Cipadesins A−C: Novel Tetranortriterpenoids from Cipadessa cinerascens
Authors:
- 29 September 2005
- journal article
- research article
- Published by American Chemical Society (ACS) in Organic Letters
- Vol. 7 (22) , 5051-5053
Abstract
Three novel tetranortriterpenoids, cipadesins A−C (1−3), were isolated from the aerial parts of Cipadessa cinerascens. They possess a novel carbon skeleton, in which rings A and C were joined via C-10 and C-11. Their structures were elucidated by spectral evidence. X-ray crystallographic analysis confirmed the structure of 1.Keywords
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