Naphthalene Aglycones and Glycosides from the Australian Medicinal Plant, Dianella callicarpa
Daniel Anthony Dias, Claudio Andres Silva, Sylvia Urban
PLANTA MEDICA | GEORG THIEME VERLAG KG | Published : 2009
The crude extract of the roots from the Australian medicinal plant Dianella callicarpa (Liliaceae) displayed significant antimicrobial and antiviral activities. This prompted a chemical investigation, resulting in the isolation of the new naphthalene glycoside, dianellose (10), together with dianellin (1), dianellidin (2), dianellinone (3), stellalderol (9) and 5-hydroxydianellin (11). The structures for compounds 1, 9 and 10 were secured by detailed spectroscopic analyses, while compounds 2, 3 and 11 were identified on the basis of comparisons to literature data. Whilst the chemistry of the genus Dianella has previously been investigated, we report the first isolation of stellalderol (9) fr..View full abstract
The Marine And Terrestrial NAtural Product (MATNAP) research group thanks Mr. Geoffrey Carr (Director & Senior Botanist at Ecology Australia) for providing a reevaluation of the plant species and for providing the correct taxonomic classification of the plant specimen; Ms. Sally Duck (School of Chemistry, Faculty of Science, Monash University) for high resolution mass spectrometry analyses; Ms. G. Ellis (University of Canterbury, Christchurch, New Zealand) for the biological testing and the award of an Australian Postgraduate Award (APA) scholarship.