Briaranes

Some time ago, we initiated a study of the coelenterate Briareum polvanthes to ascertain whether there was a chemotaxonomic basis for the species distinction between the Briareum found in Bermuda and the more common fl,. asbestinum found throughout the Caribbean. We have found a series of new diterpenes, 9-13, with the briaran skeleton (17.22.2T). It has been implied (24.2 5) that this class of compounds serves as a chemical defense against predation in the soft corals and sea pens which produce them, but this has not yet been demonstrated by bioassay. [Pg.568]

Another prolific gorgonian is Junceella, and these animals contributed 15 chlorinated briarane diterpenoids to the first survey. A series of juncins A-F from the Red Sea Junceella juncea were presented earlier, although C and F were not... [Pg.75]

Fig. 3.8 Ellisella sp., a briarane-containing sea whip, collected in Alor, Indonesia (Photo J. Tanaka)...

Sung P-J, Sheu J-H, Xu J-P (2002) Survey of Briarane-Type Diterpenoids of Marine Origin. Heterocycles 56 535... [Pg.408]

Sung P-J, Chang P-C, Fang L-S, Sheu J-H, Chen W-C, Chen Y-P, Lin M-R (2005) Survey of Briarane-Related Diterpenoids - Part II. Heterocycles 65 195... [Pg.408]

Subrahmanyan C, Kulatheeswaran R, Ward RS (1998) Briarane Diterpenes from the Indian Ocean Gorgonian Gorgonella umbraculum. J Nat Prod 61 1120... [Pg.408]

Rodriguez AD, Ramferz C, Cobar OM (1996) Briareins C-L, Ten New Briarane Diterpenoids from the Common Caribbean Gorgonian Briareum asbestinum. J Nat Prod 59 15... [Pg.409]

Sung P-J, Su J-H, Duh C-Y, Chiang MY, Sheu J-H (2001) Briaexcavatolides K-N, New Briarane Diterpenes from the Gorgonian Briareum excavatum. J Nat Prod 64 318... [Pg.409]

Kwak JH, Schmitz FJ, Williams GC (2001) Milolides, New Briarane Diterpenoids from the Western Pacific Octocoral Briareum stechei. J Nat Prod 64 754... [Pg.409]

Iwagawa T, Babazono K, Okamura H, Nakatani M, Doe M, Morimoto Y, Shiro M, Takemura, K (2005) Briviolides, New Briarane Diterpenes from a Gorgonian Briareum sp. Heterocycles 65 2083... [Pg.409]

Hamann MT, Harrison KN, Carroll AR, Scheuer PJ (1996) Briarane Diterpenes from Micronesian Gorgonians. Heterocycles 42 325... [Pg.409]

Anjaneyulu ASR, Rav NSK (1997) Juncins G and H New Briarane Diterpenoids of the Indian Ocean Gorgonian Junceella juncea Pallas. J Chem Soc, Perkin Trans 1 959... [Pg.409]

Anjaneyulu ASR, Rao VL, Sastry VG, Venugopal MJRV, Schmitz FJ (2003) Juncins I-M, Five New Briarane Diterpenoids from the Indian Ocean Gorgonian Juncella juncea Pallas. J Nat Prod 66 507... [Pg.409]

Qi S-H, Zhang S, Huang H, Xiao Z-H, Huang J-S, Li Q-X (2004) New Briaranes from the South China Sea Gorgonian Junceella juncea. J Nat Prod 67 1907... [Pg.409]

Shen Y-C, Lin Y-C, Chiang MY (2002) Juncenolide A, a New Briarane from the Taiwanese Gorgonian Junceella juncea. J Nat Prod 65 54... [Pg.409]

Lin Y-C, Huang Y-L, Khalil AT, Chen M-H, Shen Y-C (2005) Juncenolides F and G, Two New Briarane Diterpenoids from Taiwanese Gorgonian Junceella juncea. Chem Pharm Bull 53 128... [Pg.409]

Garcia M, Rodriguez J, Jimenez C (1999) Absolute Structures of New Briarane Diterpenoids from Junceella fragilis. J Nat Prod 62 257... [Pg.409]

Zhang W, Guo Y-W, Mollo E, Cimino G (2004) Junceellonoids A and B, Two New Briarane Diterpenoids from the Chinese Gorgonian Junceella fragilis Ridley. Helv Chim Acta 87 2341... [Pg.409]

Kubota NK, Kobayashi Y, Iwamoto H, Fukazawa Y, Uchio Y (2006) Two New Haloge-nated Briarane Diterpenes from the Papuan Gorgonian Coral Junceella fragilis. Bull Chem Soc Jpn 79 634... [Pg.409]

Maharaj D, Pascoe KO, Tinto WF (1999) Briarane Diterpenes from the Gorgonian Octo-coral Erythropodium caribaeorum from the Northern Caribbean. J Nat Prod 62 313... [Pg.410]

Taglialatela-Scafati O, Craig KS, Reberioux D, Roberge M, Andersen RJ (2003) Briarane, Erythrane, and Aquariane Diterpenoids from the Caribbean Gorgonian Erythropodium caribaeorum. Eur J Org Chem 3515... [Pg.410]

Subrahmanyam C, Ratnakumar S, Ward RS (2000) Umbraculolides B-D, Further Briarane Diterpenes from the Gorgonian Gorgonella umbraculum. Tetrahedron 56 4585... [Pg.410]

Tanaka C, Yamamoto Y, Otsuka M, Tanaka J, Ichiba T, Marriott G, Rachmat R, Higa T (2004) Briarane Diterpenes from Two Species of Octocorals, Ellisella sp. and Pteroeides sp. J Nat Prod 67 1368... [Pg.410]

Iwasaki J, Ito H, Aoyagi M, Sato Y, Iguchi K (2006) Briarane-Type Diterpenoids from the Okinawan Soft Coral Pachyclavularia violacea. J Nat Prod 69 2... [Pg.410]

Next, the isolation and characterization of a series of briarane diterpenoids was reported from the Western Pacific octocoral Briareum stechi by Kwak et al.142 The general structural skeleton shared by a number of the 11 members of the series characterized by the authors is shown by 69. [Pg.58]

Schmitz and co-workers164 reported the isolation and structural characterization of five new briarane diterpenoids, juncins I-M from the Indian Ocean gorgonian Junceella junca Pallas. The general structure of the juncins is shown by 83. [Pg.64]

Heterocyclic natural products of gorgonian corals of genus Briareum exclusive of briarane-type diterpenoids 02H(57)1705. [Pg.184]

Survey of briarane-type diterpenoids of marine origin 02H(57)535. [Pg.184]

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