The invention discloses an
aryl nitrogen mustard piperazinium derivative with a general formula I or pharmaceutically acceptable salt thereof, wherein R<1> is H, a saturated or unsaturated straight-chain or branched-chain
alkyl group, and
aryl or substituted
aryl, and the
alkyl group can be freely substituted by substitutional groups selected from halogens, amino groups, substituted amino groups, hydroxyl groups, cyano groups,
nitryl, aryl and substituted aryl; A is saturated or unsaturated straight-chain or branched-chain alkylene, and the alkylene can be substituted by amido; Ar is
arylene; R<2> and R<3> is independently
hydrogen or methyl; n and m are integers within the range of between 0 and 2, and the n and the m are not zero synchronously; B and D independently represent straight-chain or branched-chain
alkyl groups of C1-C3, and straight-chain or branched-chain alkylenes of the C1-C3; Y is -CHR4-, -O-, -S-, -S(O)-, -SO2-, -NR<4>-, and substituted or unsubstituted
phenylene, wherein R<4> is H, saturated or unsaturated alkyl groups with 1 to 6 carbon atoms, optionally substituted or unsubstituted aryl, or aromatic heterocyclic-substituted methyl or ethyl; or when the B and the D are alkyl groups, the Y does not exist, that is, the derivative is ring-opened and does not form a spiro ring; and X<-> is pharmaceutically acceptable inorganic or organic anions.