title: 3-Methyladenine nucleosides: their synthesis, ring opening, and glycosidic bond cleavage.
abstract: 3-Methyladenosine (Va) and 3-methyl-2'-deoxyadenosine (Vb) have been synthesized in the form of the p-toluenesulfonate salt by methylation of N'-benzyloxy-5-formamido-1-beta-D-ribofuranosylimidazole-4-carboxamidine (IIa) and of N'-benzyloxy-1-(2-deoxy-beta-D-ribofuranosyl)-5-formamidoimidazole-4-carboxamideine (IIb) followed by hydrogenolysis of the N'-benzyloxy group and cyclization. The 3-methyladenine nucleosides thus obtained are very unstable, and their hydrolytic cleavage of the glycosidic bond and ring opening of the adenine ring have been studied.
mesh_terms: D000241:Adenosine / Q000031:analogs & derivatives* / Q000138:chemical synthesis; D003839:Deoxyadenosines / Q000031:analogs & derivatives* / Q000138:chemical synthesis; D006027:Glycosides; D007202:Indicators and Reagents; D008722:Methods
chemical_list: D003839:Deoxyadenosines; D006027:Glycosides; D007202:Indicators and Reagents; C031080:3-methyladenosine; C031081:3-methyl-2'-deoxyadenosine; D000241:Adenosine