Design and synthesis of new 2-aryl, 3-benzyl-(1,3-oxazolidine or 1,3-thiazolidine)-4-ones as selective cyclooxygenase (COX-2) inhibitors
摘要:
A new series of 2-aryl, 3-benzyl-(1,3-oxazolidine or 1,3-thiazolidine)-4-ones, possessing a methylsulfonyl pharmacophore, were synthesized to evaluate their biological activities as selective cyclooxygenase-2 (COX-2) inhibitors. In vitro COX-1 and COX-2 isozyme inhibition studies were performed to acquire structure-activity relationship data with respect to the point that molecular modeling studies showed that designed compounds bind in the primary binding site such that the C-2 para-SO2Me substituent inserts into the 2A degrees pocket present in COX-2 enzyme. COX-1 and COX-2 inhibition studies showed that all compounds were selective inhibitors of the COX-2 isozyme with IC50 values in the highly potent 0.21 to 0.34 mu M range, and COX-2 selectivity indexes in the 222.3 to > 476 range. 3-Benzyl-2-(4-methylsulfonylphenyl)-1,3-oxazolidine-4(5H)-one was identified as the most potent (IC50 = 0.21 mu M) and selective (S.I. > 476) COX-2 inhibitor among the synthesized compounds. It also was a more selective COX-2 inhibitor than the parent reference compound celecoxib (S.I. > 403).
Design and synthesis of new 2-aryl, 3-benzyl-(1,3-oxazolidine or 1,3-thiazolidine)-4-ones as selective cyclooxygenase (COX-2) inhibitors
作者:A. Zarghi、H. Arefi、O. G. Dadrass、S. Torabi
DOI:10.1007/s00044-009-9230-8
日期:2010.11
A new series of 2-aryl, 3-benzyl-(1,3-oxazolidine or 1,3-thiazolidine)-4-ones, possessing a methylsulfonyl pharmacophore, were synthesized to evaluate their biological activities as selective cyclooxygenase-2 (COX-2) inhibitors. In vitro COX-1 and COX-2 isozyme inhibition studies were performed to acquire structure-activity relationship data with respect to the point that molecular modeling studies showed that designed compounds bind in the primary binding site such that the C-2 para-SO2Me substituent inserts into the 2A degrees pocket present in COX-2 enzyme. COX-1 and COX-2 inhibition studies showed that all compounds were selective inhibitors of the COX-2 isozyme with IC50 values in the highly potent 0.21 to 0.34 mu M range, and COX-2 selectivity indexes in the 222.3 to > 476 range. 3-Benzyl-2-(4-methylsulfonylphenyl)-1,3-oxazolidine-4(5H)-one was identified as the most potent (IC50 = 0.21 mu M) and selective (S.I. > 476) COX-2 inhibitor among the synthesized compounds. It also was a more selective COX-2 inhibitor than the parent reference compound celecoxib (S.I. > 403).