Triethylamine → HCID 59520050, Verbindung
Reaktionsgleichung
[C:1]([O:5][C:6]([N:8]1[CH2:12][C@@H:11]([OH:13])[C@H:10]([CH2:14][NH:15][C:16]([C:18]2[S:19][C:20]([Cl:23])=[CH:21][CH:22]=2)=[O:17])[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].CCN(CC)CC>C(Cl)Cl>[C:1]([O:5][C:6]([N:8]1[CH2:12][C:11](=[O:13])[C@H:10]([CH2:14][NH:15][C:16]([C:18]2[S:19][C:20]([Cl:23])=[CH:21][CH:22]=2)=[O:17])[CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
81.1 To a solution of (3R,4S)-3-{[(5-chloro-thiophene-2-carbonyl)-amino]-methyl}-4-hydroxy-pyrrolidine-1-carboxylic acid tert-butyl ester (600 mg, prepared according to example 79.5) in 10 ml of CH2Cl2 was added at 5° C. 2.30 ml of NEt3 and 1.59 g of SO3-pyridine complex, the solution was warmed to 22° C. and stirring was continued for 3 h. The mixture was washed with aqueous NH4Cl, the organic layer was dried and evaporated. The residue was chromatographed on silica (heptane/AcOEt, 2:1) to give 435 mg of (R)-3-{[(5-chloro-thiophene-2-carbonyl)-amino]-methyl}-4-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester. Pale yellow solid. MS 303.0 ([M-isobutene+H]+)