New bromopyrrole alkaloid from the marine sponge Agelas wiedenmayeri

Organic Letters

Volumn 1, Issue 3, 1999, Pages 455-457

  Assmann, Michael ^a   Lichte, Ellen ^a   Van Soest, Rob W M ^b   Köck, Matthias ^a  

^a GOETHE UNIVERSITY   (Germany)

^b UNIVERSITY OF AMSTERDAM   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000933149     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol990664h     Document Type: Article

References (30)

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7. The consistency of the specimen is firm, and the skeleton offers a well-developed rectangular reticulation of spongin fibers. Primary fibers follow a straight course over large distances, they are about 40-60 μm in diameter and are cored throughout the skeleton by 2-7 spicules in cross section. Secondary fibers connect the primaries at right angles; their diameter is on the average slightly less than that of the primaries, up to about 50 μm, and they are usually uncored. Both primary and secondary fibers are irregularly echinated, in some places frequently with distances of less than 50 μm between the spicules, in other places echinating spicules are rare. Meshes elongate; sizes vary 150-350 × 50-250 μm; spicule sizes, 95-140 × 4-8 μm, with 9-13 whorls of spines. These data conform closely to the description of Alcolado's type.
8. 254 (E. Merck, Darmstadt, Germany) using the same solvent system.
9. LiChrosorb RP-select B (7 μm), 25 × 250 mm; E. Merck, Darmstadt, Germany.
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