Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5133767 | Food Chemistry | 2017 | 6 Pages |
â¢Selective oxidation of zerumbone to an aldehyde and a ketone with added conjugated-carbonyl-functionality is discovered.â¢Zerumbal and zerumbenone exhibited strong antimutagenic activity and good antibacterial activity.â¢An important perspective of the new derivatives is outlined.
Synthesis of new zerumbone-bicarbonyl analogues by SeO2 oxidation is reported. Selective oxidation of methyl at C-13 to an aldehyde and a ketone with exo-cyclic double bond between C-13 and C-6 in zerumbone has been recognized. Both these compounds have an additional conjugated-carbonyl-functionality. They exhibited significantly higher antimutagenic activity than zerumbone against Salmonella tester strains. They are more active against Gram positive bacteria than Gram negative bacteria; however zerumbone showed highest activity against E. coli, whereas its derivatives were least effective against E. coli.