HCID 59140413, compound → HCID 86637791, compound

HRID 1881412Notes

Reaction equation

HRID 1881412 reaction equation
C([Li])CCC.[S:6]1[CH2:11][CH2:10][CH2:9][S:8][CH:7]1[C:12]1[CH:17]=[CH:16][C:15]([C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][N:19]=2)=[CH:14][CH:13]=1.[CH3:24][C:25]([CH3:41])([CH3:40])[CH2:26][C:27]1[N:28]=[C:29]([CH:38]=[O:39])[N:30]([S:32]([N:35]([CH3:37])[CH3:36])(=[O:34])=[O:33])[CH:31]=1>O1CCCC1>[CH3:24][C:25]([CH3:41])([CH3:40])[CH2:26][C:27]1[N:28]=[C:29]([CH:38]([OH:39])[C:7]2([C:12]3[CH:13]=[CH:14][C:15]([C:18]4[CH:23]=[CH:22][CH:21]=[CH:20][N:19]=4)=[CH:16][CH:17]=3)[S:8][CH2:9][CH2:10][CH2:11][S:6]2)[N:30]([S:32]([N:35]([CH3:36])[CH3:37])(=[O:33])=[O:34])[CH:31]=1

Participants

5

Reactant 3

HCID 59140413HCID 59140413, compound2×HCID 86637792HCID 86637792, compoundHCID 178418339Butyllithium

Product 1

HCID 86637791HCID 86637791, compound

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Conditions

Temperature
0 °C

Procedure

n-Butyllithium (2.5 M in hexane) (0.14 mL, 0.17 mol) was added to a −78° C. solution of 2-[4-(1,3-dithian-2-yl)phenyl]pyridine (50 mg, 0.18 mmol) in tetrahydrofuran (3 mL). After stirring at 0° C. for 10 min, the reaction mixture was re-cooled to −78° C. and a solution of 4-(2,2-dimethylpropyl)-2-formyl-N,N-dimethyl-1H-imidazole-1-sulfonamide (intermediate 13) (100 mg, 0.37 mmol) in tetrahydrofuran (1 mL) was added. After stirring at −78° C. for 5 min then at ambient temperature for a further 10 min, the reaction mixture was quenched with water and extracted with methylene chloride. The combined organic extracts were dried (magnesium sulfate) and concentrated in vacuo. Preparative plate chromatography eluting with 50% ethyl acetate/hexane afforded 4-(2,2-dimethylpropyl)-2-{hydroxy[2-(4-pyridin-2-ylphenyl)-1,3-dithian-2-yl]methyl}-N,N-dimethyl-1H-imidazole-1-sulfonamide.

Workup

  1. temperaturethe reaction mixture was re-cooled to −78° C.
  2. stirringAfter stirring at −78° C. for 5 min
  3. waitat ambient temperature for a further 10 min
  4. customthe reaction mixture was quenched with water
  5. extractionextracted with methylene chloride
  6. dry with materialThe combined organic extracts were dried (magnesium sulfate)
  7. concentrationconcentrated in vacuo
  8. washPreparative plate chromatography eluting with 50% ethyl acetate/hexane

Sources & evidence

ORD record
ord-36092c1f8b2041cfadd56dd09ab99939
Source dataset
uspto-grants-2012_11
Patent number
US08318767B2

Reaction notes

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