Compounds containing any combination of substituents or {HEAD ~ members} of {TAIL ~ the Markush groups} specified above are within the scope of the invention 
Compounds containing any combination of substituents or { HEAD ~ members } of { TAIL ~ the Markush groups } specified above are within the scope of the invention
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH