3'-Deoxytubercidin 40725-89-1 7-(3-Deoxy-beta-D-erythro-pentofuranosyl)-7H-pyrrolo(2,3-d)pyrimidin-4-amine 7H-Pyrrolo(2,3-d)pyrimidin-4-amine, 7-(3-deoxy-beta-D-erythro-pentofuranosyl)- BRN 0756585 NSC 124154