184099-95-4
2-((S)-2-{2-[(S)-2-(2-{(S)-2-[2-((S)-2-tert-Butoxycarbonylamino-propionylamino)-2-methyl-propionylamino]-propionylamino}-2-methyl-propionylamino)-propionylamino]-2-methyl-propionylamino}-propionylamino)-2-methyl-propionic acid benzyl ester