Benzimidazoquinazolines as new potent anti-TB chemotypes: Design, synthesis, and biological evaluation
作者:Pradeep S. Jadhavar、Kshitij I. Patel、Tejas M. Dhameliya、Nirjhar Saha、Maulikkumar D. Vaja、Vagolu Siva Krishna、Dharmarajan Sriram、Asit K. Chakraborti
DOI:10.1016/j.bioorg.2020.103774
日期:2020.6
intermediately formed 2-(o-aminoaryl)benzimidazole with trialkyl orthoformate/acetate. The resultant benzimidazoquinazolines were evaluated in vitro for anti-TB activity against M. tuberculosis H37Rv (ATCC27294 strain). Fourteen compounds exhibiting MIC values in the range of 0.4-6.25 µg/mL were subjected to cell viability test against RAW 264.7 cell lines and were found to be non-toxic (<30% inhibition at
Nickel-Catalyzed Aerobic Oxidative Isocyanide Insertion: Access to Benzimidazoquinazoline Derivatives via a Sequential Double Annulation Cascade (SDAC) Strategy
作者:Anand H. Shinde、Sagar Arepally、Mayur D. Baravkar、Duddu S. Sharada
DOI:10.1021/acs.joc.6b02423
日期:2017.1.6
An efficient protocol for the synthesis of quinazoline derivatives through nickel-catalyzed ligand-/base-free oxidative isocyanide insertion underaerobicconditions with intramolecular bis-amine nucleophiles has been developed. A one-pot sequential double annulation cascade (SDAC) strategy involving an opening of isatoic anhydride and annulation to benzimidazole and further nickel-catalyzed intramolecular