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Rhopaladins A ∼ D, new indole alkaloids from marine tunicate Rhopalaea sp

✍ Scribed by Hiroyasu Sato; Masashi Tsuda; Kenji Watanabe; Jun'ichi Kobayashi

Publisher
Elsevier Science
Year
1998
Tongue
French
Weight
272 KB
Volume
54
Category
Article
ISSN
0040-4020

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✦ Synopsis

Four new bis(indole) alkaloids, rhopaladins A ~ D (1 ~ 4), have been isolated from the Okinawan marine tunicate Rhopa/aea sp. and the structures were elucidated on the basis of spectroscopic data. The presence of two rotational isomers (3a and 3b) of 3 was deduced from NOESY data and molecular calculation using Macromodel program.

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