{HEAD ~ Any suitable ring position} of {TAIL ~ the aryl moiety} may be covalently linked to the defined chemical structure 
of
{ HEAD ~ Any suitable ring position } of { TAIL ~ the aryl moiety } may be covalently linked to the defined chemical structure
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH