Anthocercis littorea

If any Tl-type alkaloids occur in a specific taxon, there may be present between only one metabolite (e.g., Anthocercis littorea) and up to six congeners of this type [e.g., Cyphanthera albicans, Hyoscyamus pusillus (4) Datura inoxia (5) Duboisia myoporoides (6)]. Such alkaloids are normally accompanied by one or more different types of tropane alkaloids (T3 - T6 Schizanthoideae T7-D), e.g., alkaloid extracts obtained from the leaves of Duboisia leichhardtii contained hyoscyamine as the principal component accompanied by minor congeners like scopolamine (hyoscine) as well as different Tl-type esters (e.g., butropine, valtropine). Both latter... 

Evans WC, Somanabandhu A (1980) Nitrogen-containing non-steroidal secondary metabolites of Solanum, Cyphomandra, Lycianthes and Margaranthus. Phytochemistry 19 2351-2356 Evans WC, Treagust PG (1973a) Distribution of alkaloids in Anthocercis littorea and A. viscosa. Phytochemistry 12 2505-2507... 

Plate la Anthocercis littorea (yellow tailflower) erect or rarely sprawling shrub... 

A few new alkaloids have been isolated during investigations on Australasian plants. The major alkaloid of two Australian shrubs, Anthocercis viscosa R. Br. and A. fasciculata F. Muell. (fam. Solanaceae), has been identified as (—)-hyo-scyamine. The same base (partly racemic) is one of the seven alkaloidal constituents of A. littorea Labill. another is meteloidine. The major alkaloid, however, is littorine, which has been identified as R-(—)-3a-(2-hydroxy-3-phenylpro-pionyloxy)tropane (1). The isolation of tropane alkaloids from the Anthocercis species justifies the inclusion of this genus in the Solanaceae previously it had been included in the Scrophulariaceae but had recently been transferred to the Solanaceae on botanical grounds. Recently, littorine has also been isolated from Datura sanguinea R. and P. ... 

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