Patent number: 7902361
Abstract: The present invention relates to compounds of formula I, or pharmaceutically acceptable salts thereof, wherein R1 and R5 are each independently H, C(ORj?) or a hydrocarbyl group optionally substituted by one or more R6 groups; R2, R3, and R4 are each independently H, alkyl or alkenyl, each of which may be optionally substituted with one or more R7 groups; R6 and R7 are each independently halogen, NO2, CN, (CH2)mORa, O(CH2)nORb, (CH2)pNRcRd, CF3, COORe, CONRfRg, CORh, SO3H, SO2Ri, SO2NRjRk, (CH2)qNRa?CORg?, Rf?, (CH2)rNRb?SO2Rh?, SO2NRd?Ri?, SO2NRe?(CH2)sORc?, heterocycloalkyl or heteroaryl, wherein said heterocycloalkyl and heteroaryl may be optionally substituted by one or more substituents selected from aralkyl, sulfonyl, Rm and CORn; Rg?, Rh?, Ri? and Rj? are each independently selected from alkyl, aryl, aralkyl and heteroaryl, each of which may be optionally substituted with one or more substituents selected from halogen, OH, NO2, NH2 CF3 and COOH; m, p, q and r are each independently 0, 1, 2 or 3; n
Type:
Grant
Filed:
April 21, 2006
Date of Patent:
March 8, 2011
Assignee:
Cyclacel Limited
Inventors:
Shudong Wang, Gavin Wood, Kenneth Duncan, Christopher Meades, Darren Gibson, Janice McLachlan, Alex Perry, David Blake, Daniella I. Zheleva, Peter Martin Fischer
Patent number: 7820648
Abstract: The present invention relates to a compound of the formula 1 or a pharmaceutically acceptable salt thereof, wherein Ar is a group of formula and R1, R2, R13, A, K, M, L1, L2, X, Y1, Y2, Q, salt thereof, wherein R1, R2, R13, A, K, L1, L2, W, X, Z1, Z2, Y1, Y2, Z1, Z2, M, Q, W, X, m, p and q are as defined herein. Such novel pyrimidine derivatives are useful in the treatment of abnormal cell growth, such as cancer, in mammals. The invention also relates to a method of using such compounds in the treatment of abnormal cell growth in mammals, especially humans, and to pharmaceutical compositions containing such compounds.
Type:
Grant
Filed:
December 20, 2006
Date of Patent:
October 26, 2010
Assignees:
Pfizer Inc, Pfizer Products Inc
Inventors:
Samit Kumar Bhattacharya, Michael Joseph Luzzio, Donn Gregory Wishka, Gonghua Pan, Arthur Douglas Brosius, Joel Thomas Arcari, James Alfred Southers, Jr., Kendra Louise Nelson, Jun Xiao