Leucine

L-Leucine,N-[N-[N-[(phenylmethoxy)carbonyl]-L-leucyl]-S-(phenylmethyl)-L-cysteinyl]-, methyl ester

L-Isoleucine,L-seryl-L-serylglycylglycyl-L-arginyl-L-threonyl-L-phenylalanyl-L-a-aspartyl-L-a-aspartyl-L-phenylalanyl-L-histidyl-L-arginyl-L-tyrosyl-L-leucyl-L-leucyl-L-valylglycyl-

L-Isoleucine, hexyl ester