3'-dephenyl-3'-(o-allyloxyphenyl)-4-deacetyl-4-(hex-5-enoyl)-7-O-triethylsilyl-2'-O-triisopropylsilylpaclitaxel

3'-dephenyl-3'-(o-allyloxyphenyl)-4-deacetyl-4-(hept-6-enoyl)-7-O-triethylsilyl-2'-O-triisopropylsilylpaclitaxel