A Cleavable Amino−Thiol Linker for Reversible Linking of Amines to DNA
摘要:
A cleavable heterobifunctional cross-linker for the reversible conjugation of amines to thiol-modified DNA has been developed and tested. The succinimidyl 2-(vinylsulfonyl)-ethyl carbonate (SVEC) was prepared in three steps and tested for its ability to react with amines and thiols. The linker was efficient for binding leucine to a thiol-modified DNA sequence and for releasing the amino acid at pH 11.8.
Probing the Anticancer Mechanism of (−)-Ainsliatrimer A through Diverted Total Synthesis and Bioorthogonal Ligation
作者:Chao Li、Ting Dong、Qiang Li、Xiaoguang Lei
DOI:10.1002/anie.201407225
日期:2014.11.3
Herein, we report an efficient approach for exploring the novel anticancermechanism of (−)‐ainsliatrimer A, a structurally complex and unique trimeric sesquiterpenoid, through a combined strategy of divertedtotalsynthesis (DTS) and bioorthogonalligation (TQ ligation), which allowed us to visualize the subcellular localization of this natural product in live cells. Further biochemical studies facilitated