Synthesis and Biological Properties of Benzothiazole, Benzoxazole, and Chromen-4-one Analogues of the Potent Antitumor Agent 2-(3,4-Dimethoxyphenyl)-5-fluorobenzothiazole (PMX 610, NSC 721648)
作者:Stefania Aiello、Geoffrey Wells、Erica L. Stone、Hachemi Kadri、Rana Bazzi、David R. Bell、Malcolm F. G. Stevens、Charles S. Matthews、Tracey D. Bradshaw、Andrew D. Westwell
DOI:10.1021/jm800418z
日期:2008.8.1
New fluorinated 2-aryl-benzothiazoles, -benzoxazoles, and -chromen-4-ones have been synthesized and their activity against MCF-7 and MDA 468 breast cancer cell lines compared with the potent antitumor benzothiazole 5. Analogues such as 9a, b and 12a, dyielded submicromolar GI50 values in both cell lines; however, none of the new compounds approached 5 in terms of antitumor potency. For 5, binding
Fluorescence Properties of 5-(5,6-Dimethoxybenzothiazol-2-yl)-2′-deoxyuridine (dbtU) and Oligodeoxyribonucleotides Containing dbtU
作者:Wataru Hirose、Kousuke Sato、Akira Matsuda
DOI:10.1002/ejoc.201100818
日期:2011.11
The photophysical properties of 11 substituted 5‐(benzothiazol‐2‐yl)‐2′‐deoxyuridine derivatives and oligodeoxyribonucleotides (ODNs) containingdbtU are described. The fluorescenceproperties of the ODNs containing 16 combinations of 5′‐XbtU‐3′ and 5′‐btUY‐3′ were compared, and dbtU was found to be a very promising new fluorescent analogue while showing low sensitivity to its microenvironment in DNA