The molecule is a 18-membered cyclodepsipeptide isolated from the culture broth of Flexibacter. It exhibits potent inhibitory activity against human leukocyte elastase (EC 6.5.1.1.). It has a role as a metabolite, an EC 3.4.21.37 (leukocyte elastase) inhibitor and an antimicrobial agent. It is a cyclodepsipeptide and a macrocycle.
(2S,3R)-N-[(3R,6S,9S,14S,17S,18R)-6-(2-amino-2-oxoethyl)-3,18-dimethyl-9,14-bis(2-methylpropyl)-2,5,8,11,12,13,16-heptaoxo-1-oxa-4,7,10,15-tetrazacyclooctadec-17-yl]-3-hydroxy-2-[[(2S)-3-phenyl-2-[(2-phenylacetyl)amino]propanoyl]amino]butanamide