Cyclic hemiketals from the sponge Raspailia (Raspaxilla) sp
✍ Scribed by Carlos M. Cerda-García-Rojas; D. John Faulkner
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- French
- Weight
- 251 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0040-4020
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Three novel nitrogen-containing metabolites, asmarines A-C (1 -3) together with two known diterpenes, zaatirin and chelodane were isolated from the Red Sea sponge Raspailia sp. collected in the Dahlak archipelago, Eritrea. The structure of the three new compounds and the known zaatirin and chelodane
We loosely use here the term 'higher polarity' to mean a higher retention time on silica-gel chromatography. For convenience, id1 raspailynes and derivatives thereof are numbered as shown in the Formulae 1-14 Systematic names are given in the Summary and Exper. Part. ## ') Likely, the absolute co
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