Results 151 to 160 of about 817 (169)

A synthetic study of briarane-type marine diterpenoid, pachyclavulide B

Tetrahedron Letters, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Mitsutake Nakamura, Junya Iwasaki, Hisanaka Ito, Kazuo Iguchi   +3 more
openaire   +3 more sources

Briarane, Erythrane, and Aquariane Diterpenoids from the Caribbean Gorgonian Erythropodium caribaeorum [PDF]

European Journal of Organic Chemistry, 2003
AbstractSeven new diterpenoids belonging to the briarane [erythrolides R (5), S (6), T (7), and U (8)], erythrane [erythrolide V (9)], and aquariane [aquariolides B (10) and C (11)] skeletal classes have been isolated from the encrusting gorgonian Erythropodium caribaeorum.
Raymond J. Andersen, Kyle S. Craig, Delphine Rebérioux, O Taglialatela-Scafati, O Taglialatela-Scafati, Michel Roberge   +5 more
openaire   +3 more sources

Briarlides, Briarane Diterpenes from a Gorgonian Briareum sp.

Journal of Natural Products, 2003
New briarane diterpenes, briarlides A-H (1-8), have been isolated from a gorgonian Briareum sp., collected at Amami Oshima, Kagoshima Prefecture. Their structures and cytotoxity toward Vero and MDCK cells are described.
Tetsuo, Iwagawa, Naoto, Nishitani, Seiji, Kurosaki, Hiroaki, Okamura, Munehiro, Nakatani, Matsumi, Doe, Kaoru, Takemura   +6 more
openaire   +2 more sources

Frajunolides E−K, Briarane Diterpenes from Junceella fragilis

Journal of Natural Products, 2008
Chemical investigation of the gorgonian octocoral Junceella fragilis, collected in Taiwan, resulted in the isolation of seven new briarane-type diterpenes, frajunolides E-K (1-7), in addition to 14 known briaranes, praelolide, junceellin, junceellolides A-E, and K, 11a,20a-epoxy-4-deacetoxyjunceelolide D, umbraculolide A, junceellonoid A, and juncins Y,
Ashraf Taha Khalil, Chia-Ching Liaw, Yao-Haur Kuo, Ya-Ching Shen, Yun-Sheng Lin, Tsong-Long Hwang   +5 more
openaire   +3 more sources

A new antifungal briarane diterpenoid from the gorgonian Junceella juncea Pallas [PDF]

Bioorganic & Medicinal Chemistry Letters, 2011
AbstractThe diterpenoid (I) is isolated along with 4 known compounds.
Abdul Rajack, D. Mallika, Y.L.N. Murthy, G. Damodar Reddy   +3 more
openaire   +2 more sources

Structure Elucidation of Briarane Diterpenoids Using Molecular Mechanics Calculations

Bulletin of the Chemical Society of Japan, 2006
Abstract A combination of NMR analysis and molecular mechanics calculations has succeeded in the determination of the stereostructure of flexible briarane diterpenoids. The molecular mechanics calculations disclosed the multi-conformational nature of the briarane diterpenoids and gave a successful reproduction of the observed 3J coupling
Yoshimasa Fukazawa, Natsuki K. Kubota, Yasuto Uchio, Takeharu Haino   +3 more
openaire   +2 more sources

ChemInform Abstract: Survey of Briarane‐Type Diterpenoids. Part 3.

ChemInform, 2009
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Ping‐Jyun Sung, et al. et al.
openaire   +2 more sources

Juncenolide A, a New Briarane from the Taiwanese Gorgonian Junceella juncea

Journal of Natural Products, 2001
Fractionation of the acetone extract of Junceella juncea collected in Taiwan resulted in the isolation of a new briarane, designated juncenolide A (1). The structure of 1 was determined on the basis of 2D NMR techniques, including COSY, HSQC, HMBC, and NOESY experiments, and was also confirmed by X-ray crystallographic analysis.
Michael Y. Chiang, Ya-Ching Shen, Yu-Chi Lin   +2 more
openaire   +3 more sources

Discovery of New Chlorinated Briaranes from Junceella fragilis [PDF]

Bulletin of the Chemical Society of Japan, 2009
Abstract Four briarane-type diterpenoids, including two new chlorinated metabolites, fragilides F (1) and G (2), along with two known compounds, junceellonoid D (3) and juncin Z (4), were isolated from the gorgonian coral Junceella fragilis.
Michael Y. Chiang, Wan-Ping Hu, Su-Hui Wang, Ping-Jyun Sung, Chen-Yu Tai, Chih-Yang Liu, Yu-Chia Chang, Yin-Di Su   +7 more
openaire   +2 more sources

Briarane Diterpenes from the Indian Ocean Gorgonian Gorgonella umbraculum

Journal of Natural Products, 1998
Three briarane diterpenes, junceellin (1), praelolide (2), and compound 3 (of which 3 is new), were isolated from the gorgonian Gorgonella umbraculum (EII & Sol), and their structures were established on the basis of their spectral data.
Ramasamy Kulatheeswaran, Robert S. Ward, Chitti Subrahmanyam   +2 more
openaire   +3 more sources