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Reinvestigation of the aerial parts of Vernonanthura squamulosa afforded a known and a new glaucolide, and eleven hirsutinolides of which five are new.
Aerial parts of Vernonanthura pinguis contained nine known and five new glaucolides, two known and five new hirsutinolides, two new 1-deoxyhirsutinolides, one vernomargolide analogue and one eudesmanolide. The possibility that the hirsutinolides are artifacts of the isolation procedure is discussed.
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