title: Synthesis and antiulcer activity of (E)-5-[2-(3-pyridyl)ethenyl]-1H,7H-pyrazolo [1,5-a]pyrimidine-7-ones.
abstract: A series of (E)-5-[2-(3-pyridyl)ethenyl]-1H,7H-pyrazolo-[1,5-a]pyrimidine-7-ones were synthesized and evaluated for the inhibition of stress-induced gastric ulcers in the rat after oral administration. Several molecules were found to be very active. The particularly interesting compound (E)-1-(3-chlorophenyl)-5-[2-(3-pyridyl)ethenyl]-1H,7H-pyrazolo[1,5-a]- pyrimidine-7-one was chosen for wider pharmacological investigation.
mesh_terms: D000818:Animals; D000897:Anti-Ulcer Agents / Q000138:chemical synthesis*; D055598:Chemical Phenomena; D002621:Chemistry; D005750:Gastric Juice / Q000378:metabolism; D008297:Male; D010276:Parasympatholytics; D011720:Pyrazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D011744:Pyrimidinones / Q000138:chemical synthesis* / Q000494:pharmacology; D051381:Rats; D011919:Rats, Inbred Strains; D013276:Stomach Ulcer / Q000209:etiology / Q000517:prevention & control*; D013315:Stress, Psychological / Q000150:complications
chemical_list: D000897:Anti-Ulcer Agents; D010276:Parasympatholytics; D011720:Pyrazoles; D011744:Pyrimidinones