HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → (R)-Benzyl 2-(pyrrolidine-1-carbonyl)pyrrolidine-1-carboxylate
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | 1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide | HCID 15908 | — |
| Edukt | Pyrrolidine | HCID 31268 | — |
| Edukt | 1-Hydroxybenzotriazole | HCID 75771 | — |
| Edukt | 1-benzyl hydrogen (R)-pyrrolidine-1,2-dicarboxylate | HCID 111208 | — |
| Lösungsmittel | Water | HCID 962 | — |
| Lösungsmittel | Dimethylformamide | HCID 6228 | — |
| Lösungsmittel | Sodium Bicarbonate | HCID 516892 | — |
| Produkt | (R)-Benzyl 2-(pyrrolidine-1-carbonyl)pyrrolidine-1-carboxylate | HCID 667614 | — |
Reaktionsschritte
A mixture of (+)-carbobenzyloxy-D-proline (1.5 g, 6 mmol), EDAC (2.3 g, 12 mmol), HOBt (800 mg, 6 mmol), TEA (1.5 mL) and pyrrolidine (853 mg, 12 mmol) in DMF (20 mL) was stirred at rt for 18 hours. The reaction was diluted with water and sodium bicarbonate, extracted with DCM (3×). The combined DCM was concentrated and purified on a silica gel column to give (R)-2-(pyrrolidine-1-carbonyl)-pyrrolidine-1-carboxylic acid benzyl ester.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US06599902B2 |
| Quelldatensatz | uspto-grants-2003_07 |
| ORD ID | ord-5f9f8fbc16794791adcba827f64da92a |
| Quellennotiz | uspto-grants-2003_07 |