| abstract |
A heparanase activity inhibitor capable of efficiently inhibiting heparanase activity is provided. A tetrazole derivative represented by the following general formula (I) (In the general formula (I), R1 represents an aryl group which may be substituted with a lower alkyl group, R2 represents a hydroxyl group, an alkoxy group having 1 to 6 carbon atoms, or a linear, branched or cyclic alkyl group having 4 to 7 carbon atoms which may be substituted with an amino group. ) And the like as an active ingredient. [Selection figure] None |