{HEAD ~ These methods} include converting the acid to an activated acid and reacting with one or more molar equivalents of {TAIL ~ the desired amine} 
{ HEAD ~ These methods } include converting the acid to an activated acid and reacting with one or more molar equivalents of { TAIL ~ the desired amine }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL