Abstract
AN examination of the ultra-violet spectral absorption of xanthine and certain methylated xanthines suggests that we possess a method of distinguishing between derivatives of xanthine (isoxanthine) which are substituted in the 7 or 9 positions, and that this method may be used to assign to one or other position the carbohydrate radical in the natural and synthetic purine glycosides.
Similar content being viewed by others
Article PDF
References
Fischer and Helferich, Ber., 47, 210; 1914.
Pryde and Williams, J. Chem. Soc., 640; 1933.
J. Chem. Soc., 662; 1933.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
GULLAND, J., HOLIDAY, E. Spectral Absorption of Methylated Xanthines and Constitution of the Purine Nucleosides. Nature 132, 782 (1933). https://doi.org/10.1038/132782b0
Issue Date:
DOI: https://doi.org/10.1038/132782b0
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.