| 摘要 |
A compound of formula (I) wherein X is O or S; R1 and R2 are independently selected from hydrogen, alkyl, aryl, hydroxy, alkoxy, aryloxy, cyano, nitro, CO2R7, COR7, OCOR7CONR7R8, CONR7NR8R9, OCONR7R8, NR7R8, NR7COR8, NR7CONR8R9, NR7CO2R8, NR7SO2R8, NR7CONR8NR9R10, NR7NR8CO2R9, NR7NR8CONR9R10, NR7SO2NR8R9, SO2R7, SOR7, SR7 and SO2NR7R8, or R1 and R2 together form a carbonyl group (C=O), an oxime group (C=NOR11), an imine group (C=NR11) or a hydrazone group (C=NNR11R12), or R1 and R2 together form a 5, 6 or 7 membered carbocyclic or heterocyclic ring; R3 is alkyl or aryl; R4, R5 and R6 are independently selected from hydrogen, alkyl, aryl, halogen, hydroxy, nitro, cyano, alkoxy, aryloxy, COR7, OCOR7, CO2R7, SR7, SOR7, SO2R7, SO2NR7R8, CONR7R8, CONR7NR8R9, OCONR7R8, NR7R8, NR7COR8, NR7CONR8R9, NR7CO2R8, NR7SO2R8, CR7=NOR8, NR7CONR8NR9R10, NR7NR8CO2R9, NR7NR8CONR9R10, SO2NR7NR8R9, NR7SO2NR8R9, NR7NR8SO2R9, NR7NR8COR9, NR7NR8R9 and NR7CSNR8R9, or R5 and R6 together form a 5, 6 or 7 membered carbocyclic or heterocyclic ring; and R7, R8, R9, R10, R11 and R12 are independently selected from hydrogen, alkyl and aryl, or a pharmaceutically acceptable salt thereof or prodrug thereof, and the use thereof in therapy, particularly in the therapy of a disorder in which the blocking of purine receptors may be beneficial, such as Parkinson's Disease.
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