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

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

(S)-5-[(Benzo[1,3]dioxole-5-carbonyl)-amino]-2-{4-[2-(2,4-diamino-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-ethyl]-benzoylamino}-pentanoic acid methyl ester

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

3-((S)-4-{4-[3-(2,4-Diamino-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-propyl]-benzoylamino}-4-methoxycarbonyl-butylcarbamoyl)-naphthalene-2-carboxylic acid tert-butyl ester