Abstract: Provided are chemical entities selected from compounds of formula (I), wherein R1, R2 and m have meanings given in the description, and pharmaceutically acceptable salts, solvates and stereoisomers thereof, which are inhibitors of ATR and are potentially useful in the treatment of cancer. Further provided are pharmaceutical compositions of the chemical entities, combination products containing the chemical entities, the use of the compositions as therapeutic agents, and methods of treatment using these compositions.

Abstract: Provided are chemical entities selected from compounds of formula (I), wherein R1, R2 and m have meanings given in the description, and pharmaceutically acceptable salts, solvates and stereoisomers thereof, which are inhibitors of ATR and are potentially useful in the treatment of cancer. Further provided are pharmaceutical compositions of the chemical entities, combination products containing the chemical entities, the use of the compositions as therapeutic agents, and methods of treatment using these compositions.

Abstract: There is provided compounds of formula (I), wherein A1, A2, A3, A4, n, the dotted lines, B1, B1a, B2, B2a, B3, B3a, B4, B4a, R2 and R3 have meanings given in the description, and pharmaceutically-acceptable esters, amides, solvates or salts thereof, which compounds are useful in the treatment of diseases in which inhibition of a protein kinase (e.g. a PI3-K and/or mTOR) is desired and/or required, and particularly in the treatment of cancer or a proliferative disease.

Abstract: A method of synthesising a compound of formula (I): wherein RN1 and RN2 are independently selected from hydrogen, an optionally substituted C1-7 alkyl group, C3-20 heterocyclyl group, or C5-20 aryl group, or may together form, along with the nitrogen atom to which they are attached, an optionally substituted heterocyclic ring having from 4 to 8 ring atoms; from a compound of formula (III): comprising the steps of: (a) removing the allyl group from the compound of formula (III) with appropriate reaction conditions to yield a compound of formula (II): and (b) reacting the compound of formula (II) with a triflating agent to yield a compound of formula (I).