| abstract |
Tetrazole amide derivatives of heterocyclic alkenyl acids, of general formula ##STR1## in which Y=NH, O or S when m=1; n Y=N when m=2; n m=1 or 2; n l=0 or 4; n R=H, C 1-4 alkyl, Cl, Br, CF 3 , CH 2 OCOCH 3 , or OCH 2 -Ph; n R 1 =H, alkaline metal or alkaline earth metal, the double bond of the alkenyl chain being of trans or cis configuration and the possible benzene ring being unsubstituted or substituted. n Such derivatives possess high antiallergic activity. |