Coupling of thiol and urea-type –NHC(X)NH2 (X = O or NH) groups is effective in promoting oxidative protein folding. In particular, a thiol compound coupled with a guanidyl (X = NH) group significantly accelerates the rates of folding processes and enhances the yields of native proteins.
Synthesis, in vitro, and in vivo antibacterial activity of nocathiacin I thiol-Michael adducts
作者:B. Narasimhulu Naidu、Margaret E. Sorenson、Joanne J. Bronson、Michael J. Pucci、Junius M. Clark、Yasutsugu Ueda
DOI:10.1016/j.bmcl.2005.02.046
日期:2005.4
The synthesis and antibacterial activity of a series of nocathiacin I derivatives (4-20) containing polar water solubilizing groups is described. Thiol-Michael adducts containing acidic polar groups have reduced antibacterial activity whereas those with basic polar groups have retained very good antibacterial activity. (c) 2005 Elsevier Ltd. All rights reserved.
Intramolecular cyclization of guanidinoalkanethiols in aqueous solution
作者:A. A. Mandrugin、V. M. Fedoseev、S. M. Khomutov、A. A. Rodyunin、Yu. A. Leshchev