Method for the production of 4'-demethyl -...

Details Method for the production of 4'-demethyl -... Method for the production of 4'-demethyl -...

C - Chemistry, Metallurgy

07

H

C07H 15/207 (2006.01) C07H 17/04 (2006.01)

Patent

CA 2367442

The present invention relates to a method for the production of 4'-demethyl -4'- phosphate-2",3" -bispentafluorophenoxyacetyl - 4",6"-ethylidene - .beta.-D-glucoside epipodophyllotoxin, characterized in that 2,3-bis pentafluorophenoxyacetyl-1-O-triethylsilyl-.beta.-D-glucopyranoside is condensed with 4'-demethyl-4'-aryloxyacetyl-epipodophyllotoxin.

La présente invention propose un procédé de préparation du 4'-déméthyl -4'- phosphate-2",3" - bispentafluorophénoxyacétyl -4",6"-éthylidène - .beta.-D- glucoside d'épi-podophyllotoxine, caractérisé en ce qu'il implique la condensation du 2,3-bis pentafluorophénoxyacétyl-1-O-triéthylsilyl-.beta.-D- glucopyranoside avec la 4'-déméthyl-4'-aryloxyacétyl-épipodophyllotoxine.

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