Synthesis and Evaluation of Dolastatin 10 Analogues Containing Heteroatoms on the Amino Acid Side Chains
作者:Julien Dugal-Tessier、Stuart D. Barnscher、Akira Kanai、Brian A. Mendelsohn
DOI:10.1021/acs.jnatprod.7b00359
日期:2017.9.22
dolastatin 10 core scaffold has mainly focused on modifications of the P1, N-terminus, and P5, C-terminus, with minimal attention to the P2 subunit. In this paper we discuss the introduction of heteroatoms to the P2 side chain, which results in potent activity in vitro. The most active compounds contained azides in the P2 unit and required a phenylalanine-derived P5 subunit.
天然存在的dolastatin 10的合成类似物因其强大的体外活性以及在抗体药物偶联物(ADC)中的有效负载而在癌症中引起了极大的兴趣。dolastatin 10核心支架的修饰主要集中在P1,N末端和P5,C末端的修饰,而对P2亚基的关注却很少。在本文中,我们讨论了将杂原子引入P2侧链的方法,该方法可在体外产生有效的活性。活性最高的化合物在P2单元中包含叠氮化物,并且需要苯丙氨酸衍生的P5亚基。