Dihydrodestruxin A

Cyclo[βAla-[(2R)-α-hydroxy*valeryl]-L-Pro-L-Ile-N-methyl-L-Val-N-methyl-L-Ala-]

N-[N-[(2R)-1-Oxo-2-hydroxypentyl]-L-Pro-L-Ile-N-methyl-L-Val-N-methyl-L-Ala-]-β-alanine lactone