The present invention relates to compounds of the general formula (IV) and (II) and salts and physiologically functional derivatives thereof,
wherein
Xis C―R8 or N; and
Zis independently one of the following groups:
本发明涉及通式(IV)和(II)的化合物及其盐和生理功能衍
生物,其中 X 是 C-R8 或 N;Z 独立地是下列基团之一: