In {TAIL ~ preferred compounds} of Formula I, {HEAD ~ Y} is an dialkoxyphosphonate, or α hydroxyamide group and Z is an acyl or α ketocarbamate functionality 
In
In { TAIL ~ preferred compounds } of Formula I , { HEAD ~ Y } is an dialkoxyphosphonate , or α hydroxyamide group and Z is an acyl or α ketocarbamate functionality
REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH