The present invention relates to compounds of formula (I), or pharmaceutically acceptable salts, prodrugs, salts of prodrugs, or combinations thereof,
wherein R1, R2, R3, R4, and L2, are defined in the specification, compositions comprising such compounds, and methods of treating conditions and disorders using such compounds and compositions.
本发明涉及公式(I)的化合物,或其药学上可接受的盐、前药、前药盐或其组合物,其中R1、R2、R3、R4和
L2在说明书中有定义,包括含有这些化合物的组合物,以及使用这些化合物和组合物治疗疾病和疾病的方法。