Open AccessSynthesis and antinociceptive activity of novel mannich base derivatives of some new fused 3,5-pyrazolidinedione
Author(s) -
Abhishek Tiwari,
Anita Singh
Publication year - 2014
Publication title -
journal of advanced pharmaceutical technology and research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 33
eISSN - 2231-4040
pISSN - 0976-2094
DOI - 10.4103/2231-4040.126993
Subject(s) - diclofenac sodium , analgesic , chemistry , mannich base , hot plate , acetic acid , mannich reaction , nociception , diclofenac , stereochemistry , combinatorial chemistry , pharmacology , organic chemistry , chromatography , biochemistry , catalysis , medicine , mechanical engineering , receptor , engineering
In the present study, a novel series of mannich bases 1-((1-substituted ethyl-1H-benzo[d] imidazol-2-yl) methyl)-2-substituted phenylpyrazolidine-3,5-dione 3(a-l) were synthesized and evaluated as antinociceptive agents in mice by Eddy's hot plate and acetic acid-induced writhing models. The structures attributed to compounds 3a-3l were elucidated by using IR, 1H-NMR, and Mass spectroscopic techniques. Some compounds showed promising analgesic activity when compared with the standard drug Diclofenac sodium. Results of analgesic activity via hot plate model showed that compounds 3d and 3f were found to be more active than standard drug. Results of analgesic activity via acetic acid-induced writhing model showed that compounds 3a, 3c, 3k, and 3l showed activity which is comparable with the standard drug.