Close the ring to break the cycle: tandem quinolone-alkyne-cyclisation gives access to tricyclic pyrrolo[1,2-<i>a</i>]quinolin-5-ones with potent anti-protozoal activity
作者:Dávid Szamosvári、Kayla Sylvester、Philipp Schmid、Kuan-Yi Lu、Emily R. Derbyshire、Thomas Böttcher
DOI:10.1039/c9cc01689a
日期:——
We describe a tandem reaction leading to tricyclic pyrrolo[1,2-a]quinolin-5-ones with unique selectivity against the liver stage of the malaria parasite.
An Unsaturated Quinolone<i>N</i>-Oxide of<i>Pseudomonas aeruginosa</i>Modulates Growth and Virulence of<i>Staphylococcus aureus</i>
作者:Dávid Szamosvári、Thomas Böttcher
DOI:10.1002/anie.201702944
日期:2017.6.12
which belong to the class of 2‐alkyl‐4‐quinolone N‐oxides (AQNOs) with various chain lengths and degrees of saturation. We present the first synthesis of a previously proposed unsaturated compound that is confirmed to be present in culture extracts of P. aeruginosa, and its structure is shown to be trans‐Δ1‐2‐(non‐1‐enyl)‐4‐quinolone N‐oxide. This compound is the most active agent against S. aureus, including
COMPOUND FOR USE AGAINST PATHOGENIC NEISSERIA AND HAEMOPHILUS SPECIES AND MORAXELLA CATARRHALIS
申请人:Universität Konstanz
公开号:EP3502095A1
公开(公告)日:2019-06-26
The present invention relates to a compound, which can be used in the prevention and treatment of infections with pathogenic Neisseria species, in particular N. gonorrhoeae and N. meningitidis (the gonococcus and the meningococcus, respectively), and other pathogenic bacteria (e.g. Haemophilus species or Moraxella catarrhalis ), and which can be used for disinfecting a substrate from said bacteria. Moreover, the present invention relates to a corresponding pharmaceutical composition comprising said compound.
of the synthesis allowed for the preparation of novel carboxamide analogs of the natural product. An agar diffusion assay against six different bacterial strains revealed significant antibacterialactivity of the novel analogs against S. aureus at a concentration of 100 µg/mL. One of the novel compounds showed a remarkably broad spectrum of antibacterialactivity, comparable to that of the positive