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Paper | Regular issue | Vol 65, No. 11, 2005, pp.2675-2682
Published online, 26th August, 2005
DOI: 10.3987/COM-05-10505
Five New Sulfur-containing Polybrominated Bisindoles from the Red Alga Laurencia brongniartii

Natsuki K. Kubota, Hajime Iwamoto, Yoshimasa Fukazawa, and Yasuto Uchio*

*School of Allied Medical Sciences, Faculty of Medicine, Kagoshima University, Kagoshima 890-8544, Japan


Five new sulfur-containing polybrominated bisindole (1˜5) were isolated from the red alga, Laurencia brongniartii, in addition to six related compounds (6˜11), which have been previously found in the Okinawan alga. The structures of these new bisindole metabolites were elucidated on the basis of spectroscopic studies, as well as X-Ray crystallographic analysis of 1.