Novel ethyl-5-amino-3-methylthio-1H-pyrazole-4-carboxylates: Synthesis and pharmacological activity
A series of novel ethyl-5-amino-3-methylthio-1H-pyrazole-4-carboxylates 3a–j were synthesized from condensation of various hydrazides 2a–j with ketene dithioacetal. The synthesized compounds were screened for in vivo analgesic and anti-inflammatory activities using acetic acid writhing test in mice...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2016-05-01
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| Series: | Journal of Saudi Chemical Society |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1319610312000889 |
| Summary: | A series of novel ethyl-5-amino-3-methylthio-1H-pyrazole-4-carboxylates 3a–j were synthesized from condensation of various hydrazides 2a–j with ketene dithioacetal. The synthesized compounds were screened for in vivo analgesic and anti-inflammatory activities using acetic acid writhing test in mice and carrageenan-induced paw edema test in rat, respectively. Diclofenac sodium was used as a standard drug for comparison. Compounds 3a, 3c and 3d exhibited significant analgesic and anti-inflammatory activities at a dose of 25 mg/kg and showed quite less ulcerogenic index in the range of 0.9–1.12 whereas diclofenac sodium showed 3.10. |
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| ISSN: | 1319-6103 |