Triethylamine → (2S,4S)-2-[(2S)-2-(hydroxymethyl)-pyrrolidin-1-yl]methyl-1-(4-nitrobenzyloxycarbonyl)-4-(triphenylmethylthio)pyrrolidine

HRID 1650844Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1650844
CS(O[CH2:6][C@@H:7]1[CH2:11][C@H:10]([S:12][C:13]([C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[CH2:9][N:8]1[C:32]([O:34][CH2:35][C:36]1[CH:41]=[CH:40][C:39]([N+:42]([O-:44])=[O:43])=[CH:38][CH:37]=1)=[O:33])(=O)=O.[OH:45][CH2:46][C@@H:47]1[CH2:51][CH2:50][CH2:49][NH:48]1.C(N(CC)CC)C>CN(C)C=O>[OH:45][CH2:46][C@@H:47]1[CH2:51][CH2:50][CH2:49][N:48]1[CH2:6][C@@H:7]1[CH2:11][C@H:10]([S:12][C:13]([C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[C:14]2[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=2)[CH2:9][N:8]1[C:32]([O:34][CH2:35][C:36]1[CH:37]=[CH:38][C:39]([N+:42]([O-:44])=[O:43])=[CH:40][CH:41]=1)=[O:33]

Komponenten

5

Edukt 3

HCID 8471TriethylamineHCID 640091L-ProlinolHCID 15056119(2S,4S)-2-mesyloxymethyl-N-(p-nitrobenzyloxycarbonyl)-4-tritylthiopyrrolidine

Produkt 1

HCID 15056147(2S,4S)-2-[(2S)-2-(hydroxymethyl)-pyrrolidin-1-yl]methyl-1-(4-nitrobenzyloxycarbonyl)-4-(triphenylmethylthio)pyrrolidineAusbeute 65,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

To a solution of (2S,4S)-2-(methanesulfonyloxy)methyl-1-(4-nitrobenzyloxycarbonyl)-4-(triphenylmethylthio)pyrrolidine (8.76 g) in dimethylformamide (80 ml) were added (2S)-2-(hydroxymethyl)pyrrolidine (8.72 g) and triethylamine (3.86 ml) and the mixture was stirred at 100° C. for 5 hours. The reaction mixture was poured into ice-water (300 ml) and extracted twice with ethyl acetate (200 ml). The extract was washed with saturated aqueous sodium chloride, dried over magnesium sulfate and evaporated in vacuo. The resulting residue was chromatographed on silica gel (150 g) eluting with a mixture of dichloromethane and acetone (2:1, V/V). The fractions containing the desired compound were collected and evaporated in vacuo to give (2S,4S)-2-[(2S)-2-(hydroxymethyl)pyrrolidin-1-yl]methyl-1-(4-nitrobenzyloxycarbonyl)-4-(triphenylmethylthio)pyrrolidine (5.75 g).

Aufarbeitung

  1. extractionextracted twice with ethyl acetate (200 ml)
  2. washThe extract was washed with saturated aqueous sodium chloride
  3. dry with materialdried over magnesium sulfate
  4. customevaporated in vacuo
  5. customThe resulting residue was chromatographed on silica gel (150 g)
  6. washeluting with a mixture of dichloromethane and acetone (2:1, V/V)
  7. additionThe fractions containing the desired compound
  8. customwere collected
  9. customevaporated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-96d14aa5e5c64422b1e1b125a9413eaa
Quelldatensatz
uspto-grants-1990_05
Patentnummer
US04925838

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