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Anticyanobacterial phenolic constituents from the aerial parts of Eupatorium fortunei Turcz

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posted on 2018-05-21, 11:11 authored by Thanh Nga Pham, Huu Dien Pham, Dinh Kim Dang, Thi Thuy Duong, Thi Phuong Quynh Le, Quang Duong Nguyen, Dat Nguyen Tien

Four thymol derivatives and two phenolic compounds were isolated from the aerial parts of Eupatorium fortunei. The new structures were elucidated to be 7,8,9-trihydroxythymol (1), and 8,10-didehydro-7,9-dihydroxythymol (2) by means of MS and NMR analysis. The known compounds were identified as 8,9,10-trihydroxythymol (3), 10-acetoxy-8,9-dihydroxythymol (4), o-coumaric acid (5) and 4-(2-hydroxyethyl)benzaldehyde (6). Compound 3 showed strongest inhibitory effect on the growth of Microcystis aeruginosa in comparison with CuSO4.

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