Design, Synthesis, and Biological Properties of Highly Potent Tubulysin D Analogues
作者:Andrew W. Patterson、Hillary M. Peltier、Florenz Sasse、Jonathan A. Ellman
DOI:10.1002/chem.200701057
日期:2007.11.26
Ten analogues of tubulysin D were synthesized and assayed against established mammalian cell lines, including cancer cells measuring inhibition of cell growth by an MTT assay. These experiments establish for the first time the essential features for the potent cytotoxicity of tubulysin D. The activities of analogues 2 to 5 demonstrate that numerous modifications may be introduced at the C-terminus
合成了十种微管溶素D类似物,并针对已建立的哺乳动物细胞系进行了测定,包括通过MTT测定法测量细胞生长抑制作用的癌细胞。这些实验首次确定了微管蛋白D的有效细胞毒性的基本特征。类似物2至5的活性表明,可以在天然产物的C端引入许多修饰,但活性只有适度的下降,而类似物6至8的活性表明,在N端必须存在碱性胺以维持活性。最令人惊讶的是,类似物10确定了用稳定的N-甲基取代化学不稳定的O-酰基N,O-乙缩醛几乎没有活性损失。合计,