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filingDate 1992-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date>
inventor http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5fd7d416635108ac4261c1ec192b2254
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ee753060d426f7fee43edb163038efa0
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publicationDate 1993-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber EP-0524093-A1
titleOfInvention Derivatives of analogues of taxol, their preparation and compositons containing them
abstract New derivatives of taxol analogues of general formula (I), their preparation and the compositions containing them.n n n Ar représente un radical aryle, R représente un radical de formule générale n n        R₇O-   (II) n ndans laquelle R₇ représente un radical alcoyle éventuellement substitué, alcényle, alcynyle, cycloalcoyle, cycloalcényle, bicylcloalcoyle, phényle ou hétérocyclyle, R₁ et R₂, identiques ou différents, représentent un atome d'hydrogène ou un radical de formule générale (III) dans laquelle R₃ et R₄, identiques ou différents, représentent nhydrogène ou alcoyle (éventuellement substitué par hydroxy, carboxy, alcoyloxycarbonyle ou un radical de formule (IV) dans laquelle R₅ et R₆, identiques ou différents, représentent hydrogène ou alcoyle ou forment ensemble un hétérocycle saturé ou non saturé à 5 ou 6 chaînons) ou bien R₃ et R₄ forment un hétéroycle saturé ou non saturé à 5 ou 6 chaînons. In formula (I): Ar represents an aryl radical, R represents a radical of general formula R₇O- (II) in which R₇ represents an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, bicylcloalkyl, phenyl or heterocyclyl radical, R₁ and R₂, identical or different, represent a hydrogen atom or a radical of general formula (III) in which R₃ and R₄, identical or different, represent hydrogen or alkyl (optionally substituted by hydroxy, carboxy, alkyloxycarbonyl or a radical of formula (IV) in which R₅ and R₆, identical or different, represent hydrogen or alkyl or together form a saturated or unsaturated heterocycle saturated with 5 or 6 links) or else R₃ and R₄ form a saturated or unsaturated heteroycle with 5 or 6 links. n n n The new products of formula (I) have remarkable antitumor and antileukemic properties.
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