18440-67-0 7H-Pyrrolo[2,3-d]pyrimidine-5-carboxamide, 4-(acetylamino)-7-.beta.-D-ribofuranosyl-, 2',3',5'-triacetate 7H-Pyrrolo[2,3-d]pyrimidine-5-carboxamide, 4-acetamido-7-.beta.-D-ribofuranosyl-, 2',3',5'-triacetate NSC116277