Halogenated Briarane Diterpenes with Acetyl Migration from the Gorgonian Coral Junceella fragilis

2017 ◽  
Vol 14 (5) ◽  
pp. e1700053 ◽  
Author(s):  
Wei Cheng ◽  
Xiaodan Li ◽  
Fuling Yin ◽  
Leen van Ofwegen ◽  
Wenhan Lin
Keyword(s):  
Gorgonian Coral ◽  
Acetyl Migration

B:Chemical Investigation of the Red Sea Gorgonian Coral Rumphella torta

2020 ◽  
Vol 4 (2) ◽  
pp. 16-24
Author(s):  
Nermeen Abdul Kader ◽  
Eman Habib ◽  
Hashem Hasanean ◽  
safwat ahmed ◽  
Reda Abdelhameed ◽  
...  
Keyword(s):  
Red Sea ◽  
Gorgonian Coral

scholarly journals Bloom of the cyanobacterium Moorea bouillonii on the gorgonian coral Annella reticulata in Japan

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Hideyuki Yamashiro ◽  
Naoko Isomura ◽  
Kazuhiko Sakai
Keyword(s):  
Gorgonian Coral

scholarly journals New 9-Hydroxybriarane Diterpenoids from a Gorgonian Coral Briareum sp. (Briareidae)

2016 ◽  
Vol 17 (1) ◽  
pp. 79 ◽  
Author(s):  
Yin-Di Su ◽  
Chun-Sung Sung ◽  
Zhi-Hong Wen ◽  
Yu-Hsin Chen ◽  
Yu-Chia Chang ◽  
...  
Keyword(s):  
Gorgonian Coral

scholarly journals Isolation and identification of ecdysteroid phosphates and acetylecdysteroid phosphates from developing eggs of the locust, Schistocerca gregaria

1984 ◽  
Vol 221 (2) ◽  
pp. 459-464 ◽  
Author(s):  
R E Isaac ◽  
H H Rees
Keyword(s):  
High Performance ◽  
Fast Atom Bombardment ◽  
Schistocerca Gregaria ◽  
Phosphate Esters ◽  
Enzymic Hydrolysis ◽  
Isolation And Identification ◽  
Insect Eggs ◽  
Polar Extracts ◽  
Moulting Hormone ◽  
Acetyl Migration

Maturing eggs of the desert locust, Schistocerca gregaria, contain a variety of ecdysteroid (insect moulting hormone) conjugates and metabolites, four of which have been previously isolated from polar extracts and identified as ecdysonoic acid, 20-hydroxyecdysonoic acid, 3-acetylecdysone 2-phosphate and ecdysone 2-phosphate. In the present study we have isolated eight additional ecdysteroids from similar late-stage eggs by high-performance liquid chromatography. The 22-phosphate esters of ecdysone, 2-deoxyecdysone, 20-hydroxyecdysone and 2-deoxy-20-hydroxyecdysone, all of which were first identified as ecdysteroid components of newly-laid eggs of S. gregaria, were identified by co-chromatography with authentic compounds and by physicochemical techniques. The remaining compounds were identified as 3-acetyl-20-hydroxyecdysone 2-phosphate, 3-epi-2-deoxyecdysone 3-phosphate, 3-acetylecdysone 22-phosphate and 2-acetylecdysone 22-phosphate by fast atom bombardment mass spectrometry, p.m.r. spectroscopy and analysis of the steroid moieties after enzymic hydrolysis. The latter two compounds, after isolation, are susceptible to nonenzymic acetyl migration and deacetylation to give mixtures of ecdysone 22-phosphate and its 2- and 3-acetate derivatives. The possible role and significance of these ecdysteroid conjugates with respect to the control of hormone titres in insect eggs is discussed.

scholarly journals Natural Clovanes from the Gorgonian Coral Rumphella Antipathies

2013 ◽  
Vol 8 (8) ◽  
pp. 1934578X1300800 ◽  
Author(s):  
Hsu-Ming Chung ◽  
Wei-Hsien Wang ◽  
Tsong-Long Hwang ◽  
Yang-Chang Wu ◽  
Ping-Jyun Sung
Keyword(s):  
Spectral Data ◽  
Natural Source ◽  
Human Neutrophils ◽  
Spectroscopic Methods ◽  
Superoxide Anions ◽  
Inhibitory Effects ◽  
Gorgonian Coral ◽  
First Time

Three natural clovane-related sesquiterpenoids, 2β-acetoxyclovan-9α-ol (1), 9α-acetoxyclovan-2β-ol (2) and clovan-2β,9β-diol (3), were isolated from the gorgonian coral Rumphella antipathies. The structures of clovanes 1–3 were elucidated by spectroscopic methods and by comparison of the spectral data with those of known clovane analogues. This is the first time that clovanes 1–3 have been isolated from a natural source. Clovanes 1 and 2 displayed inhibitory effects on the generation of superoxide anions and the release of elastase by human neutrophils.

scholarly journals Pubinernoid A and Apo-9′-fucoxanthinone, Secondary Metabolites from a Gorgonian Coral Pinnigorgia sp

2016 ◽  
Vol 11 (6) ◽  
pp. 1934578X1601100
Author(s):  
Hsin-Huan Chang ◽  
Yu-Chia Chang ◽  
Wu-Fu Chen ◽  
Tsong-Long Hwang ◽  
Lee-Shing Fang ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Spectroscopic Data ◽  
Spectroscopic Analysis ◽  
Inhibitory Effect ◽  
Human Neutrophils ◽  
Gorgonian Coral ◽  
First Report ◽  
Significant Inhibitory Effect ◽  
Animal Source

The structures of pubinernoid A (1) and apo-9′-fucoxanthinone (2), isolated from a gorgonian coral Pinnigorgia sp., were elucidated on the basis of spectroscopic analysis and by comparison of their spectroscopic data with those of known compounds. This is the first report of 1 and 2 from an animal source. Apo-9′-fucoxanthinone (2) displayed a significant inhibitory effect on the release of elastase by human neutrophils, with an IC50 value of 5.75 μM.

Briarane-type diterpenoids from a gorgonian coral Ellisella sp. with anti-HBV activities

2020 ◽  
Vol 105 ◽  
pp. 104423
Author(s):  
Jiru Wu ◽  
Xiaodan Li ◽  
Xingchen Guo ◽  
Zhongbin Cheng ◽  
Junjun Meng ◽  
...  
Keyword(s):  
Gorgonian Coral

Linking local to global properties in branching modular networks: gorgonian coral colonies

2010 ◽  
Vol 157 (5) ◽  
pp. 1003-1010 ◽  
Author(s):  
Nini Johanna Cadena ◽  
Camilo Rey ◽  
Marcela Hernández-Hoyos ◽  
J. Darío Sánchez ◽  
Stanislas Teillaud ◽  
...  
Keyword(s):  
Gorgonian Coral ◽  
Global Properties ◽  
Modular Networks
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