Journal
TETRAHEDRON LETTERS
Volume 52, Issue 23, Pages 3041-3044Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2011.04.005
Keywords
Pyridoacridine; Cystodytes dellechiajei; Ascidian
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Funding
- ECIMAR [ANR-06-BDIV-001-04]
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Two new pyridoacridine alkaloids, 13-didemethylaminocycloshermilamine D (1) and demethyldeoxyamphimedine (2), were isolated from the purple chromotype of the Western Mediterranean ascidian Cystodytes dellechiajei. This morph also contained the known shermilamine B (3), kuanoniamine D (4), N-deacetylshermilamine B (5), N-deacetylkuanoniamine D (6), styelsamines C (7), and D (8). The structures of new compounds were elucidated on the basis of spectroscopic data. A hypothetic biosynthetic pathway from the tetracyclic styelsamine D (8) was proposed for both compounds 1 and 2 and their antimicrobial potential was evaluated. (C) 2011 Elsevier Ltd. All rights reserved.
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