Bioorganic and Medicinal Chemistry Letters
Bioorganic and Medicinal Chemistry Letters
5 years ago

Synthesis, potential anti-inflammatory and analgesic activities study of (S)-N-substituted-1-phenyl-3,4-dihydroisoquinoline-2(1H)-carboxamides

Synthesis, potential anti-inflammatory and analgesic activities study of (S)-N-substituted-1-phenyl-3,4-dihydroisoquinoline-2(1H)-carboxamides
A series of (S)-N-substitued-1-phenyl-3,4-dihydroisoquinoline-2(1H)-carboxamide derivatives were designed, synthesized and evaluated for their anti-inflammatory and analgesic effects in vivo. Among the synthesized compounds 2a and 2n showed the best anti-inflammatory activity (inhibition rate: 95% and 92.7%, respectively) and analgesic effect (inhibition rate: 100% and 100%, respectively), which was greater than that or nearly equivalent to that of indomethacin. Compounds 2a and 2n were selected to test their inhibitory effects against ovine COX-1 and COX-2 using the cyclooxygenase inhibition assay in vitro. Compounds 2a and 2n are weak inhibitors of COX-1 isozyme but displayed moderate COX-2 isozyme inhibitory effects (IC50 =0.47μM and 1.63μM, respectively) and COX-2 selectivity indexes (SI=11.5 and 4.8). Furthermore, compound 2a was more inhibitors of COX-2 isozyme active than the reference drug celecoxib.

Publisher URL: www.sciencedirect.com/science

DOI: S0960894X17306054

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