(2S)-(N-cyclohexyl-N-methylamino)-2-carboxyisovaleric acid

((S)-4-methyl-2-((N2,Nw,Nw'-tris(tert-butoxycarbonyl)-L-arginyl-L-tyrosyl)oxy)pentanoyl)-L-prolyl-L-threonine

(2S)-(cyclohexyloxy)-2-carboxyisovaleric acid

(S)-1-{(S)-2-[(S)-2-Amino-3-(4-hydroxy-phenyl)-propionyloxy]-4-methyl-pentanoyl}-pyrrolidine-2-carboxylic acid (1S,2R)-2-benzyloxy-1-benzyloxycarbonyl-propyl ester

(E)-(3S,6R,10R,16S)-10-(3-Chloro-4-methoxy-benzyl)-16-((1R,2R,3R)-2,3-dihydroxy-1-methyl-3-phenyl-propyl)-3-isobutyl-6-methyl-1,4-dioxa-8,11-diaza-cyclohexadec-13-ene-2,5,9,12-tetraone