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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1414296Generated: October 26, 2026

1,3-Cyclohexanedione → 2-Amino-4-(4,6-dimethoxypyrimid-5-yl)-1,4,5,6,7,8-hexahydro-5-oxoquinoline-3-carboxylic acid ethyl ester

https://huagongshe.com/reaction/1414296

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,3-CyclohexanedioneHCID 10434—
Reactant4,6-Dimethoxypyrimidine-5-carbaldehydeHCID 4436645—
ReactantCarbamimidoyl-acetic acid ethyl esterHCID 4599837—
SolventEthanolHCID 702—
Product2-Amino-4-(4,6-dimethoxypyrimid-5-yl)-1,4,5,6,7,8-hexahydro-5-oxoquinoline-3-carboxylic acid ethyl esterHCID 7063508265%

Reaction Steps

Upon boiling a solution of 5.7 g of 4,6-dimethoxypyrimidin-5-aldehyde, 3.8 g of cyclohexane-1,3-dione and 4.4 g of amidinoacetic acid ethyl ester in 80 ml of ethanol for 8 hours, 2-amino-4-(4,6-dimethoxypyrimid-5-yl)-1,4,5,6,7,8-hexahydro-5-oxoquinoline-3-carboxylic acid ethyl ester of melting point 273°C (alcohol) is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04001235
Source datasetuspto-grants-1977_01
ORD IDord-2d4a068142bc4bf3892af3ecc288b0c0
Source noteuspto-grants-1977_01