| abstract |
A tetrazoleacetic acid derivative represented by the following general formula (I): ##STR1## [in Formula (I), R 1 represents a hydrogen atom or a lower alkyl group; R 2 , R 3 and R 4 are the same or different from each other and are selected from the group consisting of hydrogen, lower alkyl, halogen, lower haloalkyl, hydroxy and lower alkoxy; and tetrazol group is substituted at 1- or 2-position of naphthyl group] except for [5-(1-naphthyl)tetrazol-1-yl]acetic acid and ethyl ester thereof, or a salt thereof. |