(S)-2-[3-(2-amino-6-chloropyrimidin-4-ylsulfanyl)propionylamino]-5-tert-butoxycarbonylamino pentanoic acid methyl ester

methyl Nδ-(tert-butoxycarbonyl)-Nα-[4-[2-(2,4-diamino-7H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl]-L-ornithinate

methyl Nδ-(tert-butoxycarbonyl)-Nα-[4-[3-(2,4-diamino-7H-pyrrolo[2,3-d]pyrimidin-5-yl)propyl]benzoyl]-L-ornithinate

(S)-2-{4-[2-(2,4-Diamino-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-ethyl]-benzoylamino}-5-((E)-3-methoxycarbonyl-acryloylamino)-pentanoic acid methyl ester

methyl Nα-[4-[2-(2,4-diamino-7H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl]-Nδ-(4-toluenesulfonyl)-L-ornithinate