| 摘要 |
The present invention provides a compound of formula (IA) or a pharmaceutically acceptable salt thereof: wherein: R1 represents C1-4 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-6 cycloalkyl, C3-6 cycloalkylmethyl-, phenyl-X- or heteroaryl, any of which may be optionally substituted; X represents -(CR12R13)n-; n represents 0 to 2; and R7, R8, R9, R10 and R11 independently represent H, halogen, or cyano; or optionally substituted C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl or C3-6 cycloalkyl; such that at least two of R7, R8, R9, R10 and R11 represent a group other than H and at least one of R7 and R11 represents a group other than H; and wherein the compound is other than N-[(2,4-dichlorophenyl)methyl]-5-oxo-1-(phenylmethyl)-3-pyrrolidinecarboxamide. The compounds and salts are thought to modulate P2X7 receptor function and be capable of antagonizing the effects of ATP at the P2X7 receptor. |
