Natural Products for Biocides Discovery: Discovery of Arundine and It’s Derivatives as Novel Antiviral and Anti-Phytopathogenic-Fungus Agents
作者:Ziwen Wang、Qingmin Wang、Ancai Liao、Shengli Jin
DOI:10.3987/com-19-14192
日期:——
Plant diseases are one of the natural disasters that seriously harm agricultural production, and it is very difficult to control. The discovery of new antiviral and antifungal lead compounds becomes more and more important. Natural product arundine was found to have anti-tobacco mosaic virus (TMV) activity and anti-phytopathogenic-fungus activity for the first time. A series of arundine analogues were designed, synthesized and evaluated for their antiviral and fungicidal activities. Compound 6 with excellent antiviral activity emerged as novel antiviral lead compound. Compound 7 with 12.6-38.3 mu g/mL EC50 values against 14 plant pathogens emerged as novel antifungal lead compound. This work laid a foundation for promoting the application of arundine analogues in plant protection.
A new class of bactericidal agents against S. aureus, MRSA and VRE derived from bisindolylmethane
作者:Deepak K. Sharma、Anil K. Tripathi、Rashmi Sharma、Reena Chib、Reyaz ur Rasool、Altaf Hussain、Baldev Singh、Anindya Goswami、Inshad A. Khan、Debaraj Mukherjee
DOI:10.1007/s00044-013-0764-4
日期:2014.4
A series of bisindolylmethanes (BIMs) (1a-7j) including hybrid BIMs 6a-6c were prepared for bioevaluation. The results of initial antimicrobial screening of compounds 1a-6c showed compounds 2b, 2m, 4a and 5b to be the most potent inhibitors, exhibiting MIC as well as MBC values equal to or less than that of ciprofloxacin (0.5-2 mu g/mL) against Staphylococcus aureus, MRSA and VRE. Compound 2m was selected further to study the effect of N,N' disubstitution towards antibacterial and antitumor activity. It was observed that substitution at N,N' position (7a-7j) of 2m diminishes its antibacterial activity though in vitro antitumour activity against a panel of prostate, cervical and lung cancer cell lines remains more or less intact.
Amberlyst‐Catalyzed Reaction of Indole: Synthesis of Bisindolylalkane
作者:Bowen Ke、Yong Qin、Yin Wang、Fengpeng Wang
DOI:10.1081/scc-200054794
日期:2005.5
Amberlyst was found to be an effective catalyst for the condensation reactions of indoles 2 with aldehydes 3 to afford bisindolylalkanes 1 in good to excellent yields.
A Simple Single-Step Synthesis of Bis(indolyl)methane using Polyaniline-Supported Graphene Oxide Nanocomposites as Catalysts
作者:Sandip Mule、C S Patil、Dattatraya Pansare
DOI:10.14233/ajchem.2023.28259
日期:——
A novel approach for synthesizing bis(indolyl)methanederivatives (3a-k) through the reaction of aromatic aldehyde and 5-bromo indole in ethanol is presented. The reaction utilizes a heterogeneouscatalyst composed of polyaniline supported grapheneoxide, which offersenvironmental benefits. Advantages of the approach over previously described methods include a shorter reaction time, milder reaction