[Structural traits of the antioxidant and fungicidal activity of steroid glycosides].
To investigate the origin of antioxidant and antifungal properties of steroid glycosides (SG), a logico-structural analysis of the structure-activity relationships has been performed for 70 compounds using a set of computer programs STRAC. The following structural features responsible for antioxidant activity are revealed: 1) furostanol type of aglycon; 2) the presence of more than 4 branched monosaccharides in the carbohydrate chain; 3) the presence of glucose at C26 and OH-groups in the genin part of SG. Most characteristic for antifungal activity is the fragment genin-C3-Gal-Glc-Glc-Rha..., as well as the spirostanol type of aglycon. The computer analysis provided the basis for predicting a type of biological activity for 12 new compounds of the SG class.
D000935:Antifungal Agents; D000975:Antioxidants; D005659:Fungicides, Industrial; D006027:Glycosides / Q000494:pharmacology*; D008968:Molecular Conformation; D011379:Prognosis; D012984:Software; D013256:Steroids / Q000494:pharmacology*; D013329:Structure-Activity Relationship
D000935:Antifungal Agents; D000975:Antioxidants; D005659:Fungicides, Industrial; D006027:Glycosides; D013256:Steroids
Strukturnye priznaki antioksidantnoĭ i fungitsidnoĭ aktivnosti steroidnykh glikozidov.