| abstract |
The invention provides a combination of an ancillary agent and a compound having the formula (0): or salts or tautomers or N-oxides or solvates thereof; wherein the ancillary agent is selected from: a monoclonal antibody, an alkylating agent, an anticancer agent, a further CDK inhibitor and a hormone, hormone agonist, hormone antagonist or hormone modulating agent; X is a group R 1 -A-NR 4 — or a 5- or 6-membered carbocyclic or heterocyclic ring; A is a bond, SO 2 , C═O, NR 9 (C═O) or 0(C═O) wherein R 9 is hydrogen or Ĉhydrocarbyl optionally substituted by hydroxy or C 1-4 alkoxy; Y is a bond or an alkylene chain of 1, 2 or 3 carbon atoms in length; R 1 is hydrogen; a carbocyclic or heterocyclic group having from 3 to 12 ring members; or a C 1-8 hydrocarbyl group optionally substituted by one or more substituents selected from halogen (e.g. fluorine), hydroxy, Ĉhydrocarbyloxy, amino, mono- or di-C 1-4 hydrocarbylamino, and carbocyclic or heterocyclic groups having from 3 to 12 ring members, and wherein 1 or 2 of the carbon atoms of the hydrocarbyl group may optionally be replaced by an atom or group selected from O, S, NH, SO, SO 2 ; R 2 is hydrogen; halogen; Ĉalkoxy (e.g. methoxy); or a C 1-4 hydrocarbyl group optionally substituted by halogen (e.g. fluorine), hydroxyl or C 1-4 alkoxy (e.g. methoxy); R 3 is selected from hydrogen and carbocyclic and heterocyclic groups having from 3 to 12 ring members; and R 4 is hydrogen or a Ĉhydrocarbyl group optionally substituted by halogen (e.g. fluorine), hydroxyl or C 1-4 alkoxy (e.g. methoxy). |