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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1990-9-10
pubmed:abstractText
Australian frogs of the genus Pseudophryne contain two distinct classes of alkaloids. The pseudophrynamine class (3a-prenyl pyrrolo[2,3-b]indoles) are unique to this genus of frogs of the family Myobatrachidae, while the pumiliotoxin-A class (8-hydroxy-8-methyl-6-alkylidene-1-azabicyclo[4.3.0]nonanes) also occur in dendrobatid frogs of the genera Dendrobates, Epipedobates, and Minyobates, in ranid frogs of the genus Mantella, and in bufonid toads of the genus Melanophryniscus. All seven species of Pseudophryne examined contain both classes of alkaloids. The pseudophrynamines were the predominant class in both species (Pseudophryne guentheri and Pseudophryne occidentalis) from Western Australia, while all of the eastern species (Pseudophryne australis, Pseudophryne bibronii, Pseudophryne coriacea, Pseudophryne corroboree, and Pseudophryne semimarmorata) contained significant amounts of both pseudophrynamines and pumiliotoxins. Pumiliotoxins, in particular pumiliotoxin B, were predominant in two eastern species (P. australis and a southern population of P. corroboree), while pseudophrynamines were dominant in P. bibronii, four of six populations of P. coriacea, one population of P. semimarmorata, and a northern population of P. corroboree. Structures are proposed for several new alkaloids of the pseudophrynamine class.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0163-3864
pubmed:author
pubmed:issnType
Print
pubmed:volume
53
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
407-21
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:articleTitle
Alkaloids from Australian frogs (Myobatrachidae): pseudophrynamines and pumiliotoxins.
pubmed:affiliation
Laboratory of Bioorganic Chemistry, National Institute of Diabetes, and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892.
pubmed:publicationType
Journal Article