Abstract:
The invention relates to compounds of use as targeted cytotoxic agents and methods of use thereof. In particular, the invention relates to prodrugs that are substantially resistant to human AKR1C3 enzyme metabolism, methods of cell ablation using said compounds and methods of treatment of cancer and other hyperproliferative disorders using said compounds.
Abstract:
This invention relates to pyrrolocarbazole derivatives according formula I wherein R1, R2, R7, R8, R9, X and Y are as defined in the specification wherein said derivatives specifically inhibit one or both of the checkpoint kinases Wee1 and Chk1
Abstract translation:本发明涉及式I的吡咯并咔唑衍生物,其中R 1,R 2,R 7,R 8, R 9,X和Y如说明书中所定义,其中所述衍生物特异性抑制检查点激酶Wee1和Chk1中的一个或两个
Abstract:
The invention relates generally to bacterial nitroreductase enzymes and methods of use thereof: more particularly, although not exclusively, the enzymes have use in non-invasive imaging techniques, monitoring of therapeutic cell populations and gene-directed enzyme prodrug therapy. The invention also relates to the use of bacterial nitroreductase enzymes in radioimaging and/or ablation of biological agents and to compositions of use in such methods.
Abstract:
The invention provides kinase inhibitors of Formula I: wherein either: (1) R1 is H, and (a) R2 is (3-chlorobenzyl)oxy- and R3 is chloro; (b) R2 and R3, together with the carbon atoms to which they are attached, form 1-(3-fluorobenzyl)-1H-pyrazole; (c) R2 is 2-pyridinylmethoxy and R3 is chloro; (d) R2 and R3 are both chloro; (e) R2 is chloro and R1 is bromo; (f) R2 and R3 are both bromo; (g) R2 is fluoro and R3 is ethynyl; (h) R2 is chloro and R3 is ethynyl; (i) R2 is bromo and R3 is ethynyl; (j) other than when R1 is in the 3-position in combination with R3, in the 4-position, R2 is bromo and R3 is fluoro; (k) R2 is 2-pyridinylmethoxy and R3 is fluoro; or (l) R2 is 2-pyridinylmethoxy and R1 is bromo; or (2) at least one of R1, R2 and R3 is selected from benzyloxy, 3-chlorobenzyloxy and 2-pyridinylmethoxy and when at least one of R1, R2 and R3 is not benzyloxy, 3-chlorobenzyloxy or 2-pyridinylmethoxy, each of the others is independently selected from H, halogen, and C2-C4 alkynyl, with the proviso that when one of R1, R2 and R3 is benzyloxy or 2-pyridinylmethoxy, the other two of R1, R2 and R3 are not H; or (3) two of R1, R2 and R3, together with the carbon atoms to which they are attached, form 1-(3-fluorobenzyl)-1H-pyrazole; and the other is selected from H, halogen and C2-C4 alkynyl. Also provided are reductive prodrugs, comprising a kinase inhibitor as defined above and a reductive trigger linked directly or indirectly to a nitrogen of the kinase inhibitor. Further provided are pharmaceutical compositions, comprising the kinase inhibitors or the prodrugs, and the use of such compositions in therapy, in particular for treating cancer.
Abstract:
The invention provides novel prodrug compounds comprising a kinase inhibitor and a reductively-activated fragmenting aromatic nitroheterocycle or aromatic nitrocarbocycle trigger, where the compound carries a positive charge. In preferred embodiments, the compounds are of Formula I: where: X is any negatively charged counterion; R1 is a group of the formula —(CH2)nTr, where Tr is an aromatic nitroheterocycle or aromatic nitrocarbocycle and —(CH2)nTr acts as a reductively-activated fragmenting trigger; and n is an integer from 0 to 6; R2, R3 and R4 may each independently be selected from aliphatic or aromatic groups of a tertiary amine kinase inhibitor (R2)(R3)(R4)N, or two of R2, R3, and R4 may form an aliphatic or aromatic heterocyclic amine ring of a kinase inhibitor, or one of R2, R3 and R4 may be absent and two of R2, R3 and R4 form an aromatic heterocyclic amine ring of a kinase inhibitor. The compounds of the invention are useful in treating proliferative diseases such as cancer.
Abstract:
The invention relates generally to bacterial nitroreductase enzymes and methods of use thereof: More particularly, although not exclusively, said enzymes have use in non-invasive imaging techniques, monitoring of therapeutic cell populations and gene-directed enzyme prodrug therapy. The invention also relates to the use of bacterial nitroreductase enzymes in radioimaging and/or ablation of biological agents and to compositions of use in such methods.
Abstract:
The invention relates to compounds of use as targeted cytotoxic agents and methods of use thereof. In particular, the invention relates to prodrugs that are substantially resistant to human AKR1C3 enzyme metabolism, methods of cell ablation using said compounds and methods of treatment of cancer and other hyperproliferative disorders using said compounds.
Abstract:
The invention provides kinase inhibitors of Formula I: wherein either: (1) R1 is H, and (a) R2 is (3-chlorobenzyl)oxy-and R3 is chloro; (b) R2 and R3, together with the carbon atoms to which they are attached, form 1-(3-fluorobenzyl)-1H-pyrazole; (c) R2 is 2-pyridinylmethoxy and R3 is chloro; (d) R2 and R3 are both chloro; (e) R2 is chloro and R1 is bromo; (f) R2 and R3 are both bromo; (g) R2 is fluoro and R3 is ethynyl; (h) R2 is chloro and R3 is ethynyl; (i) R2 is bromo and R3 is ethynyl; (j) other than when R1 is in the 3-position in combination with R3, in the 4-position, R2 is bromo and R3 is fluoro; (k) R2 is 2-pyridinylmethoxy and R3 is fluoro; or (l) R2 is 2-pyridinylmethoxy and R1 is bromo; or (2) at least one of R1, R2 and R3 is selected from benzyloxy, 3-chlorobenzyloxy and 2-pyridinylmethoxy and when at least one of R1, R2 and R3 is not benzyloxy, 3-chlorobenzyloxy or 2-pyridinylmethoxy, each of the others is independently selected from H, halogen, and C2-C4 alkynyl, with the proviso that when one of R1, R2 and R3 is benzyloxy or 2-pyridinylmethoxy, the other two of R1, R2 and R3 are not H; or (3) two of R1, R2 and R3, together with the carbon atoms to which they are attached, form 1-(3-fluorobenzyl)-1H-pyrazole; and the other is selected from H, halogen and C2-C4 alkynyl. Also provided are reductive prodrugs, comprising a kinase inhibitor as defined above and a reductive trigger linked directly or indirectly to a nitrogen of the kinase inhibitor. Further provided are pharmaceutical compositions, comprising the kinase inhibitors or the prodrugs, and the use of such compositions in therapy, in particular for treating cancer.
Abstract:
The invention provides novel prodrug compounds comprising a kinase inhibitor and a reductively-activated fragmenting aromatic nitroheterocycle or aromatic nitrocarbocycle trigger, where the compound carries a positive charge. In preferred embodiments, the compounds are of Formula I: where: X is any negatively charged counterion; R1 is a group of the formula —(CH2)nTr, where Tr is an aromatic nitroheterocycle or aromatic nitrocarbocycle and —(CH2)nTr acts as a reductively-activated fragmenting trigger; and n is an integer from 0 to 6; R2, R3 and R4 may each independently be selected from aliphatic or aromatic groups of a tertiary amine kinase inhibitor (R2)(R3)(R4)N, or two of R2, R3, and R4 may form an aliphatic or aromatic heterocyclic amine ring of a kinase inhibitor, or one of R2, R3 and R4 may be absent and two of R2, R3 and R4 form an aromatic heterocyclic amine ring of a kinase inhibitor.The compounds of the invention are useful in treating proliferative diseases such as cancer.