ISOQUINOLINONE DERIVATIVES AS PARP INHIBITORS

摘要

The use of a compound of the formula (I) and isomers, salts, solvates, chemically protected forms, and prodrugs thereof, in the preparation of a medicament for inhibiting the activity of PARP, wherein A and B together represent an optionally substituted, fused aromatic ring, the dotted line between the 3 and 4 positions indicates the optional presence of a double bond, at least one of RC1 and RC2 is independently represented by -L-RL, and if one of RC1 and RC2 is not represented by -L-RL, then that group is H, where L is of formula: -(CH2)n1-Qn2-(CH2)n3-wherein n1, n2 and n3 are each selected from 0, 1, 2 and 3, the sum of n1, n2 and n3 is 1, 2 or 3 and each Q (if n2 is greater than 1) is selected from O, S, NR3, C(=O), or -CR1R2-, where R1 and R2 are independently selected from hydrogen, halogen or optionally substituted C1-7 alkyl, or may together with the carbon atom to which they are attached form a C3-7 cyclic alkyl group, which may be saturated (a C3-7 cycloalkyl group) or unsaturated (a C3-7 cycloalkenyl group), or one of R1 and R2 may be attached to an atom in RL to form an unsaturated C3-7 cycloalkenyl group which comprises the carbon atoms to which R1 and R2 are attached in Q, -(CH2)n3- (if present) and part of RL, and where R3 is selected from H or C1-7 alkyl, and RL is selected from optionally substituted C3-20 heterocyclyl, C5-20 aryl and carbonyl, and RN is selected from hydrogen, optionally substituted C1-7 alkyl, C3-20 heterocyclyl, C5-20 aryl, hydroxy, ether, nitro, amino, thioether, sulfoxide and sulfone.