Fmoc-L-HyLeu-Leu-OAll

Fmoc-L-HyLeu(OTBS)-L-Leu-OAll

H-HyLeu(OTBS)-Leu-OAll

Boc-D-Leu-L-Leu-L-HyPhe-L-HyLeu(OTBS)-L-Leu-OAll

Boc-D-Leu-L-Leu-L-threo-O-[Fmoc-L-Ser(OtBu)]-HyPhe-L-HyLeu(OTBS)-L-Leu-OAll