반응 #11935

ord-67abb265325d4c0db000f071744365b3

용매

반응 조건

상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    기타After the reaction
  2. 2
    기타the solvent was removed by distillation
  3. 3
    기타The residue was purified by silica gel column chromatography (1.0 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
    농축concentrated
  6. 6
    workup.DISTILLATIONazeotropically distilled with water
  7. 7
    세척The resulting solid was washed with ether

실험 절차

The compound obtained in Example 8-8 (18.0 mg) was dissolved in methanol (0.2 ml) and 4 mol/l hydrochloric acid/dioxane solution was added. The mixture was stirred for 1.5 hours at room temperature. After the reaction, the solvent was removed by distillation. The residue was purified by silica gel column chromatography (1.0 g, chloroform/methanol/water=7/3/0.5). The obtained product was added with an aqueous solution of hydrochloric acid, concentrated and then azeotropically distilled with water. The resulting solid was washed with ether to obtain a hydrochloride of the title compound (14.4 mg) as a white solid.

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US07098215B2uspto-grants-2006_08