Details for Patent: 7,750,006

Title:	Phthalazinone derivatives
Abstract:	A method of treatment of a disease of the human or animal body mediated by PARP comprising administering to such a subject a therapeutically effective amount of a compound of formula: ##STR00001## or an isomer, salt, solvate, chemically protected form, and prodrug thereof, wherein: A and B together represent an optionally substituted, fused aromatic ring; R.sub.C is represented by -L-R.sub.L, where L is of formula: --(CH.sub.2).sub.n1-Q.sub.n2-(CH.sub.2).sub.n3-- wherein n.sub.1, n.sub.2 and n.sub.3 are each selected from 0, 1, 2 and 3, the sum of n.sub.1, n.sub.2 and n.sub.3 is 1, 2 or 3 and Q is selected from O, S, NH, C(.dbd.O) or --CR.sub.1R.sub.2--, where R.sub.1 and R.sub.2 are independently selected from hydrogen, halogen or optionally substituted C.sub.1-7 alkyl, or may together with the carbon atom to which they are attached form a C.sub.3-7 cyclic alkyl group, which may be saturated (a C.sub.3-7 cycloalkyl group) or unsaturated (a C.sub.3-7 cycloalkenyl group), or one of R.sub.1 and R.sub.2 may be attached to an atom in R.sub.L to form an unsaturated C.sub.3-7 cycloalkenyl group which comprises the carbon atoms to which R.sub.1 and R.sub.2 are attached in Q, --(CH.sub.2).sub.n3-- (if present) and part of R.sub.L; and R.sub.L is optionally substituted C.sub.5-20 aryl; and R.sub.N is selected from hydrogen, optionally substituted C.sub.1-7 alkyl, C.sub.3-20 heterocyclyl, and C.sub.5-20 aryl, hydroxy, ether, nitro, amino, amido, thiol, thioether, sulfoxide and sulfone.
Inventor(s):	Martin; Niall Morrison Barr (Cambridge, GB), Smith; Graeme Cameron Murray (Cambridge, GB), White; Charles Richard (Carlisle, GB), Newton; Roger Frank (Cornwall, GB), Douglas; Diane Gillian (Cornwall, GB), Eversley; Penny Jane (Cornwall, GB), Vile; Julia (Cornwall, GB)
Assignee:	Kudos Pharmaceuticals Limited (Cambridge, GB) Maybridge PLC (Cornwall, GB)
Filing Date:	Feb 10, 2006
Application Number:	11/352,178
Claims:	1. A method of potentiating tumor cells for treatment with ionizing radiation or chemotherapeutic agents comprising administering to said cells a compound of formula: ##STR00029## or an isomer, salt, chemically protected form, or prodrug thereof, wherein: A and B together represent optionally substituted, fused benzene; R.sub.C is --CH.sub.2--R.sub.L; R.sub.L is optionally substituted phenyl; and R.sub.N is hydrogen. 2. A method of potentiating tumour cells for treatment with ionizing radiation or chemotherapeutic agents comprising administering to said cells a compound of formula: ##STR00030## or an isomer, salt, chemically protected form, or prodrug thereof.