The invention relates to prodrug compounds of formula I:
wherein R2, R3, R5, R7 and X are as defined herein. The invention also provides pharmaceutically acceptable compositions comprising the compounds of the invention and methods of using the compositions in the treatment of various disorders, including pain. The compounds of formula I possess advantageous solubility and physicochemical properties.
本发明涉及I式的前药化合物:其中R2,R3,R5,R7和X如定义所述。本发明还提供了包括本发明化合物的药学上可接受的组合物以及使用该组合物治疗各种疾病,包括疼痛的方法。I式化合物具有优越的溶解度和物理
化学性质。