From structure-effect relationship of paclitaxel, groups of C1, C7, C9 and C10 have weaker effect on its bioactivity, while C2-benzoyl, C4-acetate, Dring and C13 side chain have stronger effect on it.

• 从紫杉醇的构效关系看，C1、C7、C9和C10位基团对它的生物活性并无太大的影响，但是C2、C4位的基团以及D环和C13位的侧链对紫杉醇的生物活性影响重大。