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Serving 500+ biopharmaceutical companies globally:

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Generated: July 23, 2017

DrugPatentWatch Database Preview

Claims for Patent: 4,814,470

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Claims for Patent: 4,814,470

Title: Taxol derivatives, their preparation and pharmaceutical compositions containing them
Abstract:Taxol derivatives of formula ##STR1## in which R represents hydrogen or acetyl, one of R.sub.1 or R.sub.2 represents hydroxy and the other represents tert-butoxycarbonylamino and their isomers are useful antitumor agents.
Inventor(s): Colin; Michel (Thoiry, FR), Guenard; Daniel (Montrouge, FR), Gueritte-Voegelein; Francoise (Paris, FR), Potier; Pierre (Paris, FR)
Assignee: Rhone-Poulenc Sante (Courbevoie, FR)
Application Number:07/073,156
Patent Claims: 1. A taxol derivative of formula: ##STR7## in which R represents hydrogen or acetyl and one of R.sub.1 and R.sub.2 represents hydroxy and the other represents tert-butoxycarbonylamino, and the stereoisomeric forms thereof and their mixtures.

2. A taxol derivative according to claim 1, in which R is hydrogen, R.sub.1 is hydroxy and R.sub.2 is tert-butoxycarbonylamino, and having the 2'R, 3'S configuration.

3. A taxol derivative according to claim 1, in which R is hydrogen, R.sub.1 is hydroxy, and R.sub.2 is tert-butoxycarbonylamino, and having the 2'S, 3'R configuration.

4. A taxol derivative according to claim 1, in which R is hydrogen, R.sub.1 is tert-butoxycarbonylamino, and R.sub.2 is hydroxy, and having the 2'R, 3'S configuration.

5. A taxol derivative according to claim 1, in which R is hydrogen, R.sub.1 is tert-butoxycarbonylamino, and R.sub.2 is hydroxy and having the 2'S, 3'R configuration.

6. A pharmaceutical composition which contains a taxol derivative as claimed in claim 1 combined with one or more pharmaceutically acceptable, inert or physiologically active diluents or adjuvants.
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Serving 500+ biopharmaceutical companies globally:

Argus Health
Federal Trade Commission
Chinese Patent Office
Queensland Health
Merck
Cantor Fitzgerald
Daiichi Sankyo
Chubb
Citi
Healthtrust

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