82006-97-1 Boc-P-asp-pheamide Boc-beta-phenacyl-aspartyl-phenylalanineamide L-Phenylalaninamide, N-((1,1-dimethylethoxy)carbonyl)-L-alpha-aspartyl-, 2-oxo-2-phenylethyl ester t-Butoxycarbonyl-beta-phenacyl-aspartyl-phenylalanineamide tert-Butoxycarbonyl-beta-phenacyl-aspartyl-phenylalanineamide