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Two new furopyrans, named chenopodolans E and F (1 and 2), were isolated from the liquid culture of Phoma chenopodiicola, a fungal pathogen proposed for the biological control of Chenopodium album, a common worldwide weed of arable crops. They were characterized using spectroscopic methods as 3-(3-methoxy-2,6-dimethyl-7aH-furo[2,3b]pyran-4-yl)-but-2-enoic acid methyl ester and 1-(3-methoxy-2,6-dimethyl-7aH-furo[2,3b]pyran-4-yl)-ethanone,...
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