A medicament comprising as an active ingredient a compound or a physiologically acceptable salt thereof represented by general formula (I):
wherein R
1
represents a dicarba-closo-dodecaboran-yl which may be substituted with a lower alkyl group, a lower alkenyl group, carboxyl group or the like; R
2
represents carboxyl group, a lower alkoxycarbonyl group, or hydroxyl group; and X represents a single bond or a linking group such as —CO—Y
1
— wherein Y
1
represents oxygen or —N(R
3
)— wherein R
3
represents hydrogen or a lower alkyl.
一种药物,包含一种以通式(I)表示的化合物或其生理上可接受的盐作为活性成分,其中R1表示一种二羧基-克洛索-十二
硼烷基,该基团可以被低碳烷基、低碳烯基、羧基或类似基团取代;R2表示羧基、低碳酰氧基或羟基;X表示单键或连接基团,例如—CO—Y1—,其中Y1表示氧或—N(R3)—,其中R3表示氢或低碳基。