Process for the preparation of vincristine

C - Chemistry – Metallurgy – 07 – D

Patent

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260/237.3

C07D 519/04 (2006.01)

Patent

CA 1260932

PRECIS DE LA DIVULGATION: La présente invention concerne un procédé de préparation de vincristine. Ce procédé d'hémisynthèse se caractérise en ce qu'on oxyde la vinblastine ou ses sels, par l'acide chromique ou ses sels, à basse température dans l'acétate d'éthyle. Il est tout particulièrement intéres- sant dans la mesure où il permet d'obtenir un rendement élevé sans formation de peroxydes, risque d'inflammabilité ou toxicité.

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