Dysidea chlorea

Reef provided 920-922, and the absolute configuration of the latter metabolite was established as shown (985). Dysidea fragilis from the South China Sea has yielded dysamide D (923) (986), and Dysidea chlorea from Micronesia afforded 12 new polychlorinated diketopiperazines, dysamides I-T (924—935) (987). In addition, this study (987) confirmed the structure of dysamide E (936) (988). Based on previous assignments the absolute configurations of 924—936 are believed to be those indicated. A Pacific Ocean collection of Dysidea sp. provided dysamide U (937), which is the first trichlorinated member of the diketopiperazine family to be identified (989). 

Fu X, Ferreira MFG, Schmitz FJ, Kelly-Borges M (1998) New Diketopiperazines from the Sponge Dysidea chlorea. J Nat Prod 61 1226... 

Most preparation methods of PBDEs reported are patents describing the bromination of diphenylether in the presence of a catalyst [1]. This results in products containing mixtures of brominated diphenylethers (Table 3). PBDEs have not been reported to occur naturally in the environment, but the related polybrominated phenoxy phenols have been found in several marine organisms, e.g. in Dysidea herbacea, Dysidea chlorea, and Phyllospongio foliascents [3]. Vionov et al. [14] showed that the bacteria Vibrio sp. associated with the sponge Dysidea sp. is capable of producing brominated diphenylethers. 

Carte, B., and D.J. Faulkner Polybrominated Diphenyl Ethers from Dysidea herbacea, Dysidea chlorea and Phyllospongia foliascens. Tetrahedron 37, 2335 (1981). 

Haterumadysins A-D are sesquiterpenes with a new bicyclic skeleton. They were isolated from a species of Japanese origin (Hateruma Island, Okinawa), Dysidea chlorea, and inhibit the division of sea urchin eggs (Ueda et al, 2006). Haterumadysins were isolated with spirodysin, previously identified from Dysidea herbacea and Dysidea sp. (Kazlauskas, Murphy, and Wells, 1978b,... 

Ueda, K., Kadekaru, T Siwu, E.R.O., Kita, M and Uemura, D. (2006) Haterumadysins A-D, sesquiterpenes from the Okinawan marine sponge Dysidea chlorea. J. Nat. Prod., 69,1077-1079. 

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