Novel antiviral agents

C - Chemistry – Metallurgy – 07 – C

Patent

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C07C 69/95 (2006.01) A61K 31/235 (2006.01) C07C 69/00 (2006.01)

Patent

CA 2163793

Novel antiviral (including antiretroviral) compounds are mono- or dicarboxylic acid esters of bypericin in which one or both of the methyl groups of hypericin are substituted by carboxylic acid ester groups of the formula COOR3 in which R3 is alkyl, the chain of which is optionally interrupted by one or more oxygen or sulphur atoms. R3 is preferably methyl, ethyl, propyl, butyl, 2-methoxyethyl or 2-(2-methoxyethoxy)ethyl. The compounds may be formulated into pharmaceutical compositions and may be used in any manner which has previously been known for hypericin.

Les nouveaux composés antiviraux (et antirétroviraux) sont des esters de l'acide mono-carboxylique ou di-carboxylique de l'hypericine dans lesquels un ou les deux groupes méthyle de l'hypericine sont substitués par des groupes ester d'acide carboxylique ayant la formule COOR<3> dans laquelle R<3> représente alkyle, dont la chaîne est éventuellement interrompue par un ou plusieurs atomes d'oxygène ou de soufre. R<3> représente de préférence méthyle, éthyle, propyle, butyle, 2-méthoxyéthyle ou 2-(2-méthoxyéthoxy)éthyle. Les composés peuvent être formulés afin d'obtenir des compositions pharmaceutiques et peuvent être utilisés sous toute forme connue jusqu'à présent pour l'hypéricine.

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