Abstract
New series of 5-alkoxy-benzopyranopyrimidine derivatives were developed from the chemical modulation of the substituent in position 2 of the scaffold, with the aim to produce analgesic/antiphlogistic agents more potent than analogues previously reported. The 2-hydrazino derivatives exhibited a good analgesic activity in writhing test; the analgesic doses of the compounds did not affect mice spontaneous locomotor activity thus any confounding sedative effect could be excluded. These derivatives revealed an aspirin-like profile with a strong inhibition of AA-induced platelet aggregation, probably due to a strong, non selective, inhibition of cyclooxygenases. In spite of the inhibition of COX activity displayed in vitro, the compounds did not cause gastric damage in rats after acute oral administration. A different pharmacological profile was observed for the 2-azido derivatives, particularly in vivo.
Keywords: 2-Amino/Azido/Hydrazino-5-alkoxy-5H-[1]benzopyrano[4,3-d]pyrimidines, analgesic activity, antinociceptive activity, antiphlogistic activity, antiplatelet activity, COX1/COX2 inhibition
Medicinal Chemistry
Title: 2-Amino/Azido/Hydrazino-5-alkoxy-5H-[1]benzopyrano[4,3-d]pyrimidines:Synthesis and Pharmacological Evaluation
Volume: 3 Issue: 2
Author(s): O. Bruno, C. Brullo, F. Bondavalli, A. Ranise, S. Schenone, M. Tognolini, V. Ballabeni and E. Barocelli
Affiliation:
Keywords: 2-Amino/Azido/Hydrazino-5-alkoxy-5H-[1]benzopyrano[4,3-d]pyrimidines, analgesic activity, antinociceptive activity, antiphlogistic activity, antiplatelet activity, COX1/COX2 inhibition
Abstract: New series of 5-alkoxy-benzopyranopyrimidine derivatives were developed from the chemical modulation of the substituent in position 2 of the scaffold, with the aim to produce analgesic/antiphlogistic agents more potent than analogues previously reported. The 2-hydrazino derivatives exhibited a good analgesic activity in writhing test; the analgesic doses of the compounds did not affect mice spontaneous locomotor activity thus any confounding sedative effect could be excluded. These derivatives revealed an aspirin-like profile with a strong inhibition of AA-induced platelet aggregation, probably due to a strong, non selective, inhibition of cyclooxygenases. In spite of the inhibition of COX activity displayed in vitro, the compounds did not cause gastric damage in rats after acute oral administration. A different pharmacological profile was observed for the 2-azido derivatives, particularly in vivo.
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Bruno O., Brullo C., Bondavalli F., Ranise A., Schenone S., Tognolini M., Ballabeni V. and Barocelli E., 2-Amino/Azido/Hydrazino-5-alkoxy-5H-[1]benzopyrano[4,3-d]pyrimidines:Synthesis and Pharmacological Evaluation, Medicinal Chemistry 2007; 3 (2) . https://dx.doi.org/10.2174/157340607780059549
DOI https://dx.doi.org/10.2174/157340607780059549 |
Print ISSN 1573-4064 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6638 |
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