[EN] PROCESS FOR CONVERTING 9-DIHYDRO-13-ACETYLBACCATIN III INTO DOCETAXEL OR PACLITAXEL<br/>[FR] PROCÉDÉ DE CONVERSION DE LA 9-DIHYDRO-13-ACÉTYLBACCATINE III EN DOCÉTAXEL OU PACLITAXEL
申请人:CANADA INC 6570763
公开号:WO2009023967A1
公开(公告)日:2009-02-26
Processes for the preparation of docetaxel and paclitaxel or analogs from 9-dihydro-13-acetylbaccatin III via key intermediates (4), (5), (6), (6'), (8) and (8') or via intermediate (12) as well as processes for the preparation of said intermediates are disclosed. Said processes involve, in particular, oxidation of the hydroxy group at C-10, reaction with side chain precursors and intramolecular isomerisation of the oxo at C-10 to produce the 9-oxo isomer. Paclitaxel and docetaxel are useful in the treatment of cancer. Formulae (I), (II), (III).
Selective Deesterification Studies on Taxanes: Simple and Efficient Hydrazinolysis of C-10 and C-13 Ester Functionalities
作者:Apurba Datta、Michael Hepperle、Gunda I. Georg
DOI:10.1021/jo00108a053
日期:1995.2
US7202370B2
申请人:——
公开号:US7202370B2
公开(公告)日:2007-04-10
[EN] BIOLOGICAL POLYMER WITH DIFFERENTLY CHARGED PORTIONS<br/>[FR] POLYMÈRE BIOLOGIQUE AVEC DES PARTIES CHARGÉES DIFFÉREMMENT
申请人:TECHNOLOGY INNOVATIONS LLC
公开号:WO2007086882A2
公开(公告)日:2007-08-02
[EN] A biological polymer assembly with a biological polymer that contains at least 90 percent of tubulin and a positively charged segment. The positively charged segment has a molecular weight of at least about 5,000 Daltons, a bulk electrical conductivity of at least about 10-7 ohm-1 meter-1 Siemens, a concentration of elemental charges per cubic centimeter of from about 1012 to about 1025, and a length of at least about 2 nanometer. [FR] La présente invention concerne un ensemble polymère biologique avec un polymère biologique contenant au moins 90 pourcent de tubuline et un segment chargé positivement. Le segment chargé positivement possède une masse moléculaire d'au moins environ 5.000 daltons et une conductivité électrique brute d'au moins environ 10-7 ohm-1 mètre-1 Siemens, une concentration de charges élémentaires par centimètre cube comprise entre 1012 et environ 1025, et une longueur d'au moins environ 2 nanomètres