title: 3-Substituted 5,7-dimethylpyrazolo(1,5-a)pyrimidines, 3',5'-cyclic-AMP phosphodiesterase inhibitors. 1.
mesh_terms: D000818:Animals; D002417:Cattle; D000242:Cyclic AMP; D066298:In Vitro Techniques; D007668:Kidney / Q000201:enzymology; D007700:Kinetics; D008168:Lung / Q000201:enzymology; D009206:Myocardium / Q000201:enzymology; D010726:Phosphodiesterase Inhibitors; D011720:Pyrazoles / Q000138:chemical synthesis / Q000494:pharmacology; D011743:Pyrimidines / Q000138:chemical synthesis* / Q000494:pharmacology; D011817:Rabbits
chemical_list: D010726:Phosphodiesterase Inhibitors; D011720:Pyrazoles; D011743:Pyrimidines; D000242:Cyclic AMP