Exploring the limits of benzimidazole DNA-binding oligomers for the hypoxia inducible factor (HIF) site
作者:Anne Viger、Peter B. Dervan
DOI:10.1016/j.bmc.2006.08.028
日期:2006.12
The vascular endothelial growth factor (VEGF) and its receptors have been implicated as key-factors in tumor angiogenesis and are major targets in cancer therapy. New oligomers which mimic the architecture of DNA-binding polyamides have been designed to target the hypoxia inducible factor (HIF-1 alpha) binding site on the promoter of VEGF gene. These oligomers incorporate an increasing number of six-five fused rings such as hydroxybenzimidazole-imidazole, benzimidazole pyrrole, benzimidazole-chlorothiophene, and imidazopyridine-pyrrole, and bind the VEGF hypoxia response element (HRE) 5'-TACGT-3' with high affinity and selectivity. (c) 2006 Elsevier Ltd. All rights reserved.
A Convenient Method for the Synthesis of DNA-Recognizing Polyamides in Solution
作者:Junhua Xiao、Gu Yuan、Weiqiang Huang、Albert S. C. Chan、K.-L. Daniel Lee
DOI:10.1021/jo000135n
日期:2000.9.1
A convenient method for the synthesis of polyamides containing N-methylpyrrole (Py) and N-methylimidazole (Im) in solution has been developed. Most of the building blocks have been prepared by a haloform reaction in a simple way that column chromatography can be avoided. By use of the DCC/HOBT coupling reaction, the building blocks prepared have been effectively connected to construct a variety of subchains and polyamides without employing amino protection and deprotection. By use of the present method, an eight-ring polyamide, PyPyPyPy gamma PyImImPy beta Dp (gamma is gamma-aminobutyric acid, beta is beta-alanine, Dp is N,N-dimethylpropyldiamine), has been synthesized by the coupling of two four-ring subchains in one step.
Dwyer, Tammy J.; Geierstanger, Bernhard H.; Bathini, Yadagiri, Journal of the American Chemical Society, 1992, vol. 114, # 15, p. 5911 - 5919
作者:Dwyer, Tammy J.、Geierstanger, Bernhard H.、Bathini, Yadagiri、William Lown、Wemmer, David E.