Purpurealidin I (1) showed no selectivity but its simplified pyridin-2-yl derivative (36) had the best improvement in selectivity (Selectivity index 4.1). This shows that the marine bromotyrosines are promising scaffolds for developing cytotoxic agents and the full understanding of the elements of their SAR and improving the selectivity requires further optimization of simplified bromotyrosine derivatives.
Rapid synthesis and antimicrobial activity of novel 4-oxazolidinone heterocycles
作者:Nataliia V. Shymanska、Il Hwan An、Sebastián Guevara-Zuluaga、Joshua G. Pierce
DOI:10.1016/j.bmcl.2015.06.003
日期:2015.11
The synoxazolidinone family of marine natural products bear an unusual 4-oxazolidinone heterocyclic core and promising antimicrobialactivity against several strains of pathogenic bacteria. As part of our research program directed at the synthesis and chemical biology of this family of natural products we have developed a one-step method for the generation of variously substituted 4-oxazolidinone scaffolds
An improved total synthesis of spermatinamine, an inhibitor of isoprenylcysteine carboxy methyltransferase
作者:Nisar Ullah、Shamsuddeen A. Haladu、Basem A. Mosa
DOI:10.1016/j.tetlet.2010.10.164
日期:2011.1
An improved total synthesis of spermatinamine, an inhibitor of the anticancer target, isoprenylcysteine carboxy methyltransferase (Icmt) was accomplished from the commercially available 3,4-dibromo-4-hydroxybenzaldehyde via a high yielding reaction sequence in an overall yield of 31%. (C) 2010 Elsevier Ltd. All rights reserved.