echiguanine B

N-(3-Aminopropyl)-2-amino-4-hydroxy-7H-pyrrolo[2,3-d]pyrimidine-5-carboxamide

N-(3-Aminopropyl)-2-amino-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidine-5-carboxamide