Synthesis of dihydroisorcordoin derivatives and their in vitro anti-oomycete activities
2019
Montenegro, Iván | Madrid Zan, Alejandro
A series of novel dihydrochalcone derivatives 2–7 were synthesized from dihydroisorcordoin 1 which was isolated from the aerial parts of Adesmia balsamica. The structures of all compounds were confirmed by ¹H NMR, ¹³C NMR, and HRMS. Their anti-oomycete activity was evaluated in vitro against Saprolegnia parasitica and Saprolegnia diclina. Some of the newly synthesized compounds exhibited better anti-oomycete activities at low values compared with bronopol and fluconazole as positive controls. Among them, compound 7 exhibited strong activity, with minimum inhibitory concentration and minimum oomyceticidal concentration values of 75 and 100 μg/mL, respectively.
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