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By inserting an oxygen link between the 3-fluorophenyl and the lactone ring
of 5,5-dimethyl-3-(3-fluorophenyl)-4-(4-methanesulfonylphenyl)-2(5H)-furan
one 1 (DFU), analogs with enhanced in vitro COX-2 inhibitory potency as wel
l as in vivo potency in models of inflammation were obtained, (C) 1999 Publ
ished by Elsevier Science Ltd. All rights reserved.