Reaktionsgleichung
[N+](=[CH:3][C:4]([C@@H:6]1[CH2:10][CH2:9][CH2:8][N:7]1[C:11]([C@@H:13]1[CH2:17][CH2:16][CH2:15][N:14]1[C:18]([NH:20][CH2:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)=[O:19])=[O:12])=[O:5])=[N-].[C:28]([OH:31])(=[O:30])[CH3:29].O1CCOCC1>>[C:28]([O:31][CH2:3][C:4]([C@@H:6]1[CH2:10][CH2:9][CH2:8][N:7]1[C:11]([C@@H:13]1[CH2:17][CH2:16][CH2:15][N:14]1[C:18]([NH:20][CH2:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)=[O:19])=[O:12])=[O:5])(=[O:30])[CH3:29]Komponenten
3
Reaktionsbedingungen
- Temperatur
- 100 °C
Versuchsvorschrift
(S)-2-[[(S)-2-(Diazoacetyl)-1-pyrrolidinyl]carbonyl]-N-(phenylmethyl)-1-pyrrolidinecarboxamide (3.63 g) was dissolved in acetic acid-1,4-dioxane (1:1, 36 ml), and the mixture was heated at 100° C. for 10 minutes. The reaction mixture was concentrated, added with methylene chloride, washed with a saturated aqueous solution of sodium bicarbonate and water in order, dried over anhydrous sodium sulfate, and concentrated. The residue was purified by silica gel column chromatography (eluent: chloroform-methanol) to give the title compound (1.47 g) (see Table 1).
Aufarbeitung
- concentrationThe reaction mixture was concentrated
- additionadded with methylene chloride
- washwashed with a saturated aqueous solution of sodium bicarbonate and water in order
- dry with materialdried over anhydrous sodium sulfate
- concentrationconcentrated
- customThe residue was purified by silica gel column chromatography (eluent: chloroform-methanol)
Quellen und Nachweise
- ORD-Eintrag
- ord-22e1f570dc3c4e3b92ba19b42c1e9362
- Quelldatensatz
- uspto-grants-1996_07
- Patentnummer
- US05536737
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