The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 24, 2001
Filed:
Apr. 27, 1998
Luc Chanteloup, Sargé-lès-Le Mans, FR;
Bruno Chauveau, Le Mans, FR;
Christine Corbin, Etival-lès-Le Mans, FR;
Robert Dhal, Le Mans, FR;
Sonia Le Guen, Reims, FR;
Arnaud Lamy, La Milesse, FR;
Antoine Leze, Le Mans, FR;
Jean-Pierre Robin, Le Mans, FR;
Abstract
The present invention relates to new intermediates for the semisynthesis of taxanes and their preparation processes. It relates to derivatives of oxazolidines or oxazolidinones, as well as to new derivatives of baccatine III. The general process for the synthesis of taxanes according to the invention enables to obtain a product such as PACLITAXEL in only five steps from products available in the market, compared to nine steps in general, for processes of the prior art.