Three new tritetpenoids, sodwanones A-C (l-3) have been isolated from the sponge Arineflo welryp. The structure of compound 1 was unambrguously determmed by X-ray drffractton studtes. All H and C-NMR resonances of 1 were assigned by an extensive use of 1D and 2D NMR techniques. The structure of 2 an
Muqubilin, a new c24-isoprenoid from a marine sponge
β Scribed by Y. Kashman; M. Rotem
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- French
- Weight
- 157 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
The Red Sea sponge Prianos sp. contains a cyclic peroxide C~I, -nor sesterterpene, Muqubilin (g)
The structure of 4 was deduced from spectroscopic data and by chemical degradation.
In our continuing search for physiologically active marine metabolites we have isolated from a brown sponge of the genus Prianosl , collected at Marsa el Muqubila in the Gulf of Eilat, on the Red Sea, four closely related C24-isoprenoids which represent a new type of C24 nor sesterterpenes.
Structure A, which we have named muqubilin has been assigned to the major constituent of the new compounds.
π SIMILAR VOLUMES
Two new steroidal alkaloids 3o~-amino-23,29-imino-B(9a)-homo-19-nor-5ot-stigmasta-1(10),7,9(11),23(N)-tetraene (1) and 3o~-amino-23,29-imino-B(9a)-homo-19-nor-5ot-stigmastal(10),7,23(N)-triene (2) have been isolated from a Pacific marine sponge Corticium sp. The structures of compounds 1 and 2 were