@misc{indiciae87aabf4f7ba1,
  title = {[4-Morpholyl ester as an activated ester in peptide synthesis].},
  author = {K Okamoto and S Shimamura},
  year = {1973},
  doi = {10.1248/yakushi1947.93.3\_333},
  url = {https://pubmed.ncbi.nlm.nih.gov/4737593/},
  note = {Source identifier: 4737593}
}