{HEAD ~ The compound} 1, wherein said {TAIL ~ compound} is the following compound, or a pharmaceutically acceptable salt thereof of the following compound: 
wherein
{ HEAD ~ The compound } 1 , wherein said { TAIL ~ compound } is the following compound , or a pharmaceutically acceptable salt thereof of the following compound :
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH