A compound of Formula or a pharmaceutically acceptable salt thereof: wherein each of X 1 and X 2 independently, is halo or OSO 2 R a, in which R a is alkyl, alkenyl, or alkynyl; Q is cycloalkyl, cycloalkenyl, heterocycloalkenyl, aryl, or heteroaryl, each of which, independently, is optionally substituted with alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, cycloalkenyl, heterocycloalkenyl, aryl, heteroaryl, halo, nitro, oxo, -CH=NH, cyano, alkyl-R b, CH=NOR b, OR b, OC R b, OC OR b, OC SR b, SR b, C R b, C OR b, C SR b, C NR c R d, SOR b, SO 2 R b, NR c R d, alkyl-NR c R d, or N(R c)C R d, in which each of R b, R c, and R d, independently, is H, alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, halo, cyano, nitro, amino, hydroxyl, alkylamino, haloalkyl, or alkoxy; Z is deleted or (CH 2) m in which m is an integer from 1 to 10; and each of R 1 and R 2 independently, is H, alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, cycloalkenyl, heterocycloalkenyl, aryl, heteroaryl, halo, nitro, oxo, -CH=NH, cyano, alkyl-R b, CH=NOR b, OR b, OC R b, OC OR b, OC SR b, SR b, C R b, C OR b, C SR b, C NR c R d, SOR b, SO 2 R b, NR c R d, alkyl-NR c R d, or N(R c)C R d, wherein: cycloalkyl refers to a saturated hydrocarbon ring system having 3 to 30 carbon atoms; cycloalkenyl refers to a non-aromatic hydrocarbon ring system having 3 to 30 carbons and one or more double bonds; heterocycloalkyl refers to a nonaromatic 5-8 membered monocyclic, 8-12 membered bicyclic, or 11-14 membered tricyclic ring system having one or more heteroatoms; heterocycloalkenyl refers to a nonaromatic 5-8 membered monocyclic, 8-12 membered bicyclic, or 11-14 membered tricyclic ring system having one or more heteroatoms and one or more double bonds; aryl refers to a 6-carbon monocyclic, 10-carbon bicyclic, 14-carbon tricyclic aromatic ring system; heteroaryl refers to an aromatic 5-8 membered monocyclic, 8-12 membered bicyclic, or 11-14 membered tricyclic ring system having one or more heteroatoms; alkyl refers to a straight or branched hydrocarbon containing 1-20 carbon atoms; alkenyl refers to a straight or branched hydrocarbon containing 2-20 carbon atoms and one or more double bonds; and alkynyl refers to a straight or branched hydrocarbon containing 2-20 carbon atoms and one or more triple bonds. each of X 1 and X 2 independently, is halo or OSO 2 R a, in which R a is alkyl, alkenyl, or alkynyl; Q is cycloalkyl, cycloalkenyl, heterocycloalkenyl, aryl, or heteroaryl, each of which, independently, is optionally substituted with alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, cycloalkenyl, heterocycloalkenyl, aryl, heteroaryl, halo, nitro, oxo, -CH=NH, cyano, alkyl-R b, CH=NOR b, OR b, OC R b, OC OR b, OC SR b, SR b, C R b, C OR b, C SR b, C NR c R d, SOR b, SO 2 R b, NR c R d, alkyl-NR c R d, or N(R c)C R d, in which each of R b, R c, and R d, independently, is H, alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, halo, cyano, nitro, amino, hydroxyl, alkylamino, haloalkyl, or alkoxy; Z is deleted or (CH 2) m in which m is an integer from 1 to 10; and each of R 1 and R 2 independently, is H, alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, cycloalkenyl, heterocycloalkenyl, aryl, heteroaryl, halo, nitro, oxo, -CH=NH, cyano, alkyl-R b, CH=NOR b, OR b, OC R b, OC OR b, OC SR b, SR b, C R b, C OR b, C SR b, C NR c R d, SOR b, SO 2 R b, NR c R d, alkyl-NR c R d, or N(R c)C R d, wherein: cycloalkyl refers to a saturated hydrocarbon ring system having 3 to 30 carbon atoms; cycloalkenyl refers to a non-aromatic hydrocarbon ring system having 3 to 30 carbons and one or more double bonds; heterocycloalkyl refers to a nonaromatic 5-8 membered monocyclic, 8-12 membered bicyclic, or 11-14 membered tricyclic ring system having one or more heteroatoms; heterocycloalkenyl refers to a nonaromatic 5-8 membered monocyclic, 8-12 membered bicyclic, or 11-14 membered tricyclic ring system having one or more heteroatoms and one or more double bonds; aryl refers to a 6-carbon monocyclic, 10-carbon bicyclic, 14-carbon tricyclic aromatic ring system; heteroaryl refers to an aromatic 5-8 membered monocyclic, 8-12 membered bicyclic, or 11-14 membered tricyclic ring system having one or more heteroatoms; alkyl refers to a straight or branched hydrocarbon containing 1-20 carbon atoms; alkenyl refers to a straight or branched hydrocarbon containing 2-20 carbon atoms and one or more double bonds; and alkynyl refers to a straight or branched hydrocarbon containing 2-20 carbon atoms and one or more triple bonds. cycloalkyl refers to a saturated hydrocarbon ring system having 3 to 30 carbon atoms; cycloalkenyl refers to a non-aromatic hydrocarbon ring system having 3 to 30 carbons and one or more double bonds; heterocycloalkyl refers to a nonaromatic 5-8 membered monocyclic, 8-12 membered bicyclic, or 11-14 membered tricyclic ring system having one or more heteroatoms; heterocycloalkenyl refers to a nonaromatic 5-8 membered monocyclic, 8-12 membered bicyclic, or 11-14 membered tricyclic ring system having one or more heteroatoms and one or more double bonds; aryl refers to a 6-carbon monocyclic, 10-carbon bicyclic, 14-carbon tricyclic aromatic ring system; heteroaryl refers to an aromatic 5-8 membered monocyclic, 8-12 membered bicyclic, or 11-14 membered tricyclic ring system having one or more heteroatoms; alkyl refers to a straight or branched hydrocarbon containing 1-20 carbon atoms; alkenyl refers to a straight or branched hydrocarbon containing 2-20 carbon atoms and one or more double bonds; and alkynyl refers to a straight or branched hydrocarbon containing 2-20 carbon atoms and one or more triple bonds.