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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 354885Generated: October 27, 2026

Dimethylformamide → Dimethyl[[6-(2-ethylbutyramido)-4-quinazolinylamino]methylene]propanedioate

https://huagongshe.com/reaction/354885

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantDimethyl methoxymethylenemalonateHCID 90770—
Reactant4-Amino-6-(2-ethylbutyramido)quinazolineHCID 13060462—
SolventWaterHCID 962—
ProductDimethyl[[6-(2-ethylbutyramido)-4-quinazolinylamino]methylene]propanedioateHCID 1306050356.1%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 4-amino-6-(2-ethylbutyramido)quinazoline (5.58 g), dimethyl methoxymethylenepropanedioate (5.62 g) and N,N-dimethylformamide (22 ml) was stirred at 100° C. for 1.5 hours. After cooling to ambient temperature, water (90 ml) was added to the reaction mixture. The resulting solid was separated by filtration, washed with water and dried to give dimethyl [[6-(2-ethylbutyramido)-4-quinazolinylamino]methylene]propanedioate (4.85 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04377580
Source datasetuspto-grants-1983_03
ORD IDord-6ac3ed39b7914879bb8f583030772233
Source noteuspto-grants-1983_03