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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2184182Generated: October 31, 2026

4-Aminopyridine → 2-(pyridin-4-ylamino)-6-(3,5-dimethoxyphenyl)-8-ethyl-8H-pyrido[2,3-d]pyrimidin-7-one

https://huagongshe.com/reaction/2184182

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-AminopyridineHCID 1727—
ReactantSodium hydrideHCID 24758—
Reactant2-(methylsulfanyl)-6-(3,5-dimethoxyphenyl)-8-ethyl-8H-pyrido[2,3-d]pyrimidin-7-oneHCID 11199113—
Product2-(pyridin-4-ylamino)-6-(3,5-dimethoxyphenyl)-8-ethyl-8H-pyrido[2,3-d]pyrimidin-7-oneHCID 990913666.3%

Reaction Steps

By following the general procedure of Examples 2 and 3, 524.2 mg (5.569 mM) of 4-aminopyridine was reacted with 687.4 mg (17.2 mM) of sodium hydride and 1983.8 mg (5.550 mM) of 2-(methylsulfanyl)-6-(3,5-dimethoxyphenyl)-8-ethyl-8H-pyrido[2,3-d]pyrimidin-7-one to provide 66.3% yield (85.8% purity) of 2-(pyridin-4-ylamino)-6-(3,5-dimethoxyphenyl)-8-ethyl-8H-pyrido[2,3-d]pyrimidin-7-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06900316B2
Source datasetuspto-grants-2005_05
ORD IDord-bbf2260b2aca4d57a5e1553b97426582
Source noteuspto-grants-2005_05