Tricyclic compounds according to the structure below, protected intermediates thereof, and methods for inhibition of HIV-integrase are disclosed. The apparatus also has a helical coil structure configured along the post structure. The composition is a may be used in soft tissue repair as well as hard bone replacement. The method of making the screwdriver is also disclosed. And it stands proxy for calling and connecting between each multi-media terminal and the other multi-media terminal according to this address information.