143839-79-6 Boc-leu-leu-phe-cho L-Leucinamide, N-((phenylmethoxy)carbonyl)-L-leucyl-N-(1-formyl-2-phenylethyl)- N-((Phenylmethoxy)carbonyl)-L-leucyl-N-(1-formyl-2-phenylethyl)-L-leucinamide N-Benzyloxycarbonyl-leucyl-leucyl-phenylalaninal Z-Leu-leu-phe-al Z-Llf-CHO