title: 1-Ethyl-4-(isopropylidenehydrazino)-1H-pyrazolo-(3,4-b)-pyridine-5-carboxylic acid, ethyl ester, hydrochloride (SQ 20009)--a potent new inhibitor of cyclic 3',5'-nucleotide phosphodiesterases.
mesh_terms: D000311:Adrenal Glands / Q000201:enzymology; D000645:Ammonium Sulfate; D000818:Animals; D001921:Brain / Q000201:enzymology; D002110:Caffeine / Q000494:pharmacology; D002264:Carboxylic Acids / Q000494:pharmacology; D002415:Cats; D002417:Cattle; D000242:Cyclic AMP; D006152:Cyclic GMP; D004952:Esters / Q000494:pharmacology; D006834:Hydrazines / Q000494:pharmacology*; D006868:Hydrolysis; D066298:In Vitro Techniques; D007700:Kinetics; D008297:Male; D009206:Myocardium / Q000201:enzymology; D010726:Phosphodiesterase Inhibitors; D010727:Phosphoric Diester Hydrolases / Q000032:analysis; D011720:Pyrazoles / Q000494:pharmacology*; D011725:Pyridines / Q000494:pharmacology*; D051381:Rats; D013806:Theophylline / Q000494:pharmacology
chemical_list: D002264:Carboxylic Acids; D004952:Esters; D006834:Hydrazines; D010726:Phosphodiesterase Inhibitors; D011720:Pyrazoles; D011725:Pyridines; D002110:Caffeine; D013806:Theophylline; D000242:Cyclic AMP; D010727:Phosphoric Diester Hydrolases; D006152:Cyclic GMP; D000645:Ammonium Sulfate