isoleucine,aminocarbonyl,leucine
Leucine
667427-02-3L-Leucine,N-(2-hydroxy-3,4-dioxo-1-cyclobuten-1-yl)glycylglycyl-L-phenylalanyl-,phenylmethyl ester
918528-98-0L-Leucine,L-leucyl-L-leucyl-L-leucyl-L-leucyl-L-leucyl-L-leucyl-L-leucyl-L-leucyl-L-leucyl-L-leucyl-L-leucyl-L-seryl-L-leucyl-L-lysyl-