| Literature DB >> 12398539 |
Wilhelm Haas1, Heinz Sterk, Martin Mittelbach.
Abstract
Six unstable intramolecular diterpene esters were isolated from the seed oil of Jatropha curcas. Five of these, Jatropha factors C(2)-C(6) (3-7), are new natural products, and the structure of the known Jatropha factor C(1) (2) has been revised. All compounds possess the same diterpene moiety, namely, 12-deoxy-16-hydroxyphorbol (1). The dicarboxylic acid moieties of 2-5 contain a bicyclo[3.1.0]hexane unit, and those of 6 and 7 a cyclobutane unit, which is described for the first time within this compound class. Compounds 4 and 5 are C-8' epimers. The structures of 2-7 were elucidated by spectroscopic methods and give an insight into the biogenesis of the characterized substances.Entities:
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Year: 2002 PMID： 12398539 DOI： 10.1021/np020060d
Source DB: PubMed Journal: J Nat Prod ISSN： 0163-3864 Impact factor: 4.050