PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7341524-4 1981 The synthesis of [17O]-Gly-Ala, [17O]-Gly-Leu and [17O]-Gly-Glu by DCC/HBT mediated coupling of Boc-Gly-[17O]-alpha-COOH with amino acid-O-t-butyl esters followed by deprotection with HCl/EtOAc proceeded without undue loss of the isotope. ethyl acetate 188-193 DCC netrin 1 receptor Homo sapiens 67-70