11006-95-4 16755-07-0 1H-Pyrrole-2,5-dione, 3-beta-D-ribofuranosyl- (9CI) 2-beta-D-Ribofuranosylmaleimide 23393-83-1 3-beta-D-Ribofuranosyl-1H-pyrrole-2,5-dione 76025-10-0 BRN 0538225 D-Showdomycin MALEIMIDE, 2-beta-D-RIBOFURANOSYL- NSC 93047 Showdomycin