BENZ-FUSED MESOIONIC XANTHIN ANALOGUES AS INHIBITORS OF CYCLIC-AMP PHOSPHODIESTERASEGLENNON RA; GAINES JJ; ROGERS ME et al.1981; J. MED. CHEM.; ISSN 0022-2623; USA; DA. 1981; VOL. 24; NO 6; PP. 766-769; BIBL. 12 REF.Article

Carbon-13 nuclear magnetic resonance spectra of some mesoionic xanthine analogsMBAGWU, G. O; BASS, R. G; GLENNON, R. A et al.Organic magnetic resonance. 1983, Vol 21, Num 9, pp 527-531, issn 0030-4921Article

8-azaxanthine derivatives as antagonists of adenosine receptorsFRANCHETTI, P; MESSINI, L; CAPPELLACCI, L et al.Journal of medicinal chemistry (Print). 1994, Vol 37, Num 18, pp 2970-2975, issn 0022-2623Article

On-line mass spectrometric insights into electrochemical reactions : oxidation of thiopurinesVOLK, K. J; YOST, R. A; BRAJTER-TOTH, A et al.Journal of the Electrochemical Society. 1990, Vol 137, Num 6, pp 1764-1771, issn 0013-4651, 8 p.Article

Cyclic homologs of xanthines. I: Imidazo[4,5-e][1,4]diazepines-5,8-dionesBRIDSON, P. K; WEIRICH, T. P.Journal of heterocyclic chemistry. 1988, Vol 25, Num 4, pp 1179-1182, issn 0022-152XArticle