Pteridines. 54. A novel synthetic approach to C-6 carbon substituted pterins via intermolecular 1,3-dipolar cycloaddition reactions
作者:Edward C. Taylor、Partha S. Ray
DOI:10.1021/jo00005a028
日期:1991.3
A number of 5-[(hydroxyimino)methyl]pyrazines and 6-[(hydroxyimino)methyl]pterins were converted to their respective nitrile oxides in the presence of dipolarophiles to give side-chain isoxazoles and isoxazolines as potential intermediates for the construction of multifunctional C-6 pterin substituents.
Pteridines. 50. Unequivocal total synthesis of deoxyurothione