Patent number: 7582642
Abstract: The present invention relates to compounds of formula 1 or pharmaceutically acceptable salts thereof, wherein one of R1 and R2 is methyl, ethyl or isopropyl, and the other is H; R3 and R4 are each independently H, branched or unbranched C1-C6 alkyl, or aryl, and wherein at least one of R3 and R4 is other than H; R5 is a branched or unbranched C1-C5 alkyl group or a C1-C6 cycloalkyl group, each of which may be optionally substituted with one or more OH groups; R6, R7, R8 and R9 are each independently H, halogen, NO2, OH, OMe, CN, NH2, COOH, CONH2, or SO2NH2. A further aspect of the invention relates to pharmaceutical compositions comprising compounds of formula 1, and the use of said compounds in treating proliferative disorders, viral disorders, stroke, alopecia, CNS disorders, neurodegenerative disorders, or diabetes.
Type:
Grant
Filed:
January 11, 2005
Date of Patent:
September 1, 2009
Assignees:
Cyclacel Limited, Cancer Research Technology Limited
Inventors:
Peter Martin Fischer, Michael Jarman, Edward McDonald, Bernard Nutley, Florence Raynaud, Stuart Wilson, Paul Workman
Patent number: 7576091
Abstract: A compound of formula 1, or a pharmaceutically acceptable salt thereof, wherein: X is S, O, or NH; “a” is a single bond; or “a” is a double bond and one of R3 and R4, and one of R5 and R6 are absent; R1 is H; or is selected from an alkyl group, a cycloalkyl group, a heteroaryl group, an aralkyl group, CO-alkyl, SO2-alkyl, CO2R13 and an aryl group, each of which optionally contains one or more heteroatoms, and is optionally substituted with one or more groups selected from R8 and R9; R2 is H, R8, or an alkyl group optionally substituted with one or more R8 groups; R3, R4, R5, and R6 are each independently selected from H, R8, an alkyl group and an alkenyl group, wherein said alkyl and alkenyl groups are optionally substituted with one or more R8 groups; or R3 and R4, and/or R5 and R6 together represent ?O; R7 is H, R8, NH(CH2)nR9, CO(CH2)nR9, NHCO(CH2)nR9, O(CH2)nR9, or an alkyl or phenyl group, each of which is optionally substituted with one or more groups selected from R8 and R9; R8 is OR10, NR10R11, ha
Type:
Grant
Filed:
January 6, 2006
Date of Patent:
August 18, 2009
Assignee:
Cyclacel Limited
Inventors:
Campbell McInnes, Mark Peter Thomas, Shudong Wang, Neil McIntyre, Nicholas Westwood, Peter Martin Fischer
Patent number: 7544689
Abstract: The present invention relates to compounds of formula I or pharmaceutically acceptable salts thereof, wherein one of R1 and R2 is methyl, ethyl or isopropyl, and the other is H; R3 and R4 are each independently H, branched or un branched C1-C6 alkyl, or aryl, and wherein at least one of R3 and R4 is other than H; R5 is a branched or unbranched C1-C5 alkyl group or a C1-C6 cycloalkyl group, each of which may be optionally substituted with one or more OH groups; R6, R7, R8 and R9 are each independently H, halogen, NO2, OH, OMe, CN, NH2, COOH, CONH2, or SO2NH2. A further aspect of the invention relates to pharmaceutical compositions comprising compounds of formula 1, and the use of said compounds in treating proliferative disorders, viral disorders, CNS disorders, diabetes, stroke, alopecia or neurodegenerative disorders.
Type:
Grant
Filed:
September 28, 2005
Date of Patent:
June 9, 2009
Assignees:
Cyclacel Limited, Cancer Research Technology Limited
Inventors:
Peter Martin Fischer, Michael Jarman, Edward McDonald, Bernard Nutley, Florence Raynaud, Stuart Wilson, Paul Workman
Publication number: 20080318954
Abstract: The present invention relates to compounds of formula (I), or a pharmaceutically acceptable salts thereof, wherein: Z1: 1 is N or CH; Z2 and Z3 are each independently N or CR7; R1, R2, R3, R4, R5, R6, and R7 are each independently H, R8, or R9; each R8 is independently a hydrocarbyl group; and each R9 is independently halo, NO2, alkoxy, CN, CF3, S03H, SO2NR10R11, S02R12, NR13R14(CH2)aCOOR15, (CH2)bCONR16R17, (CH2)cCOR18 or (CH2)dOH; a, b, c and d are each independently 0, 1 2 3 or 4; R10-18 are each independently H or alkyl; provided that when R1 and R2 are both H, Z1 is CH; or Z2 is N; or Z1 is CH and Z2 is N; and wherein the compound is other than 4-(4,5-dimethylthiazol-2-yl)-N-(3,4,5trimethoxyphenyl)-2-pyrimidineamine or 4-(5-(2-hydroxyethyl)-4-methylthiazol-2-yl)N-(3,4,5-trimethoxyphenyl)-2-pyrimidineamine.
Type:
Application
Filed:
February 7, 2005
Publication date:
December 25, 2008
Applicant:
Cyclacel Limited
Inventors:
Kenneth Duncan, Darren Gibson, Shudong Wang, Daniella I. Zheleva, Peter Martin Fischer