Polymyxin M2

Polymikin E2, 7-L-treonin

N2-(6-Methyl-1-oxoheptyl-L-A2bu-L-Thr-L-A2bu-)cyclo(L-A2bu*-L-A2bu-D-Leu-L-Thr-L-A2bu-L-A2bu-L-Thr-)