Réaction #10590

ord-40e9753b7e624fac9a959e0125d91815

Conditions de réaction

Conditions détaillées
See reaction.notes.procedure_details.

Traitement

  1. 1
    Autre(50° C., 2 hours)
  2. 2
    Autrethe solvent was evaporated under reduced pressure
  3. 3
    workup.ADDITIONThe residue was added with methanol (1 ml) and diethyl ether (3 ml)
  4. 4
    AutreThe deposited precipitates
  5. 5
    Filtrationwere collected by filtration
  6. 6
    Lavagewashed with diethyl ether

Mode opératoire

According to the method of Example 1, Step C, deprotection was performed (50° C., 2 hours) by using Intermediate 6 (249 mg) and 10% hydrogen chloride/methanol solution (5 ml). The reaction mixture was cooled to room temperature, and then the solvent was evaporated under reduced pressure. The residue was added with methanol (1 ml) and diethyl ether (3 ml). The deposited precipitates were collected by filtration and washed with diethyl ether to obtain the title compound (188 mg) as white powdery solid.

Source

DOI: 10.6084/m9.figshare.5104873.v1Brevet: US07094789B2uspto-grants-2006_08