4-Amino-7-beta-D-arabinofuranosyl-7H-pyrrolo(2,3-d)pyrimidine-5-carboxamide 7H-Pyrrolo(2,3-d)pyrimidine-5-carboxamide, 4-amino-7-beta-D-arabinofuranosyl- 90813-74-4 Ara-sangivamycin BRN 4205613 NSC 134339