Synthesis and structure-activity relationships of pyrazolo[4,3-d]pyrimidin-7-ones as adenosine receptor antagonists
作者:Harriet W. Hamilton、Daniel F. Ortwine、Donald F. Worth、James A. Bristol
DOI:10.1021/jm00384a016
日期:1987.1
5-substituted pyrazolo[4,3-d]pyrimidines that were synthesized during the course of the analysis. With use of the correlation as a guide, one additional 5-phenylpyrazolo[4,3-d]pyrimidine containing a 4-[[(dimethylamino)ethyl]amino]sulfonyl substituent to improve aqueous solubility was prepared. On the basis of the high correlation between adenosinebinding affinities of analogously substituted xanthines and pyrazolo-[4