Synthesis of potential allosteric modulators of Hsp90 by chemical glycosylation of Eupomatenoid-6
作者:Laura Morelli、Anna Bernardi、Sara Sattin
DOI:10.1016/j.carres.2014.03.006
日期:2014.5
Hsp90 (Heat shock protein-90) is a chaperone protein and an established anti-apoptotic target in cancer therapy. Most of the known small-molecule inhibitors that have shown potent antitumor activity target the Hsp90 N-terminal domain and directly inhibit its ATP-ase activity. Many of these molecules display important secondary effects. A different approach to Hsp90 inhibition consists of targeting
O-Benzoxazolyl imidates as versatile glycosyl donors for chemical glycosylation
作者:Swati S. Nigudkar、Archana R. Parameswar、Papapida Pornsuriyasak、Keith J. Stine、Alexei V. Demchenko
DOI:10.1039/c3ob40667a
日期:——
report a new class of glycosyldonors, benzoxazolyl imidates, for chemical glycosylation. The O-benzoxazolyl (OBox) leaving group was designed with an aim to compare the relative reactivity and stability of similarly structured S-benzoxazolyl (SBox) glycosides (thioimidates) developed in our lab and glycosyl trichloroacetimidates (TCAI, O-imidates) developed by Schmidt. Novel OBox donors can be activated