2-(1,1'-Biphenyl-4-yl)- 1,2,4-triazole[5,1-a] isoquinoline (L 14105), a potential orally active contragestational agent for the bitch: studies in the rat, hamster and dog.
In the search for second generation post-coital pregnancy terminating agents belonging to the class of 2-phenyl-triazole[5,1-a]isoquinolines, the contragestational profile of (1,1'-biphenyl)-4-yl-1,2,4-triazole[5,1-a]isoquinoline, referred to as L 14105, was investigated in hamsters, rats, and bitches. Following subcutaneous or intramuscular administration in oily vehicles, L 14105 shows a very high anti-fertility activity in the three animal species, being from 1.8 to 2.5 times more effective than the parent drug, DL 717-IT. Unlike DL 717-IT, L 14105 possesses a high activity when administered by the oral route. The results obtained in the bitch make it confirm its potential use as a new orally active agent for the interruption of unwanted pregnancies.
D000019:Abortifacient Agents / Q000494:pharmacology*; D000020:Abortifacient Agents, Nonsteroidal / Q000494:pharmacology*; D000284:Administration, Oral; D000818:Animals; D006224:Cricetinae; D004285:Dogs; D005260:Female; D007546:Isoquinolines / Q000008:administration & dosage / Q000097:blood / Q000494:pharmacology*; D007700:Kinetics; D008647:Mesocricetus; D011247:Pregnancy; D011270:Pregnancy, Animal / Q000187:drug effects*; D051381:Rats; D011919:Rats, Inbred Strains; D013045:Species Specificity; D014230:Triazoles / Q000008:administration & dosage / Q000097:blood / Q000494:pharmacology*
D000019:Abortifacient Agents; D000020:Abortifacient Agents, Nonsteroidal; D007546:Isoquinolines; D014230:Triazoles; C050411:2-(1,1'-biphenyl-4-yl)-1,2,4-triazole(5,1-a)isoquinoline