Synthesis of polymer conjugates of indolocarbazole compounds

A - Human Necessities – 61 – K

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A61K 47/48 (2006.01)

Patent

CA 2747838

The present invention relates to a process for the preparation of polymer conjugates of i.pi.dolocarbazole compounds, in particular of polymer conjugates of K-252a and derivatives thereof, by a synthetic route which results in a highly pure product, with a high product yield. In a further aspect the present invention relates to novel polymer conjugates of K-252a and derivatives thereof, wherein the chemical group linking the polymer unity to the K-252a or to the K-252a derivative compound is characterised by a 5-member oxazolidindionic cyclic structure. These novel polymer conjugates are obtained through the novel synthetic route with high purity and high yields,

La présente invention concerne un procédé de préparation de conjugués polymères de composés de l'indolocarbazole, en particulier de conjugués polymères du K-252a et de ses dérivés, par une voie de synthèse permettant d'obtenir un produit d'une grande pureté, avec un rendement élevé. Sous un autre de ses aspects, l'invention concerne de nouveaux conjugués polymères du K-252a et de ses dérivés, le groupe chimique reliant le motif polymère au K-252a ou à son dérivé étant caractérisé en ce qu'il possède une structure cyclique oxazolidindionique à 5 membres. Ces nouveaux conjugués polymères sont obtenus via ladite nouvelle voie de synthèse, avec une grande pureté et des rendements élevés.

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