enopeptin A

N-[[(2E,4E,6E,8E,10E)-12-(2-Hydroxy-5-oxo-1-cyclopentenylamino)-1,12-dioxo-2,4,6,8,10-dodecapentenyl]-L-Phe-]cyclo[L-Ser*-L-Pro-N-methyl-L-Ala-L-Ala-4β-methyl-L-Pro-]