ENNIATIN B

N-Methylcyclo(L-Val-D-Hmb-N-methyl-L-Val-D-Hmb-N-methyl-L-Val-D-Hmb-)

(3S,6R,9S,12R,15S,18R)-3,6,9,12,15,18-Hexaisopropyl-4,10,16-trimethyl-1,7,13-trioxa-4,10,16-triazacyclooctadecane-2,5,8,11,14,17-hexone