(S)-2-((S)-2-tert-Butoxycarbonylamino-4-methyl-pentanoylamino)-3-(1H-imidazol-4-yl)-propionic acid benzyl ester
BOC-O-benzyl-L-threonine N-hydroxysuccinimide ester
(S)-2-[(S)-2-((S)-2-tert-Butoxycarbonylamino-propionylamino)-4-methyl-pentanoylamino]-3-(1H-imidazol-4-yl)-propionic acid benzyl ester
L-histidine benzyl ester di-para-toluene sulfonate
Boc-Leu-ONSu