A compound having Formula I or II (Formula I) or (Formula II), or a pharmaceutically acceptable salt thereof, wherein X, Z, R1, R2, R11 and R12 are as defined in the specification; pharmaceutical compositions thereof; and methods of use thereof.
具有
化学式I或II(
化学式I)或(
化学式II)的化合物或其药学上可接受的盐,其中X,Z,R1,R2,R11和R12如规范中定义;其制药组合物;以及其使用方法。