-grants-2015_10
ORD IDord-54764221af55409698c90b88316c6904
Source noteuspto-grants-2015_10