3-(β-D-ribofuranosyl)-4-methylthioimidazo<4,5-d>pyridazine

1-乙酰基-2,3,5-三苯甲酰氧基-1-beta-D-呋喃核糖

1,5-二氢-5-[(苯基甲氧基)甲基]-4H-咪唑并[4,5-d]哒嗪-4-酮

3-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-5-benzyloxymethylimidazo[4,5-d]pyridazin-4-one

5-((benzyloxy)methyl)-4-((trimethylsilyl)oxy)-5H-imidazo[4,5-d]pyridazine