| abstract |
Compounds of formula (I) and salts and solvates are provided: In a first aspect therefore, the invention provides a compound of formula (I) or a salt or solvate thereof: wherein R5 is selected from halogen, C1-6alkyl, C1-6alkyl substituted with one or more fluorine atoms, C1-6 alkoxy, C1-6 alkoxy substituted with one or more fluorine atoms, and cyano; R6 is selected from halogen, C1-6alkyl, C1-6alkyl substituted with one or more fluorine atoms, C3-6cycloalkyl, C3-6cycloalkyl substituted with one or more fluorine atoms, C1-6 alkoxy, C1-6 alkoxy substituted with one or more fluorine atoms, and cyano; and Q is hydrogen or C 1-6 alkyl. The compounds are M1 agonists and are useful for therapy, for example in the treatment of psychotic disorders and cognitive impairment. |