Synthesis of Methoxy-, Methylenedioxy-, Hydroxy-, and Halo-Substituted Benzophenanthridinone Derivatives as DNA Topoisomerase IB (TOP1) and Tyrosyl-DNA Phosphodiesterase 1 (TDP1) Inhibitors and Their Biological Activity for Drug-Resistant Cancer
Synthesis of Methoxy-, Methylenedioxy-, Hydroxy-, and Halo-Substituted Benzophenanthridinone Derivatives as DNA Topoisomerase IB (TOP1) and Tyrosyl-DNA Phosphodiesterase 1 (TDP1) Inhibitors and Their Biological Activity for Drug-Resistant Cancer
The present invention provides compounds of formula I: formula (I) wherein X
1
-X
4
and R
1
-R
12
have any of the values defined in the specification, as well as salts and prodrugs thereof, which inhibit major molecular mechanisms associated with bacterial cell division and proliferation so as to be useful for the treatment and/or prevention of bacterial infections. The invention also provides compositions comprising these compounds as well as methods for using these compounds to inhibit bacterial cell division and proliferation and to treat bacterial infections.
Antibacterial activity of substituted 5-methylbenzo[c]phenanthridinium derivatives
作者:Ajit Parhi、Cody Kelley、Malvika Kaul、Daniel S. Pilch、Edmond J. LaVoie
DOI:10.1016/j.bmcl.2012.09.097
日期:2012.12
Antibiotic resistance has prompted efforts to discover antibiotics with novel mechanisms of action. FtsZ is an essential protein for bacterial cell division, and has been viewed as an attractive target for the development of new antibiotics. Sanguinarine is a benzophenanthridine alkaloid that prevents cytokinesis in bacteria by inhibiting FtsZ self-assembly. In this study, a series of 5-methylbenzo[c]phenanthridinium derivatives were synthesized and evaluated for antibacterial activity against Staphylococcus aureus and Enterococcus faecalis. The data indicate that the presence of a 1- or 12-phenyl substituent on 2,3,8,9-tetramethoxy-5-methylbenzo[c]phenanthridinium chloride significantly enhances antibacterial activity relative to the parent compound or sanguinarine. (C) 2012 Elsevier Ltd. All rights reserved.
US8741917B2
申请人:——
公开号:US8741917B2
公开(公告)日:2014-06-03
Synthesis of Methoxy-, Methylenedioxy-, Hydroxy-, and Halo-Substituted Benzophenanthridinone Derivatives as DNA Topoisomerase IB (TOP1) and Tyrosyl-DNA Phosphodiesterase 1 (TDP1) Inhibitors and Their Biological Activity for Drug-Resistant Cancer
作者:De-Xuan Hu、Wen-Lin Tang、Yu Zhang、Hao Yang、Wenjie Wang、Keli Agama、Yves Pommier、Lin-Kun An