4,10-anhydro[N-[[2-(2-methyl-1-oxopropyl)-1,3-thiazol-4- yl]carbonyl]-L-leucyl-D-α-glutamyl-L-isoleucyl-L-lysyl-Dornithyl-L-valyl-D-phenylalanyl-L-histidyl-D-α-aspartyl-Lasparagine] (bacitracin I1) ;