Patent ID: 6838574

Claim:
A medicament composition comprising as an active ingredient a compound or a physiologically acceptable salt thereof represented by the following general formula (I): wherein R 1 represents a dicarba-closo-dodecaboran-yl group which may be substituted with a lower alkyl group; R 2 represents carboxyl group or a lower alkoxy carbonyl group; X represents a linking group selected from the group consisting of the groups represented by the following formulas: wherein, Y 1 , Y 2 , Y 3 , Y 4 , Y 5 , Y 6 , and Y 7 independently represent oxygen atom or —N(R 3 )— wherein R 3 represents hydrogen atom or a lower alkyl group; Y 8 represents oxygen atom, —N(R 4 )— wherein R 4 represents hydrogen atom or a lower alkyl group, —CO—, —CH 2 —, or —C(═CH 2 )—; R 5 , R 6 , and R 7 independently represents hydrogen atom or one or more substituents on the phenyl group; R 8 represents a lower alkyl group or an aryl group which may be substituted, R 9 represents a lower alkyl group, and R 10 represents an aryl group which may be substituted.