Synthesis and pharmacological study of ethyl 1-methyl-5-[2-substituted-4-oxo-3(4H)-quinazolinyl]-1H-pyrazole-4-acetates
摘要:
A number of new ethyl 1-methyl-5-[4-oxo-3(4H)-quinazolinyl]-1H-pyrazole-4-acetates substituted at the 2 position of the quinazolinone ring were prepared. The compounds were tested for analgesic and antiinflammatory activities, as well as for their acute toxicity and ulcerogenic effect. The 2-methyl, 2-ethyl and 2-phenyl derivatives proved to be more active than acetylsalicylic acid and phenylbutazone in the phenylbenzoquinone writhing test. The 2-methyl derivative was also as active as acetylsalicylic acid in the carrageenin paw oedema test. All the compounds showed very reduced ulcerogenic effects and systemic toxicity.
Synthesis and pharmacological study of ethyl 1-methyl-5-[2-substituted-4-oxo-3(4H)-quinazolinyl]-1H-pyrazole-4-acetates
摘要:
A number of new ethyl 1-methyl-5-[4-oxo-3(4H)-quinazolinyl]-1H-pyrazole-4-acetates substituted at the 2 position of the quinazolinone ring were prepared. The compounds were tested for analgesic and antiinflammatory activities, as well as for their acute toxicity and ulcerogenic effect. The 2-methyl, 2-ethyl and 2-phenyl derivatives proved to be more active than acetylsalicylic acid and phenylbutazone in the phenylbenzoquinone writhing test. The 2-methyl derivative was also as active as acetylsalicylic acid in the carrageenin paw oedema test. All the compounds showed very reduced ulcerogenic effects and systemic toxicity.
A number of new ethyl 1-methyl-5-[4-oxo-3(4H)-quinazolinyl]-1H-pyrazole-4-acetates substituted at the 2 position of the quinazolinone ring were prepared. The compounds were tested for analgesic and antiinflammatory activities, as well as for their acute toxicity and ulcerogenic effect. The 2-methyl, 2-ethyl and 2-phenyl derivatives proved to be more active than acetylsalicylic acid and phenylbutazone in the phenylbenzoquinone writhing test. The 2-methyl derivative was also as active as acetylsalicylic acid in the carrageenin paw oedema test. All the compounds showed very reduced ulcerogenic effects and systemic toxicity.