Enzymatic desymmetrization of 2,5-dideoxystreptamine precursors
摘要:
The stereoselective enzymatic acylation of meso-6,7-diazabicyclo[3.2.1]oct-6-ene-2,4-diol 4 and meso-4,6-diazidocyclohexane-1,3-diol 5 in organic media gave the corresponding monoesters in high enantiomeric excess. The hydrolysis of the corresponding diacetate derivatives in the presence of a different set of enzymes provided the same monoesters. The products are precursors of dideoxystreptamine, an aminocyclitol found in synthetic aminoglycoside antibiotics. (c) 2006 Elsevier Ltd. All rights reserved.
Guanidinylated 2,5-dideoxystreptamine derivatives as anthrax lethal factor inhibitors
作者:Guan-Sheng Jiao、Lynne Cregar、Mark E. Goldman、Sherri Z. Millis、Cho Tang
DOI:10.1016/j.bmcl.2005.12.038
日期:2006.3
Anthraxlethal factor is a Zn2+-dependent metalloprotease and the key virulence factor of tripartite anthrax toxin secreted by Bacillus anthracis, the causative agent of anthrax. A series of guanidinylated 2,5-dideoxystreptamine derivatives were designed and synthesized as inhibitors of lethal factor, some of which show strong inhibitory activity against lethal factor in an in vitro FRET assay. Preparation and structure-activity relationships of these compounds are presented. (C) 2005 Elsevier Ltd. All rights reserved.
Aminocyclitols. 31. Synthesis of dideoxystreptamines