This transformation can be accomplished using {HEAD ~ standard methods} to effect {TAIL ~ carboxylic acid} to carboxylic acid amide transformations 
to effect
This transformation can be accomplished using { HEAD ~ standard methods } to effect { TAIL ~ carboxylic acid } to carboxylic acid amide transformations
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH