Hydrochloric Acid → (2S,4S)-allyl 2-(((allyloxycarbonyl)(sulfamoyl)amino)methyl)-4-mercaptopyrrolidine-1-carboxylate

HRID 1034531Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1034531
C([S:4][C@@H:5]1[CH2:9][N:8]([C:10]([O:12][CH2:13][CH:14]=[CH2:15])=[O:11])[C@H:7]([CH2:16][N:17]([S:24](=[O:27])(=[O:26])[NH2:25])[C:18]([O:20][CH2:21][CH:22]=[CH2:23])=[O:19])[CH2:6]1)(=O)C.C[O-].[Na+].CO.Cl>C1(C)C=CC=CC=1.O>[CH2:13]([O:12][C:10]([N:8]1[CH2:9][C@@H:5]([SH:4])[CH2:6][C@H:7]1[CH2:16][N:17]([S:24](=[O:26])(=[O:27])[NH2:25])[C:18]([O:20][CH2:21][CH:22]=[CH2:23])=[O:19])=[O:11])[CH:14]=[CH2:15]

Komponenten

7

Edukt 4

HCID 313Hydrochloric AcidHCID 887MethanolHCID 10942334Sodium MethoxideHCID 57143963(2S,4S)-4-acetylthio-1-allyloxycarbonyl-2-(N-sulfamoyl-N-allyloxycarbonylamino)methylpyrrolidine

Produkt 1

HCID 57114535(2S,4S)-allyl 2-(((allyloxycarbonyl)(sulfamoyl)amino)methyl)-4-mercaptopyrrolidine-1-carboxylateAusbeute 78,6 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 1140TolueneLösungsmittel2×

Versuchsvorschrift

To a solution of (2S,4S)-4-acetylthio-1-allyloxycarbonyl-2-(N-sulfamoyl-N-allyloxycarbonylamino)methylpyrrolidine (6.70 g: 16.4 mmole) in toluene (50 ml), 4.92M solution of sodium methoxide in methanol (5.0 ml: 24.7 mmole) is added at -30° C. The mixture is stirred for 30 minutes, and diluted with water (55 ml). The aqueous layer is taken, diluted with toluene (50 ml), acidified with concentrated hydrochloric acid (2.3 ml) under ice cooling, and stirred. The organic layer is taken, successively washed with water and saturated brine, dried over magnesium sulfate and concentrated in vacuo. The residual oil is purified by silica gel chromatography (toluene-ethyl acetate) to give (2S,4S)-1-allyloxycarbonyl-2-(N-sulfamoyl-N-allyloxycarbonylamino)methyl-4-mercaptopyrrolidine (4.89 g). Yield: 78%. Colorless oil. NMR δ(CDCl3) ppm: 1.5 to 1.7(m, 1H), 2.35(s, 3H), 2.5 to 2.7(m, 1H), 3.19(dd, J=6.3 Hz, J=11.5 Hz, 1H), 3.68(dd, J=3.8 Hz, J=14.5 Hz, 1H), 3.9 to 4.3(m, 3H), 4.3 to 4.7(m, 5H), 5.2 to 5.4(m, 4H), 5.8 to 6.1(m, 4H). IR ν (CHCl3) cm-1 : 1718, 1684, 1179, 1160.

Aufarbeitung

  1. stirringstirred
  2. washsuccessively washed with water and saturated brine
  3. dry with materialdried over magnesium sulfate
  4. concentrationconcentrated in vacuo
  5. customThe residual oil is purified by silica gel chromatography (toluene-ethyl acetate)

Quellen und Nachweise

ORD-Eintrag
ord-b5da3e9b07a6484d9a33b326840d4615
Quelldatensatz
uspto-grants-1994_05
Patentnummer
US05317016

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