Abstract
The lichen Anaptychia fusca and several Stereocaulon species have been chemically investigated with regard to their content of unknown ninhydrin-positive com pounds. New aliphatic and alicyclic, amino components isolated from water extracts of these lichen species have been characterised as aminopentitol, am inohexitol and aminocyclitetrol. To our knowledge, this is the first time that com pounds such as these have been found in lichen material. Aminopentitol and amino cyclitetrol appear to be characteristic constituents of Anaptychia fusca, whereas aminohexitol has been found in several species of Stereocaulaceae.
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