3-Oxotetrahydrofuran → 1-Benzyl-N-(3,4-difluorobenzyl)-2-isopropyl-6-(tetrahydrofuran-3-ylamino)-1H-indole-3-carboxamide

HRID 40123Notes

Reaction equation

HRID 40123 reaction equation
[NH2:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([C:21]([NH:23][CH2:24][C:25]3[CH:30]=[CH:29][C:28]([F:31])=[C:27]([F:32])[CH:26]=3)=[O:22])=[C:7]([CH:18]([CH3:20])[CH3:19])[N:8]2[CH2:11][C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)=[CH:4][CH:3]=1.[O:33]1[CH2:37][CH2:36][C:35](=O)[CH2:34]1.[BH3-]C#N.[Na+]>CO.CC(O)=O.CCOC(C)=O>[CH2:11]([N:8]1[C:9]2[C:5](=[CH:4][CH:3]=[C:2]([NH:1][CH:35]3[CH2:36][CH2:37][O:33][CH2:34]3)[CH:10]=2)[C:6]([C:21]([NH:23][CH2:24][C:25]2[CH:30]=[CH:29][C:28]([F:31])=[C:27]([F:32])[CH:26]=2)=[O:22])=[C:7]1[CH:18]([CH3:19])[CH3:20])[C:12]1[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=1

Participants

7

Reactant 3

HCID 5293923-Oxotetrahydrofuran2×HCID 5003444Sodium cyanoborohydrideHCID 597624316-Amino-1-benzyl-N-(3,4-difluorobenzyl)-2-isopropyl-1H-indole-3-carboxamide2×

Product 1

HCID 597623441-Benzyl-N-(3,4-difluorobenzyl)-2-isopropyl-6-(tetrahydrofuran-3-ylamino)-1H-indole-3-carboxamide

Reagents, catalysts & solvents 3

HCID 176Acetic AcidCatalystHCID 887MethanolSolventHCID 8857Ethyl AcetateSolvent

Procedure

General Procedure T. To a solution of 6-amino-1-benzyl-N-(3,4-difluorobenzyl)-2-isopropyl-1H-indole-3-carboxamide (Compound 125, 15 mg, 0.035 mmol) in MeOH (1 ml) was added dihydrofuran-3(2H)-one (Compound 129, 6.0 mg, 0.069 mmol), NaBH3CN (2.2 mg, 0.035 mmol), and HOAc (1 drop). The reaction was stirred at room temperature for 3 h, diluted with EtOAc, washed with aqueous Na2CO3 and brine, dried over Na2SO4, and concentrated in vacuo. The residue was purified by chromatography on silica gel (0→50% EtOAc-hexanes) to yield the title compound.

Workup

  1. washwashed with aqueous Na2CO3 and brine
  2. dry with materialdried over Na2SO4
  3. concentrationconcentrated in vacuo
  4. customThe residue was purified by chromatography on silica gel (0→50% EtOAc-hexanes)

Sources & evidence

ORD record
ord-eb0d5f0cd56b499c85be4bc1524d9cd9
Source dataset
uspto-grants-2013_09
Patent number
US08524917B2

Reaction notes

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