7H-Pyrrolo[2,3-d]pyrimidin-2-amine
5-Chloro-7H-pyrrolo[2,3-d]pyrimidin-2-amine
4-Methoxy-7H-pyrrolo[2,3-d]pyrimidin-2-amine
4-Chloro-7H-pyrrolo[2,3-d]pyrimidin-2-amine
5-Iodo-7H-pyrrolo[2,3-d]pyrimidin-2-amine
