The monomers of {HEAD ~ the invention} are prepared in {TAIL ~ good yield} from readily available starting materials 
The monomers of { HEAD ~ the invention } are prepared in { TAIL ~ good yield } from readily available starting materials
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH