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Antifungal Activities Of Different Extracts And Echimidine-N-Oxide From Symphytum Sylvaticum Boiss. Subsp. Sepulcrale (Boiss. & Bal.) Greuter & Burdet Var. Sepulcrale, Murat Kartal, Semra Kurucu, Muhammad I. Choudary
Antifungal Activities Of Different Extracts And Echimidine-N-Oxide From Symphytum Sylvaticum Boiss. Subsp. Sepulcrale (Boiss. & Bal.) Greuter & Burdet Var. Sepulcrale, Murat Kartal, Semra Kurucu, Muhammad I. Choudary
Turkish Journal of Medical Sciences
Antifungal activity was determined by the tube dilution method on different extracts of Symphytum sylvaticum Boiss. subsp. sepulcrale (Boiss. & Bal.) Greuter & Burdet var. sepulcrale. The antifungal activity of the isolated compound from the root alkaloid fraction (Echimidine-N-Oxide) was also tested against ten fungal cultures. The activity was found to be mainly due to Echimidine-N-Oxide (ENO). The quantitative determination of ENO was also carried out with capillary gas chromatography in the roots and the aerial parts of the plant.
Qsars Of Some 5- Or 6-Methyl-2-Substituted Benzoxazoles/Benzimidazoles Against Candida Albicans, Özlem Temi̇z Arpaci
Qsars Of Some 5- Or 6-Methyl-2-Substituted Benzoxazoles/Benzimidazoles Against Candida Albicans, Özlem Temi̇z Arpaci
Turkish Journal of Medical Sciences
QSAR analysis of some 5- or 6-methyl-2-substituted benzoxazoles/ benzimidazoles was studied for the antifungal activity against C. albicans using Hansch analysis. Prediction for the lead optimization in this QSAR analysis was described by the description of various hydrophobic, electronic, steric and structural parameters related to positions R_1, R_2, R_5, R_6, X, Y. The cross-validation method was also applied to the data set in order to prove the predictive power by using the BILIN statistical software. The resulting QSAR revealed that substitution at position Y with the CH_2 group was significant for the improved antifungal activity. Moreover, hydrophobic properties of the …