Methyl 6-(benzenesulphonylmethyl)-2-(3-t-butyoxycarbonylamino-prop-1-yn-1-yl)-3-(furan-3-yl)benzoate → Methyl 6-(benzenesulphonylmethyl)-2-(3-t-butoxycarbonylaminopropyl)-3-(furan-3-yl)benzoate

HRID 2177792Notes

Reaction equation

HRID 2177792 reaction equation
[C:1]1([S:7]([CH2:10][C:11]2[C:16]([C:17]([O:19][CH3:20])=[O:18])=[C:15]([C:21]#[C:22][CH2:23][NH:24][C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[C:14]([C:32]3[CH:36]=[CH:35][O:34][CH:33]=3)=[CH:13][CH:12]=2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[H][H]>[Pd].C(O)C.C1COCC1>[C:1]1([S:7]([CH2:10][C:11]2[C:16]([C:17]([O:19][CH3:20])=[O:18])=[C:15]([CH2:21][CH2:22][CH2:23][NH:24][C:25]([O:27][C:28]([CH3:29])([CH3:30])[CH3:31])=[O:26])[C:14]([C:32]3[CH:36]=[CH:35][O:34][CH:33]=3)=[CH:13][CH:12]=2)(=[O:9])=[O:8])[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Participants

6

Reactant 2

HCID 67107946Methyl 6-(benzenesulphonylmethyl)-2-(3-t-butyoxycarbonylamino-prop-1-yn-1-yl)-3-(furan-3-yl)benzoate2×HCID 178418361HCID 178418361, compound

Product 1

HCID 67107639Methyl 6-(benzenesulphonylmethyl)-2-(3-t-butoxycarbonylaminopropyl)-3-(furan-3-yl)benzoateYield 51.9%

Reagents, catalysts & solvents 3

HCID 23938PalladiumCatalystHCID 702EthanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

10% Palladium on carbon (0.05 g) was added to a solution of methyl 6-(benzenesulphonylmethyl)-2-(3-t-butyoxycarbonylamino-prop-1-yn-1-yl)-3-(furan-3-yl)benzoate (Intermediate 132, 0.22 g) in ethanol (10 ml) and THF (10 ml) and the mixture was stirred at room temperature in an atmosphere of hydrogen (balloon) for 60 hours. The mixture was filtered through Celite and the filtrate was evaporated to dryness. The residue was purified by chromatography on silica eluting with a mixture of ethyl acetate and cyclohexane with a gradient of 25-60% to give methyl 6-(benzenesulphonylmethyl)-2-(3-t-butoxycarbonylaminopropyl)-3-(furan-3-yl)benzoate (0.115 g) as a colourless gum.

Workup

  1. filtrationThe mixture was filtered through Celite
  2. customthe filtrate was evaporated to dryness
  3. customThe residue was purified by chromatography on silica eluting with a mixture of ethyl acetate and cyclohexane with a gradient of 25-60%

Sources & evidence

ORD record
ord-cb1c0d29a8d9489f8253289c2090503d
Source dataset
uspto-grants-2015_06
Patent number
US09067905B2

Reaction notes

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