16754-83-9 7-(beta-D-Ribofuranosyl)pyrrolo(2,3-d)pyrimidine 7-Deazanebularin 7-Deazanebularine 7-beta-D-Ribofuranosyl-7H-pyrrolo-(2,3-d)pyrimidine 7H-Pyrrolo(2,3-d)pyrimidine, 7-beta-D-ribofuranosyl- (8CI)(9CI) 7beta-D-Ribofuranosylpyrrolo-(2,3-d)pyrimidine NSC 107519 Nebularine, 7-deaza- Pyrrolo(4,3-d)-pyrimidine-3-beta-D ribofuranoside