HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → HPro-DPhe-Phe-Gly-Leu-MetNH2
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | BocPro-DPhe-Phe-Gly-Leu-MetNH2 | HCID 131713728 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | HPro-DPhe-Phe-Gly-Leu-MetNH2 | HCID 131713730 | — |
Reaction Steps
Condensation of BocPro-DPhe-PheNHNH2 (1.98 g.) and HGly-Leu-MetNH2 hydrochloride salt (Example 7, 1.3 g.) by the acyl azide method (Yajima et al., Chem. Pharm. Bull., vol. 19, p. 1900, 1971) gave BocPro-DPhe-Phe-Gly-Leu-MetNH2 in 82% yield. De-t-butoxycarbonylation of BocPro-DPhe-Phe-Gly-Leu-MetNH2 (1.8 g.) using hydrogen chloride in acetic acid gave HPro-DPhe-Phe-Gly-Leu-MetNH2, which was isolated as the amorphous white solid phosphate (1:1) salt monohydrate in 59% yield.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04472305 |
| Source dataset | uspto-grants-1984_09 |
| ORD ID | ord-2ee85f8cc8b043a8b3b4c2ed7dfcf225 |
| Source note | uspto-grants-1984_09 |