H-DL-Tle-OH
Z-Tic-OH
Z-D-Tic-OH
H-D-Tic-OH
H-DL-Tic-OH
Boc-Tic-OH
Boc-D-Tic-OH
Boc-Sar-Osu
H-Sar-OtBu.HCl
Z-Pyr-Osu
Z-D-Pyr-OH
Z-Pyr-OtBu
Boc-D-Phg(4-OH)-OH
Ac-Phg(4-OAc)-OH
H-D-Phg(4-OH)-OH
H-DL-phg(4-Cl)-OH