104682-97-5Relevant articles and documents
A Modified ToxT Inhibitor Reduces Vibrio cholerae Virulence in Vivo
Woodbrey, Anne K.,Onyango, Evans O.,Kovacikova, Gabriela,Kull, F. Jon,Gribble, Gordon W.
, p. 5609 - 5615 (2018)
We have previously designed and synthesized small-molecule inhibitors that reduce Vibrio cholerae virulence in vitro by targeting the transcription factor ToxT. Here we report the synthesis and biological activity of derivatives of our previous bicyclic, fatty acid-like inhibitors. All of the synthesized derivatives show antivirulence activity in vitro. For the most potent compounds, a concentration of 5 μM completely inhibited ToxT-mediated tcpA expression as measured in the β-galactosidase assay. One indole compound, 3-(1-butyl-1H-indol-7-yl)propanoic acid (8), was also effective at inhibiting intestinal colonization in the infant mouse. These modified compounds may serve as good candidates for further anti-cholera drug development.
Rhodium-Catalyzed Regioselective C7-Functionalization of Indole Derivatives with Acrylates by Using an N-Imino Directing Group
Xu, Lanting,Tan, Lushi,Ma, Dawei
, p. 2839 - 2844 (2017)
An efficient rhodium-catalyzed method for C-H olefination at the C7 position of indoles has been developed. The N-imino directing group was shown to be crucial for high regioselectivity and reactivity of the metal catalyst. The utility of this protocol was further demonstrated through a concise, four-step synthesis of pyroquilon from indole.
Sulfur-Directed C7-Selective Alkenylation of Indoles under Rhodium Catalysis
Kona, Chandrababu Naidu,Nishii, Yuji,Miura, Masahiro
supporting information, p. 6252 - 6256 (2021/08/30)
Regioselective direct functionalization of an indole benzenoid fragment has been a significant challenge because of its inherently lower reactivity. In this report, we introduce a Rh-catalyzed C7-selective alkenylation of indole derivatives using a new sulfur directing group N-SCy. A notable feature of this system is that the directing group is readily installed to the indoles and easily removed after the catalysis under mild conditions.