(1S,4S,13S,16S,19S,22S,25S,28R,31S,37S,40S,41S,44R,47S,50S,53S,56R,65S,70S)-44-amino-47-(4-aminobutyl)-4,16,22-tribenzyl-31-[(R)-carboxy(hydroxy)methyl]-2,5,14,17,20,23,26,29,32,35,38,45,48,51,54,57,67-heptadecahydroxy-37-(2-hydroxy-2-iminoethyl)-50-(3-hydroxy-3-iminopropyl)-41,70-dimethyl-8-oxo-25-propan-2-yl-42,69,72-trithia-3,6,9,15,18,21,24,27,30,33,36,39,46,49,52,55,58,60,66-nonadecazapentacyclo[38.18.9.319,56.328,53.09,13]triheptaconta-2,5,14,17,20,23,26,29,32,35,38,45,48,51,54,57,66-heptadecaene-65-carboxylic acid
Lancovutide, a peptide antibiotic, is in clinical development for the treatment of cystic fibrosis. Lancovutide is a 19-amino-acid tetracyclic peptide produced by Streptoverticillium cinnamoneus and is closely related to cinnamycin (Ro09-0198). It belongs to the lantibiotics. Lantibiotics are bacteriocins that are characterized by the presence of a high proportion of unusual amino acids.