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Novel marine sponge alkaloids. 1. Plakinidine A and B, anthelmintic active alkaloids from a Plakortis sponge

✍ Scribed by Inman, Wayne D.; O'Neill-Johnson, Mark; Crews, Phillip


Book ID
120533970
Publisher
American Chemical Society
Year
1990
Tongue
English
Weight
472 KB
Volume
112
Category
Article
ISSN
0002-7863

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Plakoridine C, a novel piperidine alkalo
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A new piperidine alkaloid plakoridine C (1) has been isolated from an Okinawan marine sponge Plakortis species, and the structure was elucidated from spectroscopic data. Plakoridine C ( ) is a new alkaloid possessing a piperidine ring connected to a b-keto-c-lactone through a double bond.

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Keramamine-A and -B, two new B-carboline alkaloids with a 13 membered ring have been isolated from the Okinawan marine sponge Pellina sp. as antimicrobial substances and the structures of keramamine-A and -B have been determined by X-ray analysis and by spectral and chemical means, respectively. As