The molecule is a 10-membered cyclodepsipeptide containing four amino acids in the L- configuration, Ala, Leu, Thr (2 residues); one (Arg) in the D-configuration; two N-methyl amino acids, N-MeAla and N-MeGln; a methoxy tyrosine, a 3, 4-dimethyl-L-glutamine, and a 4-amino-7-guanidino-2,3 dihydroxypentanoic acid (AGDHE), formally derived from L-Arg. It is obtained from the shallow water sponge Callipelta and has been found to show activity against HIV virus. It has a role as a metabolite, an anti-HIV-1 agent and an antifungal agent. It is a member of guanidines, a member of phenols, a cyclodepsipeptide, a lactone and an oligopeptide.
(2R,3S,4S)-N'-[(3S,6R,9S,12S,15R,18S,21S,22R)-9-(3-amino-3-oxopropyl)-15-[3-(diaminomethylideneamino)propyl]-18-[(1R)-1-hydroxyethyl]-6-[(R)-(4-hydroxyphenyl)-methoxymethyl]-3,4,10,22-tetramethyl-12-(2-methylpropyl)-2,5,8,11,14,17,20-heptaoxo-1-oxa-4,7,10,13,16,19-hexazacyclodocos-21-yl]-4-[[(2R,3R,4S)-7-(diaminomethylideneamino)-2,3-dihydroxy-4-[[(2R)-2-[[(2R,3R,4R)-3-hydroxy-2,4,6-trimethylheptanoyl]amino]propanoyl]amino]heptanoyl]amino]-2,3-dimethylpentanediamide