## Abstract Together with five known sesquiterpenes, EtOH extraction of __Laurencia saitoi__ yielded four new compounds, including three sesquiterpenes and one norsesquiterpene derivative. Their structures and relative configurations were elucidated by spectroscopic methods, including 1Dβ and 2DβNM
Indole alkaloids from the marine red alga Martensia fragilis
β Scribed by Michael P. Kirkup; Richard E. Moore
- Book ID
- 104217301
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- French
- Weight
- 204 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
The gross structures of fragilamide and martensines A and B, the first basic indole alkaloids to be isolated from a marine eukaryotic plant, are reported. Martensia fragilis, a red alga belonging to the family Delesseriaceae, has a foul odor reminiscent of skatole.
π SIMILAR VOLUMES
## Abstract Three new polybrominated 1__H__βindoles, compounds **1**β**3**, and three new aristolane sesquiterpenes, compounds **4**β**6**, were isolated from the marine red alga __Laurencia similis__, together with seven known natural products. Their structures were elucidated on the basis of deta
Several halogenated indole derivatives have been isolated from marine molluscs,l sponges,2 and hemichordates. z In screening New Zealand marine algae for antimicrobial activity, the crude extract of Rhodophyllis membranacea Harvey was noted to possess strong antifungal activity. This activity is due