Methyl 2-acetylamino-6-(2,2-dimethylpropionylamino)-3-(2-hydroxymethylfuran-3-yl)benzoate → methyl 2-acetylamino-6-(2,2-dimethylpropionylamino)-3-[cis-(2RS,3RS)-2-(hydroxymethyl)tetrahydrofuran-3-yl]benzoate

HRID 927923Notes

Reaction equation

HRID 927923 reaction equation
[C:1]([NH:4][C:5]1[C:14]([C:15]2[CH:19]=[CH:18][O:17][C:16]=2[CH2:20][OH:21])=[CH:13][CH:12]=[C:11]([NH:22][C:23](=[O:28])[C:24]([CH3:27])([CH3:26])[CH3:25])[C:6]=1[C:7]([O:9][CH3:10])=[O:8])(=[O:3])[CH3:2].[H][H]>O1CCOCC1.C(O)(=O)C.[OH-].[OH-].[Pd+2]>[C:1]([NH:4][C:5]1[C:14]([C@H:15]2[CH2:19][CH2:18][O:17][C@H:16]2[CH2:20][OH:21])=[CH:13][CH:12]=[C:11]([NH:22][C:23](=[O:28])[C:24]([CH3:27])([CH3:26])[CH3:25])[C:6]=1[C:7]([O:9][CH3:10])=[O:8])(=[O:3])[CH3:2]

Participants

6

Reactant 2

HCID 70984627Methyl 2-acetylamino-6-(2,2-dimethylpropionylamino)-3-(2-hydroxymethylfuran-3-yl)benzoate2×HCID 178418361HCID 178418361, compound

Product 1

HCID 70983847methyl 2-acetylamino-6-(2,2-dimethylpropionylamino)-3-[cis-(2RS,3RS)-2-(hydroxymethyl)tetrahydrofuran-3-yl]benzoateYield 69.3%

Reagents, catalysts & solvents 3

HCID 9942167Palladium hydroxideCatalystHCID 176Acetic AcidSolventHCID 312751,4-DioxaneSolvent

Procedure

A solution of methyl 2-acetylamino-6-(2,2-dimethylpropionylamino)-3-(2-hydroxymethylfuran-3-yl)benzoate (Intermediate 38, 0.2 g) in dioxane (4 mL) and acetic acid (1 mL) was treated under an atmosphere of nitrogen with palladium hydroxide on carbon (10%, 0.03 g). The nitrogen was replaced by hydrogen and the mixture was stirred under an atmosphere of hydrogen overnight. The mixture was filtered through Celite and the pad was washed thoroughly with ethyl acetate. The filtrate was evaporated to dryness and the residue was purified by chromatography on silica eluting with a mixture of methanol and ethyl acetate with a gradient of 0-10% to give methyl 2-acetylamino-6-(2,2-dimethylpropionylamino)-3-[cis-(2RS,3RS)-2-(hydroxymethyl)tetrahydrofuran-3-yl]benzoate (0.14 g) as a white solid.

Workup

  1. filtrationThe mixture was filtered through Celite
  2. washthe pad was washed thoroughly with ethyl acetate
  3. customThe filtrate was evaporated to dryness
  4. customthe residue was purified by chromatography on silica eluting with a mixture of methanol and ethyl acetate with a gradient of 0-10%

Sources & evidence

ORD record
ord-4ab099e12fdc4939a777b4c08bdd6a57
Source dataset
uspto-grants-2016_03
Patent number
US09290472B2

Reaction notes

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