The compounds are synthesized by reacting a compound of the formula with an isocyanate of the formula under {HEAD ~ basic conditions} in a non reactive, {TAIL ~ polar organic solvent} 
The compounds are synthesized by reacting a compound of the formula with an isocyanate of the formula under { HEAD ~ basic conditions } in a non reactive , { TAIL ~ polar organic solvent }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL