Reaction #11957

ord-ca2b518cac5f495b9803aa3ec5936836

Solvents

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    OtherAfter the reaction
  2. 2
    Otherthe solvent was removed by distillation
  3. 3
    workup.DISSOLUTIONThe residue was dissolved in distilled water
  4. 4
    workup.ADDITION1 mol/l aqueous solution of hydrochloric acid was added
  5. 5
    Otherto produce a precipitate
  6. 6
    FiltrationThe precipitate was collected by filtration
  7. 7
    Otherdried

Procedure

The compound obtained in Example 25-1 (266.6 mg) was dissolved in THF (2.7 ml) and methanol (2.7 ml). After the addition of 1 mol/l aqueous solution of sodium hydroxide (2.7 ml), the mixture was stirred for 5 hours at room temperature. After the reaction, the solvent was removed by distillation. The residue was dissolved in distilled water and 1 mol/l aqueous solution of hydrochloric acid was added to produce a precipitate. The precipitate was collected by filtration and dried to obtain the title compound (233.5 mg) as a white solid.

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US07098215B2uspto-grants-2006_08