Diisopropylethylamine → (3R,3aS,6aR)hexahydrofuro[2,3-b]furan-3-yl 3-[(1,3-benzodioxol-5-ylsulfonyl)(tetrahydro-2H-pyran-4-yloxy)amino]-1-benzyl-2-hydroxypropylcarbamate

HRID 29198

Reaktionsgleichung

Reaktionsgleichung von HRID 29198
[CH2:1]([C@H:8]([NH:20][C:21](=[O:31])[O:22][C@@H:23]1[C@H:30]2[C@H:26]([O:27][CH2:28][CH2:29]2)[O:25][CH2:24]1)[C@H:9]([OH:19])[CH2:10][NH:11][O:12][CH:13]1[CH2:18][CH2:17][O:16][CH2:15][CH2:14]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[O:32]1[C:36]2[CH:37]=[CH:38][C:39]([S:41](Cl)(=[O:43])=[O:42])=[CH:40][C:35]=2[O:34][CH2:33]1.C(N(C(C)C)CC)(C)C>C1COCC1.C(OCC)(=O)C>[O:32]1[C:36]2[CH:37]=[CH:38][C:39]([S:41]([N:11]([O:12][CH:13]3[CH2:18][CH2:17][O:16][CH2:15][CH2:14]3)[CH2:10][CH:9]([OH:19])[CH:8]([NH:20][C:21](=[O:31])[O:22][C@@H:23]3[C@H:30]4[C@H:26]([O:27][CH2:28][CH2:29]4)[O:25][CH2:24]3)[CH2:1][C:2]3[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=3)(=[O:42])=[O:43])=[CH:40][C:35]=2[O:34][CH2:33]1

Komponenten

6

Edukt 3

HCID 81531DiisopropylethylamineHCID 49134011,3-Benzodioxole-5-sulfonyl chlorideHCID 58683433(3R, 3aS, 6aR)hexahydrofuro[2,3-b]furan-3-yl(1S,2R)-1-benzyl-2-hydroxy-3-[(tetrahydro-2H-pyran-4-yloxy)amino]propylcarbamate

Produkt 1

HCID 21356268(3R,3aS,6aR)hexahydrofuro[2,3-b]furan-3-yl 3-[(1,3-benzodioxol-5-ylsulfonyl)(tetrahydro-2H-pyran-4-yloxy)amino]-1-benzyl-2-hydroxypropylcarbamateAusbeute 39 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8028TetrahydrofuranLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

(3R,3aS,6aR)hexahydrofuro[2,3-b]furan-3-yl (1S,2R)-1-benzyl-2-hydroxy-3-[(tetrahydro-2H-pyran-4-yloxy)amino]propylcarbamate (0.23 mmol, 100 mg) was combined 1,3-benzodioxole-5-sulfonyl chloride (0.28 mmol, 61 mg), diisopropylethylamine (0.69 mmol, 0.12 mL) in anhydrous THF (2 mL) and allowed to stir 72 hours at room temperature under nitrogen. The reaction was diluted with ethyl acetate and washed with 1N HCl, saturated sodium bicarbonate solution, brine and was dried over magnesium sulfate. The solution was concentrated under vacuum and the crude product was purified by silica gel chromatography (1:5 hexanes/ethyl acetate). The purified oil was crystallized to provide 55 mg (39%) of white crystals. Rf=0.2 (1:5 hexanes/ethyl acetate); H1-NMR (CDCl3): δ 7.38-7.13 (9H,m), 6.90 (1H,d), 6.10 (2H,s), 5.64 (1H,s), 5.02 (1H,m), 4.82 (1H,m), 4.41 (1H,m), 3.99-3.79 (6H,m), 3.72-3.59 (2H,m), 3.49-3.33 (2H,m), 3.25-2.51 (6H,m), 2.09-1.98 (2H,m), 1.69-1.43 (2H,m). MS (ESI): M+H=621.

Aufarbeitung

  1. washwashed with 1N HCl, saturated sodium bicarbonate solution, brine
  2. dry with materialwas dried over magnesium sulfate
  3. concentrationThe solution was concentrated under vacuum
  4. customthe crude product was purified by silica gel chromatography (1:5 hexanes/ethyl acetate)
  5. customThe purified oil was crystallized

Quellen und Nachweise

ORD-Eintrag
ord-feb4dfa789cb4d71bb2810c500b19571
Quelldatensatz
uspto-grants-2008_09
Patentnummer
US07419967B2

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