In general, the inventive libraries are synthesized from {HEAD ~ diversifiable scaffold structures}, which are synthesized from {TAIL ~ readily available or easily synthesizable template structures} 
In general , the inventive libraries are synthesized from { HEAD ~ diversifiable scaffold structures } , which are synthesized from { TAIL ~ readily available or easily synthesizable template structures }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL