BRIDSON, P. K.;MCGOWAN, A.;WILSON, C. M.;YEH, Y. M., J. HETEROCYCL. CHEM., 24,(1987) N 4, 1155-1156
作者:BRIDSON, P. K.、MCGOWAN, A.、WILSON, C. M.、YEH, Y. M.
DOI:——
日期:——
Synthesis and Intramolecular Cyclisation of 5-Aminoimidazolealkanoates and Their Conversion to Purine Derivatives
作者:Paul R. Birkett、Christopher B. Chapleo、Grahame Mackenzie
DOI:10.1055/s-1991-26403
日期:——
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.
Intramolecular cyclization of ethyl ω-(5-amino-4-aminocarbonylimidazol-1-yl)carboxylates
作者:P. K. Bridson、A. McGowan、C. M. Wilson、Y. M. Yeh
DOI:10.1002/jhet.5570240444
日期:1987.7
Attempted elaboration of the title compounds to purines by reaction with ethyl formate leads instead to some novel fused imidazoles by intramolecularcyclization.