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1-(benzyloxycarbonyl)-3-(6-O-ethoxy-carbonyl-beta-D-glucopyranosyloxy)-4-[(4-isopropoxyphenyl)-methyl]-5-methylpyrazole → 3-(6-O-ethoxycarbonyl-beta-D-glucopyranosyloxy)-4-[(4-isopropoxyphenyl)methyl]-5-methyl-1H-pyrazole

HRID 1668333
Notes
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Reaction equation

HRID 1668333 reaction equation
C(OC([N:11]1[C:15]([CH3:16])=[C:14]([CH2:17][C:18]2[CH:23]=[CH:22][C:21]([O:24][CH:25]([CH3:27])[CH3:26])=[CH:20][CH:19]=2)[C:13]([O:28][C@@H:29]2[O:37][C@H:36]([C:38](=C=O)[O:39]OCC)[C@@H:34]([OH:35])[C@H:32]([OH:33])[C@H:30]2[OH:31])=[N:12]1)=O)C1C=CC=CC=1>O1CCCC1.[C].[Pd]>[CH2:13]([O:28][C:29]([O:39][CH2:38][C@H:36]1[O:37][C@@H:29]([O:28][C:13]2[C:14]([CH2:17][C:18]3[CH:19]=[CH:20][C:21]([O:24][CH:25]([CH3:27])[CH3:26])=[CH:22][CH:23]=3)=[C:15]([CH3:16])[NH:11][N:12]=2)[C@H:30]([OH:31])[C@@H:32]([OH:33])[C@@H:34]1[OH:35])=[O:37])[CH3:14]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 1

HCID 866027901-(benzyloxycarbonyl)-3-(6-O-ethoxy-carbonyl-beta-D-glucopyranosyloxy)-4-[(4-isopropoxyphenyl)-methyl]-5-methylpyrazole

Product 1

HCID 235431683-(6-O-ethoxycarbonyl-beta-D-glucopyranosyloxy)-4-[(4-isopropoxyphenyl)methyl]-5-methyl-1H-pyrazoleYield 150%

Reagents, catalysts & solvents 2

HCID 178418390HCID 178418390, compoundCatalystHCID 8028Tetrahydrofuran
Solvent

Procedure

To a solution of 1-(benzyloxycarbonyl)-3-(6-O-ethoxy-carbonyl-β-D-glucopyranosyloxy)-4-[(4-isopropoxyphenyl)-methyl]-5-methylpyrazole (0.17 g) in tetrahydrofuran (4 mL) was added 10% palladium-carbon powder, and the mixture was stirred under hydrogen atmosphere at room temperature for 3 hours. The resulting insoluble material was removed by filtration, and the solvent of the filtrate was removed under reduced pressure. The residue was purified by column chromatography on silica gel (eluent: dichloromethane/methanol=10/1) to give 3-(6-O-ethoxycarbonyl-β-D-glucopyranosyloxy)-4-[(4-isopropoxy-phenyl)methyl]-5-methyl-1H-pyrazole (0.10 g).

Workup

  1. customThe resulting insoluble material was removed by filtration
  2. customthe solvent of the filtrate was removed under reduced pressure
  3. customThe residue was purified by column chromatography on silica gel (eluent: dichloromethane/methanol=10/1)

Sources & evidence

ORD record
ord-ccb6dbfe7be04861b63b808bfd41ab91
Source dataset
uspto-grants-2011_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07989424B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes