Reacción #64717

ord-6029f0ddbc5f49ef962aebcb76173fc8

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Temperaturathe suspension was heated
  2. 2
    Temperaturaunder reflux for 30 minutes
  3. 3
    ConcentraciónThe resulting mixture was concentrated under reduced pressure, and water
  4. 4
    workup.ADDITIONwas added to the residue
  5. 5
    ExtracciónThe resulting mixture was extracted with ethyl acetate
  6. 6
    Secadothe extract was dried over anhydrous magnesium sulfate
  7. 7
    ConcentraciónAfter concentration under reduced pressure
  8. 8
    Otrothe residue was recrystallized

Procedimiento

In a mixture of 50 ml of saturated aqueous sodium. hydrogencarbonate solution and 50 ml of methanol was suspended 2.6 g of Compound 2 prepared in Example 1, and the suspension was heated under reflux for 30 minutes. The resulting mixture was concentrated under reduced pressure, and water was added to the residue. The resulting mixture was extracted with ethyl acetate, and the extract was dried over anhydrous magnesium sulfate. After concentration under reduced pressure, the residue was recrystallized to afford 1.23 g of the desired product.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US05413997uspto-grants-1995_05