Syntheses and Evaluation of Simplified Pretubulysin Analogues
作者:Jens L. Burkhart、Rolf Müller、Uli Kazmaier
DOI:10.1002/ejoc.201100155
日期:2011.6
The syntheses of new tubulysin analogues are described, in which the central amino acid, tubuvaline, is replaced by the rather simple building blocks phenyltubuvaline and phenoxytubuvaline. These analogues can be obtained in only two to three steps from easily accessible starting materials. Although the new derivatives are less active than the tubulysins, their activities towards U-2 OS tumor cells