Synthesis and Biological Activity of 1<i>H</i>-Pyrrolo[2,3-<i>b</i>]pyridine Derivatives: Correlation between Inhibitory Activity against the Fungus Causing Rice Blast and Ionization Potential
作者:Satoshi Minakata、Takayuki Hamada、Mitsuo Komatsu、Hiroyuki Tsuboi、Hiroshige Kikuta、Yoshiki Ohshiro
DOI:10.1021/jf9607730
日期:1997.6.1
Synthesis and biological activity of a variety of 3- and B-substituted 1H-pyrrolo[2,3-b]pyridine (7-azaindole) derivatives are described. Many of the synthesized 7-azaindoles exhibited considerable fungicidal activity toward Pyricularia oryzae, a fungus which causes rice blast, in vivo. When quantum parameters of the tested 7-azaindoles were evaluated by semiempirical molecular orbital calculations, a relationship was observed between the activity and the calculated ionization potentials of the 7-azaindole derivatives.