Bioactive friedolanostanes and 11(10→8)-abeolanostanes from the bark of Garcinia speciosa

• Main Authors: Vieira L.M.M., Kijjoa A., Wilairat R., Nascimento M.S.J., Gales L., Damas A.M., Silva A.M.S., Mondranondra I.-O., Herz W.
• Format: Article
• Language: English
• Published: 2014
• Online Access: http://www.scopus.com/inward/record.url?eid=2-s2.0-11844273863&partnerID=40&md5=23ff2a39c79f4581f7a4f5c4570af0ac; http://cmuir.cmu.ac.th/handle/6653943832/4634
• Institution: Chiang Mai University

A new friedolanostane, 7, and three triterpenes, 8, 9a, and 10, possessing the new 11(10-8)-abeolanostane carbon skeleton were isolated from the bark of Garcinia speciosa. Structures were elucidated by spectroscopic and spectrometric studies and the structure of 8 by X-ray crystallographic analysis,...