Abstract: Pyrimidines of formula (I): wherein R1 to R4, X and Y are defined in the specification are inhibitors of P13K and may thus be used to treat diseases and disorders arising from abnormal cell growth, function or behavior associated with P13 kinase such as cancer, immune disorders, cardiovascular disease, viral infection, inflammation, metabolism/endocrine function disorders and neurological disorders.

Abstract: The invention provides compounds which are pyrimidines of formula (I): wherein —XR3 is bonded at ring position 2 and —YR4 is bonded at ring position 5 or 6; R1 and R2 form, together with the N atom to which they are attached, a morphorine ring which is unsubstituted or substituted; X is a direct bond; R3 is selected from (i) a group of the following formula (1): wherein B is a phenyl ring which is unsubstituted or substituted and Z is selected from —OR, CH2OR and —NRS(O) mR, wherein each R is independently selected from H, C1-C6 alkyl, C3-C10 cycloalkyl and a 5- to 12-membered aryl or heteroaryl group, the group being unsubstituted or substituted, and m is 2; and (ii) an indazole group which is unsubstituted or substituted; and Y is selected from —O—(CH2)n—, —NH—(CH2)n, —NHC(O)—(CH2)n— and —C(O)NH—(CH2)n— wherein n is 0 or an integer of 1 to 3, and R4 is selected from an unsaturated 5- to 12-membered carbocyclic or heterocyclic group which is unsubstituted or substituted and a group —NR5R6 wherein R5 and R6,

Abstract: Pyrimidines of formula (I): wherein R1 to R4, X and Y are defined in the specification are inhibitors of PI3K and may thus be used to treat diseases and disorders arising from abnormal cell growth, function or behavior associated with PI3 kinase such as cancer, immune disorders, cardiovascular disease, viral infection, inflammation, metabolism/endocrine function disorders and neurological disorders.