반응 #11935
ord-67abb265325d4c0db000f071744365b3
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상세 조건
See reaction.notes.procedure_details.
후처리
- 1기타After the reaction
- 2기타the solvent was removed by distillation
- 3기타The residue was purified by silica gel column chromatography (1.0 g, chloroform/methanol/water=7/3/0.5)
- 4workup.ADDITIONThe obtained product was added with an aqueous solution of hydrochloric acid
- 5농축concentrated
- 6workup.DISTILLATIONazeotropically distilled with water
- 7세척The 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.