The molecule is a homodetic cyclic peptide isolated from the culture medium of the cyanobacterium Tolypothrix byssoidea. It has a role as an antifungal agent and a bacterial metabolite.
2-[3-[(2S,5S,8S,11S,14S,17S,20S,23S,26S,29S,32S,35S,38E)-32-benzyl-17-[(2S)-butan-2-yl]-38-ethylidene-14,20-bis[(1R)-1-hydroxyethyl]-5-[(4-hydroxyphenyl)methyl]-8-(2-methylsulfanylethyl)-3,6,9,12,15,18,21,24,27,30,33,36,39-tridecaoxo-11,23,26,29,35-penta(propan-2-yl)-1,4,7,10,13,16,19,22,25,28,31,34,37-tridecazacyclononatriacont-2-yl]propyl]guanidine