Keikipukalides, Furanocembrane Diterpenes from the Antarctic Deep Sea Octocoral Plumarella delicatissima

Autor: Santana A. L. Thomas, Jacqueline L. von Salm, Steve Ferlita, Christopher A. Rice, Nerida G. Wilson, Ala Azhari, Dennis E. Kyle, Prasanth Nemani, Bill J. Baker, Shane Clark
Rok vydání: 2017
Předmět:
Zdroj: Journal of Natural Products
ISSN: 1520-6025
0163-3864
DOI: 10.1021/acs.jnatprod.7b00732
Popis: During a 2013 cruise in the Southern Ocean we collected specimens of the octocoral Plumarella delicatissima between 800 and 950 m depth. Five new furanocembranoid diterpenes, keikipukalides A-E (1-5), the known diterpene pukalide aldehyde (6), and the known norditerpenoid ineleganolide (7) were isolated from the coral. These Plumarella terpenes lack mammalian cytotoxicity, while 2-7 display activity against Leishmania donovani between 1.9 and 12 μM. Structure elucidation was facilitated by one- and two-dimensional NMR spectroscopy and mass spectrometry, and keikipukalides A and E were confirmed by X-ray crystallography.
Databáze: OpenAIRE