7-triethylsilyl-2-debenzoyl-2-(3-ethenylbenzoyl)baccatin III

2-debenzoyl-2-(3-ethenylbenzoyl)-3'N-debenzoyl-3'N-(3-iodobenzoyl)-2'-triisopropylsilyl-3'-dephenyl-3'-(2-methylprop-1-enyl)-7-triethylsilylpaclitaxel