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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1752694Generated: October 28, 2026

2-Isocyanatobutane → 3-sec-Butyl-1-cyclopentyl-7-methoxy-1H-pyrimido[5,4-c]quinoline-2,4-dione

https://huagongshe.com/reaction/1752694

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-IsocyanatobutaneHCID 550850—
Reactant4-Cyclopentylamino-8-methoxy-quinoline-3-carboxylic acid ethyl esterHCID 67249718—
Product3-sec-Butyl-1-cyclopentyl-7-methoxy-1H-pyrimido[5,4-c]quinoline-2,4-dioneHCID 5832944568%

Reaction Steps

3-sec-Butyl-1-cyclopentyl-7-methoxy-1H-pyrimido[5,4-c]quinoline-2,4-dione (25 mg) was prepared from 4-cyclopentylamino-8-methoxy-quinoline-3-carboxylic acid ethyl ester (0.10 mmol) and 2-butyl isocyanate (0.4 mmol) following general procedure C. LCMS: m/z 368 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09163022B2
Source datasetuspto-grants-2015_10
ORD IDord-7592388e2a46489a9af52cbabceb2355
Source noteuspto-grants-2015_10