Solution-phase synthesis of novel Δ2-isoxazoline libraries via 1,3-dipolar cycloaddition and their antifungal properties
作者:Basappa、M.P. Sadashiva、K. Mantelingu、S.Nanjunda Swamy、K.S. Rangappa
DOI:10.1016/j.bmc.2003.08.007
日期:2003.10
The synthesis of novel imidazolyl substituted delta(2)-isoxazoline libraries are currently of high interest. We report here in the full details of a study leading to the synthesis and antifungal activities of 3-(-2-butyl-4-chloro-1H-imidazolyl)-substituted delta(2)-isoxazolines. The solution phase synthesis of the title compounds was accomplished via 1,3-dipolar cycloaddition of in situ generated nitryl oxides from aldoximes with mono substituted alkenes to obtain the compound libraries contain an imidazole functionality in addition to the isoxazoline rings. The newly synthesized compounds when tested in vitro in solid agar culture exerted a potent antifungal activity against Aspergillus flavus, Fusarium moniliforme and Botrydiplodia theobromae also MIC values were determined. The title 5-substituted-3-imidazolyl-delta(2)-isoxazoline compounds represent a novel class of potent antifungal agents. (C) 2003 Elsevier Ltd. All rights reserved.