Abstract

The synthesis of some 1-oxygenated derivatives of murrayafoline A (1) and their antifungal properties is reported. Three derivatives, 1-hydroxy-3-methyl-9H-carbazole (2), 1-(3-methylbut-2-enyloxy)-3-methyl-9H-carbazole (3) and 1-(2,3,4,6,-tetra-O-acetyl-α-D-O-glucopyranosyl)-3-methyl-9H-carbazole (4), of murrayafoline A were synthesized. Compounds 1 and 2 exhibit strong fungicidal activity against Cladosporium cucumerinum at the dose of 12.5 µg.

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