Tetrabutylammonium Fluoride → HCID 59577355, compound

HRID 1186612Notes

Reaction equation

HRID 1186612 reaction equation
[Si]([O:8][CH2:9][CH2:10][NH:11][C:12]1[CH:38]=[C:37]([N:39]2[CH2:44][CH2:43][N:42]([CH3:45])[CH2:41][CH2:40]2)[CH:36]=[CH:35][C:13]=1[C:14]([NH:16][C:17]1[C:25]2[C:20](=[CH:21][CH:22]=[C:23]([CH2:26][C:27]3[CH:32]=[C:31]([F:33])[CH:30]=[C:29]([F:34])[CH:28]=3)[CH:24]=2)[NH:19][N:18]=1)=[O:15])(C(C)(C)C)(C)C.CCCC[N+](CCCC)(CCCC)CCCC.[F-]>C1COCC1>[F:33][C:31]1[CH:32]=[C:27]([CH:28]=[C:29]([F:34])[CH:30]=1)[CH2:26][C:23]1[CH:24]=[C:25]2[C:20](=[CH:21][CH:22]=1)[NH:19][N:18]=[C:17]2[NH:16][C:14](=[O:15])[C:13]1[CH:35]=[CH:36][C:37]([N:39]2[CH2:40][CH2:41][N:42]([CH3:45])[CH2:43][CH2:44]2)=[CH:38][C:12]=1[NH:11][CH2:10][CH2:9][OH:8]

Participants

4

Reactant 2

HCID 2724141Tetrabutylammonium FluorideHCID 68671892HCID 68671892, compound

Product 1

HCID 59577355HCID 59577355, compoundYield 79.7%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

2-[(2-{[tert-butyl(dimethyl)silyl]oxy}ethyl)amino]-N-[5-(3,5-difluorobenzyl)-1H-indazol-3-yl]-4-(4-methylpiperazin-1-yl)benzamide (126 mg, 0.2 mmol) was dissolved in dry THF (3 mL) and 1M TBAF in THF (0.24 mL) was added at 0° C. The resulting solution was stirred overnight at room temperature. Reaction was quenched with water and extracted with ethyl acetate. Collected organic phases were dried over Na2SO4, filtered and evaporated to dryness. Residue was purified by column chromatography over silica gel (DCM/EtOH/NH3 5N in MeOH=85/15/1) affording 83 mg of title compound.

Workup

  1. customReaction
  2. customwas quenched with water
  3. extractionextracted with ethyl acetate
  4. dry with materialCollected organic phases were dried over Na2SO4
  5. filtrationfiltered
  6. customevaporated to dryness
  7. customResidue was purified by column chromatography over silica gel (DCM/EtOH/NH3 5N in MeOH=85/15/1)

Sources & evidence

ORD record
ord-424f8d58af824575b46d17026d7d7b3d
Source dataset
uspto-grants-2014_03
Patent number
US08673893B2

Reaction notes

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