Methanol → N-(1-(2-(4-chlorophenyl)-1-hydroxybutan-2-yl)-1H-indazol-4-yl)-N-((2-(trimethylsilyl) ethoxy)methyl)methanesulfonamide

HRID 1427233Notes

Reaction equation

HRID 1427233 reaction equation
[Li+].[BH4-].CO.[Cl:5][C:6]1[CH:11]=[CH:10][C:9]([C:12]([N:19]2[C:27]3[C:22](=[C:23]([N:28]([CH2:33][O:34][CH2:35][CH2:36][Si:37]([CH3:40])([CH3:39])[CH3:38])[S:29]([CH3:32])(=[O:31])=[O:30])[CH:24]=[CH:25][CH:26]=3)[CH:21]=[N:20]2)([CH2:17][CH3:18])[C:13](OC)=[O:14])=[CH:8][CH:7]=1>C1COCC1>[Cl:5][C:6]1[CH:11]=[CH:10][C:9]([C:12]([N:19]2[C:27]3[C:22](=[C:23]([N:28]([CH2:33][O:34][CH2:35][CH2:36][Si:37]([CH3:39])([CH3:38])[CH3:40])[S:29]([CH3:32])(=[O:30])=[O:31])[CH:24]=[CH:25][CH:26]=3)[CH:21]=[N:20]2)([CH2:17][CH3:18])[CH2:13][OH:14])=[CH:8][CH:7]=1

Participants

5

Reactant 3

HCID 887MethanolHCID 4148881Lithium borohydrideHCID 70565947methyl 2-(4-chlorophenyl)-2-(4-(N-((2-(trimethylsilyl)ethoxy)methyl)methylsulfonamido)-1H-indazol-1-yl)butanoate

Product 1

HCID 57524055N-(1-(2-(4-chlorophenyl)-1-hydroxybutan-2-yl)-1H-indazol-4-yl)-N-((2-(trimethylsilyl) ethoxy)methyl)methanesulfonamide

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

To a suspension of LiBH4 (120 mg, 5.43 mmol) in THF (5 mL) was added MeOH (174 mg, 5.43 mmol) and a solution of methyl 2-(4-chlorophenyl)-2-(4-(N-((2-(trimethylsilyl)ethoxy)methyl)methylsulfonamido)-1H-indazol-1-yl)butanoate (600 mg, 1.09 mmol) in THF (8 mL) followed. The mixture was stirred at room temperature for 2 h. The solution was quenched with saturated NH4Cl solution, and extracted with ethyl acetate (30 mL). The organic layer was washed with brine, dried over sodium sulfate, filtered and evaporated. The residue was purified by silica gel chromatography (PE/EA=3/1) to afford the title compound as a pale yellow solid. LC/MS m/z=524.2 [M+H]+.

Workup

  1. customThe solution was quenched with saturated NH4Cl solution
  2. extractionextracted with ethyl acetate (30 mL)
  3. washThe organic layer was washed with brine
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. customevaporated
  7. customThe residue was purified by silica gel chromatography (PE/EA=3/1)

Sources & evidence

ORD record
ord-7354c328f39249759813b1811a7b32ff
Source dataset
uspto-grants-2015_01
Patent number
US08933113B2

Reaction notes

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