Cobalt mediated ring contraction reaction of lapachol and initial antibacterial evaluation of naphthoquinones derived from lapachol
摘要:
The synthesis of 2-hydroxy-2-(3-methylbut-2-enyl)-2H-indene-1,3-dione 3, from lapachol which involves a ring contraction via the Hooker intermediate 1,2-dihydroxy-2-(3-methylbut-2-en-1-yl)-3-oxo-2,3-dihydro-1H-indene-1-carboxylic acid 2 is described. Different pyranonaphthoquinone derivatives, obtained in our previous synthetic work, were screened for antimycobacterial (Mycobacterium tuberculosis) activity and against resistant strains of Gram-positive (Bacillus cereus and Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria. The results indicated significant activity of all the tested samples against M. tuberculosis and only moderate activity against the Gram-positive and Gram-negative bacteria.
Gill, G. Bryon; Idris, Muhammad S. Hj.; Kirollos, Kirollos S., Journal of the Chemical Society. Perkin transactions I, 1992, # 18, p. 2355 - 2366
作者:Gill, G. Bryon、Idris, Muhammad S. Hj.、Kirollos, Kirollos S.
DOI:——
日期:——
Cobalt mediated ring contraction reaction of lapachol and initial antibacterial evaluation of naphthoquinones derived from lapachol
作者:Kenneth O. Eyong、Senthil P. Kumar、Victor Kuete、Gabriel N. Folefoc、Henrietta Langmi、Marion J. J. Meyer、Namrita Lall、Sundarababu Baskaran
DOI:10.1007/s00044-011-9788-9
日期:2012.8
The synthesis of 2-hydroxy-2-(3-methylbut-2-enyl)-2H-indene-1,3-dione 3, from lapachol which involves a ring contraction via the Hooker intermediate 1,2-dihydroxy-2-(3-methylbut-2-en-1-yl)-3-oxo-2,3-dihydro-1H-indene-1-carboxylic acid 2 is described. Different pyranonaphthoquinone derivatives, obtained in our previous synthetic work, were screened for antimycobacterial (Mycobacterium tuberculosis) activity and against resistant strains of Gram-positive (Bacillus cereus and Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria. The results indicated significant activity of all the tested samples against M. tuberculosis and only moderate activity against the Gram-positive and Gram-negative bacteria.