essential for activity. An aryl group is a good replacement for the olefin. The total synthesis of structurally simplified C11-deoxypsymberin (29) was completed, and its activity is consistently more potent than the natural product which provides a unique opportunity for further SAR studies in the psymberin and pederin family. Preliminary mechanism studies suggest the mode of action of psymberin is
通过修饰有效的抗癌海洋
天然产物symberin / irciniastatin A(1)的不饱和侧链进行结构-活性关系(
SAR)研究表明,在C4和C5处的取代对于Psymberin的细胞毒性很重要,但末端双键并不重要活动必不可少的。芳基是
烯烃的良好替代。完成了结构简化的C11-
脱氧psymberin的全合成(29),其活性始终比
天然产物强,这为psymberin和pederin家族的
SAR研究提供了独特的机会。初步的机制研究表明psymberin的作用方式是通过细胞凋亡。