New and Uncommon Indole- and Imidazole-Alkylamines in Skins of Amphibians from Australia and Papua New Guinea
Open Access
- 1 April 1976
- journal article
- research article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung C
- Vol. 31 (3-4), 118-120
- https://doi.org/10.1515/znc-1976-3-403
Abstract
Extracts of the skin of some amphibians from Australia and Papua New Guinea contained, in addition to the usual 5-hydroxyindolealkylamines and histamine, 2 new indolealkylamines, i.e., O-sulfate of bufotenidine and 2-(3-indolyl)ethyltrimethylammonium, a quaternary ammonium base of tryptamine. The rare O-sulfate of bufotenine was also present, the occurrence of which was previously demonstrated only in the skin of some South American toads; a series of uncommon imidazolealkylamines, such as N''-acetylhistamine, N''-methylhistamine, N'',N''-dimethylhistamine, spinaceamine and 6-methylspinaceamine. Amphibian skin continues to be an exceptionally rich source of aromatic amines.Keywords
This publication has 3 references indexed in Scilit:
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- Indole-, imidazole-, and phenyl-alkylamines in the skin of thirteen Leptodactylus speciesBiochemical Pharmacology, 1964
- The identification of new histamine derivatives in the skin of leptodactylusArchives of Biochemistry and Biophysics, 1964