تفاعل #11945

ord-ba3b184e2c9341639bd6d7c29b775726

المذيبات

ظروف التفاعل

الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    أخرىAfter the reaction
  2. 2
    أخرىthe solvent was removed by distillation
  3. 3
    أخرىThe residue was purified by silica gel column chromatography (1 g, chloroform/methanol/water=7/3/0.5)
  4. 4
    workup.ADDITIONThe obtained product was added with an aqueous solution of hydrochloric acid
  5. 5
    workup.DISTILLATIONazeotropically distilled with water
  6. 6
    غسيلThe resulting solid was washed with ether

الإجراء التجريبي

The compound obtained in Example 12-5 (26.8 mg) was dissolved in methanol (0.5 ml), and 4 mol/l hydrochloric acid/dioxane solution (0.5 ml) was added. The mixture was stirred for 4.5 hours at room temperature. After the reaction, the solvent was removed by distillation. The residue was purified by silica gel column chromatography (1 g, chloroform/methanol/water=7/3/0.5). The obtained product was added with an aqueous solution of hydrochloric acid and concebtrated, and then azeotropically distilled with water. The resulting solid was washed with ether to obtain a hydrochloride of the title compound (25.8 mg) as a white solid.

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US07098215B2uspto-grants-2006_08