Ureido and thioureido derivatives of 4-amino-2(5h)-furanones...

C - Chemistry – Metallurgy – 07 – D

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C07D 307/66 (2006.01) A61K 31/34 (2006.01) A61K 31/38 (2006.01) C07D 333/36 (2006.01) C07D 405/12 (2006.01) C07D 409/12 (2006.01)

Patent

CA 2302284

Subject of the present invention are compounds of general formula (I), wherein A is oxygen or sulfur; X is oxygen or sulfur; R1 and R2 are independently hydrogen or an alkyl group with from 1 to 6 carbon atoms; R is selected from alkyl, cycloalkyl, alkylsulphinyl, alkylsulphonyl, hydroxyalkyl, napthtyl, phenyl group which can be unsubsituted or substituted; or R is a 5- or 6- membered heterocycle containing from 1 to 3 heteroatoms selected from oxygen, sulfur and nitrogen, which can be optionally benzocondensed, the pure steroisomers or mixtures thereof as well as salts thereof with pharmaceutically acceptable acids or bases, for the use as medicaments, in particular as antitumor agents.

L'invention concerne des composés représentés par la formule (I), dans laquelle: A représente oxygène ou soufre; X représente oxygène ou soufre; R1 et R2 représentent indépendamment hydrogène ou un groupe alkyle comportant 1 à 6 atomes de carbone; R est sélectionné dans un groupe alkyle, cycloalkyle, alkylsulfinyle, alkylsulfonyle, hydroxyalkyle, naphtyle, phényle pouvant être insubstitué ou substitué; ou R représente un composé hétérocyclique à 5 ou 6 éléments contenant de 1 à 3 hétéroatomes sélectionnés dans oxygène, soufre et azote, pouvant être éventuellement benzocondensé, leurs stéréoisomères purs ou leurs mélanges, ainsi que leurs sels avec leurs acides ou leurs bases acceptables sur le plan pharmaceutique, afin de les mettre en application sous forme de médicaments, en particulier, en tant qu'agents anti-tumoraux.

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