Results 41 to 50 of about 918 (174)
Tetrahydrofuran Cembranoids from the Cultured Soft Coral Lobophytum crassum [PDF]
Marine Drugs, 2011 Three new cembranoids, culobophylins A–C (1–3), along with two known compounds (4 and 5) were isolated from the cultured soft coral Lobophytum crassum. The structures of these compounds were elucidated on the basis of their spectroscopic data and comparison of the NMR data with those of known analogues.
Nai-Lun Lee, Jui‐Hsin Su
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Conformational studies on some tobacco cembranoids [PDF]
Acta Crystallographica Section A Foundations of Crystallography, 1984 Jan-Eric Berg, Inger Wahlberg
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Klyflaccilins B‐T, Polyoxgenated Eunicellins from the Soft Coral Klyxum flaccidum
European Journal of Organic Chemistry, Volume 2021, Issue 9, Page 1402-1406, March 5, 2021., 2021 Nineteen new eunicellin diterpenoids named klyflaccilins B‐T were isolated from the gorgonian Klyxum flaccidum. The structures were elucidated by NMR, showing that they represent different eunicellin subclasses. For five compounds X‐ray crystal structures were obtained that allowed to determine their absolute configurations.
Geng Li +3 more
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Squalen, 2017 Cembranoid content in soft coral is known as a chemotype that relate with genotype and environment. This research aimed to characterize the cembranoid Sarcophyton soft coral from the reef that acidified by CO2 volcanic vents (pHT 7.8) at Volcano Islands ...
Hedi Indra Januar +3 more
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New Lobane and Cembrane Diterpenes from Two Comorian Soft Corals
Marine Drugs, 2010 Preliminary biological investigation of a collection of Comorian soft corals resulted in the selection of two specimens, one of Sarcophyton and the other of Lobophytum, on the basis of their toxicity on larvae of the brine shrimp (Artemia salina) and ...
Maurice Aknin +4 more
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Oxygenated Cembranoids from the Soft Coral Sinularia flexibilis [PDF]
International Journal of Molecular Sciences, 2013 Chemical examination of the Taiwanese soft coral Sinularia flexibilis led to the isolation of five cembrane-based diterpenoids 1–5, including two new metabolites, 11-acetylsinuflexolide (1) and 11-acetyldihydrosinuflexolide (2). The structures of the new metabolites were determined based on extensive spectroscopic analysis, particularly mass ...
Su, Ching-Chyuan +4 more
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Marine Drugs, 2020 Chemical investigation of the marine soft coral Sarcophyton tenuispiculatum resulted in the isolation of a 1,4-dihydrobenzoquinone, sarcotenuhydroquinone (1), three new cembranoids, sarcotenusenes A‒C (2‒4), and ten previously reported metabolites 5–14 ...
Tzu-Yin Huang +7 more
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Angewandte Chemie, Volume 137, Issue 18, April 25, 2025.The application of gem‐hydrogenation, which exploits the electrophilic character of the ruthenium carbene intermediates transiently formed, to natural product total synthesis allowed the stereostructure of a pair of diastereomeric seco‐cembranoids that are almost indistinguishable by NMR to be rigorously assigned.
Ricardo Molina Betancourt +2 more
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Squalen, 2016 Indonesian tropical soft corals are valuable resources that produce pharmacological cytotoxic cembranoids. However, the manual structure determination in these compounds requires adequate knowledge of organic chemistry.
Hedi Indra Januar +3 more
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New Cembranoids from Burley Tobacco
Zeitschrift für Naturforschung C, 1981 Abstract The liquid CO2-extract of aged burley tobacco was investigated for its content of diterpenoids, which are considered as important precursors of flavour constituents. Among several cembranoids, already known from various tobacco types, 4,8-dimethyl-8-hydroxy-11-(1-methyl-ethyl)-14-oxo-pentadeca-5,9-diene-4-olide, a new natural ...
Ursula Bruemmer +5 more
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