Efficient and Convenient Method for Synthesis of Benzofuran-3-acetic Acids and Naphthafuran-acetic Acids
作者:Mahantesha Basanagouda、Narayanachar、Iranna B. Majati、Shiddappa S. Mulimani、Satish B. Sunnal、Rohit V. Nadiger、Ashok S. Ghanti、Siddeshwar F. Gudageri、Ravi Naik、Akshata Nayak
DOI:10.1080/00397911.2015.1068943
日期:2015.10.2
Herein, we report an efficient and convenient method for synthesis of benzofuran-3-acetic acids and naphthafuran-acetic acids 5a-p by the reaction of substituted-4-bromomethylcoumarins with aqueous sodium hydroxide at refluxing temperature. The obtained products are characterized by infrared, H-1 NMR, C-13 NMR, and mass spectral data. Structures 5a and 5e are confirmed by their single x-ray diffraction studies. The advantages of this method are good yields, easy workup, and no chromatographic purifications.
Synthesis, anti-microbial and anti-cancer evaluation study of 3-(3-benzofuranyl)-coumarin derivatives
作者:Bahubali M. Chougala、Samundeeswari L. Shastri、Megharaja Holiyachi、Lokesh A. Shastri、Sunil S. More、K. V. Ramesh
DOI:10.1007/s00044-015-1449-y
日期:2015.12
The series of 3-coumarin-substituted benzofuran derivatives 4a-4j have been synthesized under optimized experimental condition with excellent yields. All the isolated compounds were characterized and screened anti-microbiological and anti-cancer activity. The anti-microbiological results observed were extremely good against S. aureus, C. albicans and A. niger. The comparative docking studies with gyrase type IIA topoisomerase from mycobacterium tuberculosis docked with ligands and 4j have found lowest docked energy.
Synthesis and Preliminary Evaluation of Benzofuran-Oxadiazole Conjugates as Potential Antitubercular Agents
作者:Veerabhadrayya S. Negalurmath、Obelannavar Kotresh、Mahantesha Basanagouda
DOI:10.14233/ajchem.2019.21831
日期:2019.3
the compounds were screened for preliminary antitubercular activity against Mycobacterium phlei and Mycobacteriumtuberculosis H37RV. Among all the target compounds, the compound possessing chlorine (7k, MIC 1.56 μg/mL) and bromine (7m, MIC 1.56 μg/mL) on 6th position of benzofuran showed highest activity against Mycobacterium phlei. Whereas, bromine on either 5th position (7l, MIC 3.125 μg/mL) or 6th