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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1053064Generated: October 25, 2026

3-Ethylphenyl isocyanate → 1-Cyclopentyl-3-(3-ethyl-phenyl)-7-methoxy-1H-pyrimido[5,4-c]quinoline-2,4-dione

https://huagongshe.com/reaction/1053064

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Ethylphenyl isocyanateHCID 2769637—
Reactant4-Cyclopentylamino-8-methoxy-quinoline-3-carboxylic acid ethyl esterHCID 67249718—
Product1-Cyclopentyl-3-(3-ethyl-phenyl)-7-methoxy-1H-pyrimido[5,4-c]quinoline-2,4-dioneHCID 5832940466.9%

Reaction Steps

1-Cyclopentyl-3-(3-ethyl-phenyl)-7-methoxy-1H-pyrimido[5,4-c]quinoline-2,4-dione (89 mg) was prepared from 4-cyclopentylamino-8-methoxy-quinoline-3-carboxylic acid ethyl ester (0.32 mmol) and 1-ethyl-3-isocyanato-benzene (0.48 mmol) following general procedure C. LCMS: m/z 416 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09393245B2
Source datasetuspto-grants-2016_07
ORD IDord-694fea3bfeb844909f55ac78d330e3d7
Source noteuspto-grants-2016_07