摘要 |
A compound having the general formula (I) or a pharmacologically acceptable salt thereof: X—NH—Y—NH—R1  (I) [wherein X represents R2—SO2— in which R2 represents an optionally substituted lower alkyl group or phenyl group; Y represents a group selected from the group consisting of —R3—NH—R4—, —R5—NH—R6—NH—R7—, —R8—NH—R9—NH—R10—NH—R11— and —R12—NH—R13—NH—R14—NH—R15— in which R3 to R15 each independently represent a C3 to C5 alkylene group; and R1 represents hydrogen or an optionally substituted lower alkyl group, with the proviso that the case where X represents a tosyl group, Y represents —(CH2)3—NH—(CH2)4—NH—(CH2)3— and R1 represents hydrogen is excepted].
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