PROCESS FOR THE PREPARATION OF 4, 10BETA-DIACETOXY-2ALPHA-BENZOYLOXY-5BETA, 20-EPOXY-1, 13ALPHA-DIHYDROXY-9-OXO-19-NORCYCLOPROPA
Application 2611/CHENP/2005 published 2007-04-06, filed 2005-10-13
The invention relates to a method for production of 4,10&bgr;-diacetoxy-2&agr;-benzoyloxy-5&bgr;,20-epoxy-1,13&agr;-dihydroxy-9-oxo-19-norcyclopropa[g]tax-11-ene from 4-acetoxy-2&agr;-benzoyloxy-5&bgr;,20- epoxy-1,13&agr;-dihydroxy-9-oxo-7&bgr;-trifluoromethylsulfonyloxy-tax-11-ene by reaction with a molecular sieve in sulpholane.
Applicant
1)AVENTIS PHARMA S.A.
:20 avenue Raymond Aron, F-92160 ANTONY. France
Inventor
1)DIDIER, Eric 2)AMOURET, Guy No of Pages : 17 No of Claims : 13
International Info
Classification: C07D 305/14
Publication Number: WO 04/092151
Application Date: 2004-04-13
Priority Information
03/04613 France 2003-04-14