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

반응식

HRID 29198 반응식
[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

참가 물질

6

반응물 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

생성물 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-hydroxypropylcarbamate수율 39%

시약·촉매·용매 2

HCID 8028Tetrahydrofuran용매HCID 8857Ethyl Acetate용매

실험 절차

(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.

후처리

  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

출처 및 근거

ORD 기록
ord-feb4dfa789cb4d71bb2810c500b19571
출처 데이터셋
uspto-grants-2008_09
특허 번호
US07419967B2

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