The invention provides the compounds of formula (I)
and pharmaceutically acceptable derivatives thereof, in which:
R1 and R2 are independently selected from H, or C1-6alkyl;
R3 is C1-6alkyl or NH2;
R4 is H or C1-6alkyl;
A is a 5- or 6-membered aryl, or a 5- or 6-membered aryl substituted by one or more R5;
R5 is halogen, C1-6alkyl, C1-6alkyl substituted by one ore more F, C1-6alkoxy, C1-6alkoxy substituted by one or more F, SO2NH2 or SO2C1-6alkyl; and
n is 1 to 4.
本发明提供了公式(I)的化合物及其药学上可接受的衍
生物,其中:R1和R2分别选自H或C1-6烷基;R3是C1-6烷基或NH2;R4是H或C1-6烷基;A是5-或6-成员芳基,或5-或6-成员芳基取代一个或多个R5;R5是卤素,C1-6烷基,C1-6烷基取代一个或多个F,C1-6烷氧基,C1-6烷氧基取代一个或多个F,SO2NH2或SO2C1-6烷基;n为1至4。