61610-25-1Relevant articles and documents
Quantitative Structure-Activity Relationships for Antifungal 3-(3,5-Dichlorophenyl)-2,4-imidazolidinediones
Takayama, Chiyozo,Kirino, Osamu,Hisada, Yoshio,Fujinami, Akira
, p. 1547 - 1552 (2007/10/02)
The antifungal activity of 44 1-acyl derivatives of 3-(3,5-dichlorophenyl)-2,4-imidazolidinedione against Botrytis cinerea, and of 10 1-sulfonyl compounds against Alternaria kikuchiana were assayed by the agar medium dilution method.The structure-activity relationships for the substituents of the acyl and sulfonyl moieties were analyzed with such physicochemichal parameters as hydrophobic ?, inductive electronic ?1, and steric Es'c and B1 values by multiple regression.The activity of the acyl derivatives against B. cinerea was related parabolically to the hydrophobicity of the substituents.The stronger the electron-donating power, the larger the overall steric bulkiness, and the smaller the minimum width in the direction perpendicular to the bond axis of the substituents, the greater was the activity.The activity of the sulfonyl derivatives against A. kikuciana was related only to the hydrophobicity of the substituents.