Controlling Selectivity for Cycloadditions of Nitrones and Alkenes Tethered by Benzimidazoles: Combining Experiment and Theory
作者:Liping Meng、Selina C. Wang、James C. Fettinger、Mark J. Kurth、Dean J. Tantillo
DOI:10.1002/ejoc.200801211
日期:2009.4
Herein we describe a combined experimental/theoretical study on the effects of substituents on regio- and stereoselectivity in intramolecular 1,3-dipolar cycloadditions of nitrones and alkenestethered by benzimidazoles. By employing a large substituent at position R2 or R3, complete selectivity was achieved for either the fused or bridged cycloadduct, respectively. In addition, these cycloadducts
Benzimidazole tethered pyrrolo[3,4-b]quinoline with broad-spectrum activity against fungal pathogens
作者:Pedro Villa、Natarajan Arumugam、Abdulrahman I. Almansour、Raju Suresh Kumar、S.M. Mahalingam、Keiji Maruoka、Shankar Thangamani
DOI:10.1016/j.bmcl.2019.01.006
日期:2019.3
Fungal infections caused by Candida and Cryptococcus are particularly dangerous for immunocompromised individuals. In this study, we identified that benzimidazole fused pyrrolo [3,4-b]quinoline compounds have potent antifungal activity against several clinical isolates of pathogenic fungal strains. Specifically, the compound 6a did not show cytotoxicity against mammalian cells at a concentration that inhibits the growth of fungal strains. In addition, the compound 6a also significantly reduced the metabolic activity of fungal cells in the Candida albicans biofilms. Collectively, our results indicate that benzimidazole fused quinoline compounds have a potential to develop as an antifungal agents.
Synthesis and antimicrobial activity of novel benzo[4', 5']-imidazo[1',2':1,2]pyrrolo[3,4-b]isoxazolo[4,5-e]pyridines
作者:Prasoona, G.、Kishore, B.、Brahmeshwari, G.
DOI:10.56042/ijc.v61i2.60714
日期:——
6-Beta(substituted)-(S)-hydroxymethylpenicillanic acids and derivatives thereof