Reacción #1440334

ord-3de87f195f744a85ab0f7aa8daebef8f

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    ConcentraciónThe reaction mixture was concentrated
  2. 2
    workup.ADDITIONthe residue was diluted with ethyl acetate
  3. 3
    LavadoThe diluted solution was washed with 1 N hydrochloric acid, water
  4. 4
    Secadoa saturated saline in this order, dried with anhydrous magnesium sulfate
  5. 5
    Concentraciónconcentrated
  6. 6
    OtroThe residue was purified by silica gel column chromatography (hexane:ethyl acetate=4:1)

Procedimiento

To a dioxane (15 ml) solution of the compound prepared in Example 10, pyridine (363 μl) and trifluoroacetic acid (423 μl) were added, followed by stirring at room temperature for 1 hour. The reaction mixture was concentrated, and the residue was diluted with ethyl acetate. The diluted solution was washed with 1 N hydrochloric acid, water and a saturated saline in this order, dried with anhydrous magnesium sulfate, and concentrated. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=4:1) to thereby obtain the title compound (533 mg) having the following physical data.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US07220864B2uspto-grants-2007_05