Non-carboxylic antiinflammatory compounds. III. N-(4,6-Dimethylpyridin-2-yl)arylcarboxamides and arylthiocarboxamides acting as brain edema inhibitors
作者:J.M.H. Robert、S Robert-Piessard、J Courant、G Le Baut、B Robert、F Lang、J.Y. Petit、N Grimaud、L Welin
DOI:10.1016/0223-5234(96)88310-3
日期:1995.1
Pharmacomodulation of the non-carboxylic NSAID N-(4,6-dimethylpyridin-2-yl)benzamide 1 led to the synthesis of structurally related furan, thiophene and pyrrole carboxamides 3-14. The derivatives benzenethiocarboxamides 15-18 and heteroaryl-thiocarboxamides 19-22 were also prepared by oxygen/sulfur exchange; this reaction was more efficiently carried out by P4S10 than by Lawesson's reagent. The 20 synthesized compounds were evaluated against peripheral edema by a foot-pad carrageenin-induced edema test. Amides 3-5, 8, 9, 11, 12 and 14 were most active, exhibiting > 90% inhibition after oral administration of 0.8 mmol . kg(-1). Two amides, 3 and 5, were selected for evaluation of their inhibitory activity in PLA(2)-induced brain edema and were found to be more potent than dexamethasone after LP administration.