HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → HPro-Phe-Phe-Sar-Leu-MetNH2
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | HCID 131713708 | HCID 131713708 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | HPro-Phe-Phe-Sar-Leu-MetNH2 | HCID 131713707 | — |
Reaction Steps
Condensation of BocPro-Phe-PheNHNH2 (Example 1, 1.35 g.) and HSar-Leu-MetNH2 (0.95 g.) by the acyl azide method (Yajima et al., Chem. Pharm. Bull., vol. 19, p. 1900, 1971) gave BocPro-Phe-Phe-Sar-Leu-MetNH2 in 45% yield. De-t-butoxycarbonylation of BocPro-Phe-Phe-Sar-Leu-MetNH2 (0.90 g.) using hydrogen chloride in acetic acid gave HPro-Phe-Phe-Sar-Leu-MetNH2, which was isolated as the amorphous white solid phosphate (1:1) salt sesquihydrate in 59% yield.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04472305 |
| Source dataset | uspto-grants-1984_09 |
| ORD ID | ord-3f4ba1cd3e47443eb6dc3562d5dd6ff5 |
| Source note | uspto-grants-1984_09 |