Abstract:
AimTo search for new compounds with strong anti-inflammatory activity and low gastrointestinal (GI) side effects. MethodsA series of
P-(methanesulfonyl)styrene-linked cyclic ketone derivatives were synthesized. Their anti-inflammatory activities against xylene-induced mice ear swelling and carrageenan-induced rat paw edema were evaluated, and their GI side effects in the rats were examined. ResultsNine target compounds (ZA
1-9) were obtained, and their structures were determined by IR,
1HNMR, MS and elemental analysis. Compared with controls diclofenac (DC) and rofecoxib (RC), ZA
3,5-9 showed no significant difference in anti-inflammatory activity against xylene-induced ear swelling in mice. ZA
3,7,8 showed potency comparable to DC and RC (
P>0.05) and ZA
6 was more potent than DC and RC (
P0.05) in the treatment of carrageenan-induced rat paw edema. ZA
3,5-9 showed less GI side effects than DC (
P0.05,
P<0.01) and no significant difference compared with RC (
P>0.05). Conclusion
P- (Methanesulfonyl) styrene-linked cyclic ketone derivatives showed strong anti-inflammatory activity but few GI side effects and deserve to be further investigated.