Three new naphthoquinones from the tubers of Sinningia mauroana.
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DOI: 10.1080/14786419.2021.1969564
Abstract: Three new naphthoquinones, 5,6,7-trimethoxydunnione (1), 6,7-dimethoxy-α-dunnione (2), and 5,6,7-trimethoxydunniol (3) were isolated from the tubers of Sinningia mauroana Chautems, together with eleven known compounds: 5-hydroxy-6,7-dimethoxy-α-dunnione (4), 6-hydroxy-7-methoxy-α-dunnione (5), 7-hydroxy-6-methoxy-α-dunnione (6), cedrol (7), tectoquinone (8), plantainoside… read more here.
Keywords: tubers sinningia; antioxidant capacity; three new; sinningia mauroana ... See more keywords