摘要 |
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. |