for the following products
Benzenebutanoic acid, a-[[1-carboxy-5-[(trifluoroacetyl)amino]pentyl]amino]-monoethyl ester, [s-(R*,R*)]- (9ci) | N2-[(S)-Ethoxycarbonyl-3-phenylpropyl]-N8-trifluoroacetyl-L-lysine and N2-[(1S)-ethoxycarbonyl-3-phenylpropyl]-N6-trifluoroacetyl-L-lysine
