Abstract
In the present study, an efficient synthesis of some Mannich base of 5-methyl-2-[(2-oxo-2H-chromen-3-yl)carbonyl]-2,4-dihydro-3H-pyrazol-3-one (4a–j) have been described by using conventional and non-conventional (microwave) techniques. Microwave assisted reactions showed that require shorter reaction time and good yield. The newly synthesized compounds were screened for their anti-inflammatory, analgesic activity, antioxidant, and antibacterial effects were compared with standard drug. Among the compounds studied, compound (4f) showing nearly equipotent anti-inflammatory and analgesic activity than the standard drug (indomethacin), along with minimum ulcerogenic index. Compounds (4b and 4i) showing 1.06 times more active than ciprofloxacin against tested Gram-negative bacteria.
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