Tetrabutylammonium Fluoride → [(3RS,4SR)-3-[(RS)-1-(5-Chloro-pyridin-2-yloxy)-2-hydroxy-ethyl]-4-(3,4-dichloro-phenyl)-pyrrolidin-1-yl]-(2-methyl-pyrimidin-5-yl)-methanone

HRID 906924Notes

Reaction equation

HRID 906924 reaction equation
C([Si](C)(C)[O:6][CH2:7][CH:8]([CH:17]1[CH:21]([C:22]2[CH:27]=[CH:26][C:25]([Cl:28])=[C:24]([Cl:29])[CH:23]=2)[CH2:20][N:19]([C:30]([C:32]2[CH:37]=C(C)N=[N:34][CH:33]=2)=[O:31])[CH2:18]1)[O:9][C:10]1[CH:15]=[CH:14][C:13]([Cl:16])=[CH:12][N:11]=1)(C)(C)C.CC[CH2:43][CH2:44][N+:45](CCCC)(CCCC)CCCC.[F-]>C1COCC1.C(OCC)(=O)C>[Cl:16][C:13]1[CH:14]=[CH:15][C:10]([O:9][CH:8]([CH:17]2[CH:21]([C:22]3[CH:27]=[CH:26][C:25]([Cl:28])=[C:24]([Cl:29])[CH:23]=3)[CH2:20][N:19]([C:30]([C:32]3[CH:33]=[N:34][C:44]([CH3:43])=[N:45][CH:37]=3)=[O:31])[CH2:18]2)[CH2:7][OH:6])=[N:11][CH:12]=1

Participants

5

Reactant 2

HCID 2724141Tetrabutylammonium FluorideHCID 67131606[(3RS,4SR)-3-[(RS)-2-(tert-butyl-dimethyl-silanyloxy)-1-(5-chloro-pyridin-2-yloxy)-ethyl]-4-(3,4-dichloro-phenyl)-pyrrolidin-1-yl]-(6-methyl-pyridazin-4-yl)-methanone

Product 1

HCID 67131690[(3RS,4SR)-3-[(RS)-1-(5-Chloro-pyridin-2-yloxy)-2-hydroxy-ethyl]-4-(3,4-dichloro-phenyl)-pyrrolidin-1-yl]-(2-methyl-pyrimidin-5-yl)-methanoneYield 93%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of [(3RS,4SR)-3-[(RS)-2-(tert-butyl-dimethyl-silanyloxy)-1-(5-chloro-pyridin-2-yloxy)-ethyl]-4-(3,4-dichloro-phenyl)-pyrrolidin-1-yl]-(6-methyl-pyridazin-4-yl)-methanone 0.024 g (0.038 mmol) dissolved in THF (4 mL) was added 0.05 mL of TBAF (1.0M in THF). The reaction mixture was stirred for 30 minutes at room temperature. The mixture was diluted with ethyl acetate and washed with water and aq. sodium bicarbonate solution subsequently. The separated organic phase was dried over sodium sulfate and concentrated in vaccuo after filtration. The residue was purified by TLC (SiO2, MeOH/DCM, 1:10) yielded 18 mg (93%) of the title compound as a light yellow oil. ES-MS m/e: 509.2 (M+H+).

Workup

  1. washwashed with water and aq. sodium bicarbonate solution subsequently
  2. dry with materialThe separated organic phase was dried over sodium sulfate
  3. concentrationconcentrated in vaccuo
  4. filtrationafter filtration
  5. customThe residue was purified by TLC (SiO2, MeOH/DCM, 1:10)

Sources & evidence

ORD record
ord-56126ca93cec4b5d81d1717568b811fe
Source dataset
uspto-grants-2011_09
Patent number
US08012998B2

Reaction notes

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