Highly purified and crystalline form of harringtonine

Details Highly purified and crystalline form of harringtonine Highly purified and crystalline form of harringtonine

C - Chemistry, Metallurgy

07

D

C07D 491/20 (2006.01) A61K 31/55 (2006.01) A61P 35/00 (2006.01)

Patent

CA 2441428

The invention concerns a natural, synthetic or semi-synthetic harringtonines including their tautomeric forms and their salts of the following formula (I): wherein n = 2 (i.e. harringtonine) or n = 3(i.e. homoharringtonine), in which the total content of impurities, possibly including enantiomeric forms, is lower than 1%, and/or the content of the major impurity is lower than 0.9%, and/or the chromatographic assay exhibits a harringtonines content higher than 97,5%.

L'invention concerne des harringtonines naturelles, synthétiques ou semi-synthétiques, y compris leurs formes tautomériques et leurs sels de la formule suivante: où n = 2 (notamment harringtonine) ou n = 3 (notamment homoharringtonine), le contenu total d'impuretés, éventuellement incluant des formes énantiomériques, est inférieur à 1 %, et/ou le contenu de l'impureté principale est inférieur à 0.9 %, et/ou l'ensemble chromatographique présente un contenu d'harringtonines supérieur à 97,5 %.

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