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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1719947Generated: October 25, 2026

Dimethylformamide → Dimethyl[{6-(3,3-dimethylbutyramido)-4-quinazolinylamino}methylene]propanedioate

https://huagongshe.com/reaction/1719947

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantDimethyl methoxymethylenemalonateHCID 90770—
Reactant4-Amino-6-(3,3-dimethylbutyramido)quinazolineHCID 13060460—
SolventWaterHCID 962—
ProductDimethyl[{6-(3,3-dimethylbutyramido)-4-quinazolinylamino}methylene]propanedioateHCID 1306050682.7%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 4amino-6-(3,3-dimethylbutyramido)-quinazoline (8.5 g), dimethyl methoxymethylenepropanedioate (12.75 g) and N,N-dimethylformamide (34 g) was stirred for an hour at 100° C. After cooling to ambient temperature, to the resultant mixture was added water to give precipitates, which were separated by filtration, washed with water and dried to give crystalline dimethyl [{6-(3,3-dimethylbutyramido)-4-quinazolinylamino}methylene]propanedioate (10.9 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04543356
Source datasetuspto-grants-1985_09
ORD IDord-a995adb2c6c4433f941535a0a7469fe5
Source noteuspto-grants-1985_09