Water → HCID 68745073, compound

HRID 2354303Notes

Reaction equation

HRID 2354303 reaction equation
[CH2:1]([O:8][C@@H:9]1[C@@H:14]([O:15][CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[C@H:13]([O:23][CH2:24][C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=2)[C@@H:12]([CH2:31][O:32][CH2:33][C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=2)[O:11][C@H:10]1[C:40]1[C:48]2[C:43](=[C:44]([Cl:49])[CH:45]=[CH:46][CH:47]=2)[N:42]([CH2:50][C:51]2[CH:56]=[CH:55][C:54]([CH2:57][CH2:58][OH:59])=[CH:53][CH:52]=2)[CH:41]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[H-].[Na+].[CH3:62]I.O>CN(C)C=O.O1CCCC1>[CH2:1]([O:8][C@@H:9]1[C@@H:14]([O:15][CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[C@H:13]([O:23][CH2:24][C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=2)[C@@H:12]([CH2:31][O:32][CH2:33][C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=2)[O:11][C@H:10]1[C:40]1[C:48]2[C:43](=[C:44]([Cl:49])[CH:45]=[CH:46][CH:47]=2)[N:42]([CH2:50][C:51]2[CH:56]=[CH:55][C:54]([CH2:57][CH2:58][O:59][CH3:62])=[CH:53][CH:52]=2)[CH:41]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

7

Reactant 4

HCID 962WaterHCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 57616185HCID 57616185, compound

Product 1

HCID 68745073HCID 68745073, compound

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 3-(2,3,4,6-tetra-O-benzyl-β-D-glucopyranosyl)-7-chloro-1-[4-(2-hydroxyethyl)benzyl]-1H-indole (0.13 g) in N,N-dimethylformamide (3 mL) was added 55% sodium hydride (9 mg) under ice-cooling, and the mixture was stirred at the same temperature for 15 minutes. To this mixture was added a solution of methyl iodide (0.020 mL) in tetra hydrofuran (1 mL) at the same temperature, and the mixture was stirred at the same temperature for 15 minutes, and stirred at room temperature for 1 hour. The reaction mixture was poured into water, and the resulting mixture was extracted with ethyl acetate. The extract was washed with water and brine successively, and dried over anhydrous sodium sulfate. The solvent was removed under reduced pressure, and the residue was purified by column chromatography on silica gel (eluent: n-hexane/ethyl acetate=4/1) to give 3-(2,3,4,6-tetra-O-benzyl-β-D-glucopyranosyl)-7-chloro-1-[4-(2-methoxy-ethyl)benzyl]-1H-indole (0.13 g). This material was dissolved in a mixed solvent of methanol (1 mL) and ethyl acetate (4 mL). To the solution was added 10% palladium-carbon powder (60 mg), and the mixture was stirred at room temperature under a hydrogen atmosphere for 30 minutes. To the reaction mixture was added sodium hydrogen carbonate (200 mg), and the mixture was stirred at room temperature for 10 minutes. The insoluble material was removed by filtration, and the solvent was removed under reduced pressure. The residue was purified by preparative reverse phase column chromatography (Shiseido CAPCELL PAK C18 ODS, UG80, 5 μm, 20×50 mm, linear gradient water/methanol=90/10-10/90, flow rate 30 mL/min) to give the title compound (39 mg).

Workup

  1. temperaturecooling
  2. stirringthe mixture was stirred at the same temperature for 15 minutes
  3. stirringstirred at room temperature for 1 hour
  4. extractionthe resulting mixture was extracted with ethyl acetate
  5. washThe extract was washed with water and brine successively
  6. dry with materialdried over anhydrous sodium sulfate
  7. customThe solvent was removed under reduced pressure
  8. customthe residue was purified by column chromatography on silica gel (eluent: n-hexane/ethyl acetate=4/1)

Sources & evidence

ORD record
ord-8585b5128ef145678796f22c6b868c23
Source dataset
uspto-grants-2010_07
Patent number
US07750145B2

Reaction notes

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