Synthesis and intramolecular cyclisation of 5-aminoimidazolealkanoates and their conversion to purine derivatives

Article abstract of DOI:10.1055/s-1991-26403

Synthesis of ethyl (9-hypoxanthinyl)- and (9-adeninyl)acetates, ethyl 3-(9-hypoxanthinyl)- and 3-(9-adeninyl)propanoates, and ethyl 2-(9-hypoxanthinyl)- and 2-(9-adeninyl)propanoates from appropriately substituted 5-aminoimidazole precursors is described. Cyclisation of the imidazoles also resulted in formation of an imidazopyrimidine and novel imidazoimidazoles.