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.
Synthesis of optically active-α-(imidazol-1-yl, purin-9-yl or uracil-1-yl) propanoic and succinic acid derivatives
作者:Paul R. Birkett、Hazel King、Christopher B. Chapleo、David F. Ewing、Grahame Mackenzie
DOI:10.1016/s0040-4020(01)80256-8
日期:1993.1
An efficient route is reported to chiral propanoic and succinicacidderivatives substituted in the α-position with adenine, hypoxanthine and uracil groups. These nucleic acid base derivatives are obtained in optically pure form by a procedure which starts from an amino acid as a convenient chiral synthon.