HCID 59352489, compound → HCID 59352364, compound

HRID 1407931Notes

Reaction equation

HRID 1407931 reaction equation
CC1(C)[O:38][C@H:5]2[O:6][C@H:7]([CH2:15][N:16]3[C:24]4[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=4)[C:18]4([C:36]5[C:27](=[CH:28][C:29]6[O:34][CH2:33][CH2:32][O:31][C:30]=6[CH:35]=5)[O:26][CH2:25]4)[C:17]3=[O:37])[C@@H:8]3[O:12]C(C)(C)[O:10][C@@H:9]3[C@H:4]2[O:3]1>FC(F)(F)C(O)=O>[O:37]=[C:17]1[C:18]2([C:36]3[C:27](=[CH:28][C:29]4[O:34][CH2:33][CH2:32][O:31][C:30]=4[CH:35]=3)[O:26][CH2:25]2)[C:19]2[C:24](=[CH:23][CH:22]=[CH:21][CH:20]=2)[N:16]1[CH2:15][C@H:7]1[O:6][CH:5]([OH:38])[C@H:4]([OH:3])[C@@H:9]([OH:10])[C@H:8]1[OH:12]

Participants

3

Reactant 1

HCID 59352489HCID 59352489, compound

Product 1

HCID 59352364HCID 59352364, compoundYield 7%

Reagents, catalysts & solvents 1

HCID 6422Trifluoroacetic acidSolvent

Procedure

1′-{[(3aR,5R,5aS,8aS,8bR)-2,2,7,7-tetramethyltetrahydro-3aH-bis[1,3]dioxolo[4,5-b:4′,5′-d]pyran-5-yl]methyl}-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3′-indol]-2′(1′H)-one (0.45 g, 0.83 mmol) was suspended in 80% v/v aqueous trifluoroacetic acid (40 mL) and the reaction mixture was stirred at ambient temperature for 3 h. The reaction mixture was concentrated in vacuo and the residue recrystallized from ethanol to afford 6-deoxy-6-(2′-oxo-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3′-indol]-1′(2′H)-yl)-D-galactopyranose (0.025 g, 7%) as an off white solid: mp 122-126° C. (ethanol); 13C NMR (75 MHz, CDCl3) δ178.5, 155.2, 155.2, 155.1, 155.0, 144.5, 142.6, 142.2, 142.1, 138.0, 138.0, 132.3, 132.0, 129.0, 123.5, 123.4, 121.0, 120.9, 111.6, 111.4, 109.9, 109.7, 99.2, 92.7, 79.9, 64.4, 63.8, 60.4, 58.0, 21.0, 14.2; MS (ES+) m/z 480.0 (M+23).

Workup

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. customthe residue recrystallized from ethanol

Sources & evidence

ORD record
ord-db436609c57545a783c0576b333d2b6b
Source dataset
uspto-grants-2014_12
Patent number
US08916580B2

Reaction notes

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