HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Diisopropylethylamine → (2S,3R)-benzyl 2-((S)-2-((tert-butoxycarbonyl)amino)-3-hydroxypropanamido)-3-hydroxy-3-(4-methoxyphenyl)propanoate
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Diisopropylethylamine | HCID 81531 | — |
| Edukt | N-[tert-butoxycarbonyl]-L-serine | HCID 98766 | — |
| Edukt | Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1) | HCID 9886157 | — |
| Edukt | (2S,3R)-benzyl 2-amino-3-hydroxy-3-(4-methoxyphenyl)propanoate | HCID 117607803 | — |
| Lösungsmittel | Dimethylformamide | HCID 6228 | — |
| Produkt | (2S,3R)-benzyl 2-((S)-2-((tert-butoxycarbonyl)amino)-3-hydroxypropanamido)-3-hydroxy-3-(4-methoxyphenyl)propanoate | HCID 131737019 | 93,8% |
Reaktionsschritte
Sequentially HATU (645 mg, 1.70 mmol) and DIEA (0.99 mL, 5.7 mmol) were added to a 0° C. solution of (2S,3R)-benzyl 2-amino-3-hydroxy-3-(4-methoxyphenyl)propanoate (HCl salt, 477 mg, 1.41 mmol) and Boc-Ser-OH (290 mg, 1.41 mmol) in DMF (8 mL). The reaction mixture was allowed to warm to ambient temperature and stirred for 30 min. The mixture was concentrated and the residue was purified by flash column chromatography on silica gel (petroleum ether/EtOAc=2:1) twice to afford (2S,3R)-benzyl 2-((S)-2-((tert-butoxycarbonyl)amino)-3-hydroxypropanamido)-3-hydroxy-3-(4-methoxyphenyl)propanoate (646 mg, 93% yield) as a colorless solid.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US09434761B2 |
| Quelldatensatz | uspto-grants-2016_09 |
| ORD ID | ord-514e7be395af4c72920394a73b5673db |
| Quellennotiz | uspto-grants-2016_09 |