| Structure Identification: |
| J Nat Prod. 2000 May;63(5):688-9. | | 10-Hydroxydarlingine, a new tropane alkaloid from the Australian proteaceous plant triunia erythrocarpa.[Pubmed: 10843590] |
METHODS AND RESULTS:
Triunia erythrocarpa was identified as containing alkaloids during chemical screening of Queensland Proteaceae using Dragendorff's reagent. A new tropane, 10-hydroxyDarlingine (1), and the known tropane, Darlingine (2), were isolated from the leaves of T. erythrocarpa.
CONCLUSIONS:
The absolute stereochemistry of 10-hydroxyDarlingine (1) was assigned using the advanced Mosher method. T. erythrocarpa is only the seventh member of the Proteaceae to have been shown to produce alkaloids. | | Phytochemistry,1999,52(3):529–531. | | Tropane alkaloids from Darlingia darlingiana[Reference: WebLink] |
METHODS AND RESULTS:
A new γ-pyranotropane, Darlingine N-oxide, was isolated from the bark and leaves of Darlingia darlingiana, along with the known compound, Darlingine. 1D-NOESY NMR experiments indicated that the N-methyl groups of both alkaloids were orientated towards the pyran ring. | | Australian Journal of Chemistry , 1979 , 32 (8) :1827-1840 | | Alkaloids of Bellendena montana[Reference: WebLink] | Fourteen alkaloids have been isolated from Bellendena montana, a monotypic proteaceous plant endemic in Tasmania.
METHODS AND RESULTS:
The structures of ten of these, bellendine (1), isobellendine (2), Darlingine (3),5,11-dihydroisobellendine (5), 2,3-dihydrobellendine (6), 2,3-epidihydrobellendine (7), 2,3-dihydroDarlingine(8), 3α-acetoxy-6β-isobutoxytropane (9), 6β-acetoxy-3α-isobutoxytropane (10) and 3α-acetoxy-6β-hydroxytropane (11), have been established. |
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