The present invention relates to an N-substituted benzothiophenesulfonamide derivative or a pharmaceutically acceptable salt thereof and applications thereof. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation. Moreover, the variable speed wind turbine includes a power control and a pitch regulation. The router is responsible for transferring vehicle state signals of those vehicles out of direct communications between them. When the control key is rotated from the first to a third position, the core can be operated by the individual key, thus inactivating the blocking function.