Colistin A

Chemical Name: (6R)-N-[(2S)-4-amino-1-[[(2S,3R)-1-[[(2S)-4-amino-1-oxo-1-[[(3S,6S,9S,12S,15R,18S,21S)-6,9,18-tris(2-aminoethyl)-3-[(1R)-1-hydroxyethyl]-12,15-bis(2-methylpropyl)-2,5,8,11,14,17,20-heptaoxo-1,4,7,10,13,16,19-heptazacyclotricos-21-yl]amino]butan-2-yl]amino]-3-hydroxy-1-oxobutan-2-yl]amino]-1-oxobutan-2-yl]-6-methyloctanamide

Synonym: CC[C@@H](C)CCCCC(N[C@@H](CCN)C(N[C@@H]([C@H](O)C)C(N[C@@H](CCN)C(N[C@@H]1C(N[C@@H](CCN)C(N[C@H](CC(C)C)C(N[C@@H](CC(C)C)C(N[C@@H](CCN)C(N[C@@H](CCN)C(N[C@]([C@H](O)C)([H])C(NCC1)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O