The molecule is a 19-membered cyclodepsipeptide isolated from the marine cyanobacterium Oscillatoria sp. It exhibits significant inhibitory activity against the enzyme chymotrypsin (EC 3.4.21.1). It has a role as a metabolite and an EC 3.4.21.1 (chymotrypsin) inhibitor. It is a macrocycle, an organobromine compound and a cyclodepsipeptide. It derives from a D-glyceric acid.
(2S)-N-[(2S)-1-[[(2S)-1-[[(2S,5S,8S,11R,12S,15S,18S,21R)-5-[(3-bromo-4-hydroxyphenyl)methyl]-21-hydroxy-2-[(1S)-1-hydroxyethyl]-15-[2-(4-hydroxyphenyl)ethyl]-4,11-dimethyl-3,6,9,13,16,22-hexaoxo-8-propan-2-yl-10-oxa-1,4,7,14,17-pentazabicyclo[16.3.1]docosan-12-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopropan-2-yl]-2-[[(2R)-2,3-dihydroxypropanoyl]amino]-5-(4-hydroxyphenyl)pentanamide