반응 #471133
ord-42440f3eab64463fad7cf61d6ceb2053
반응 방정식
반응 조건
후처리
- 1추출extracted with EtOAc
- 2세척The organic layer was washed with water
- 3세척Next, the aqueous layer was washed with EtOAc
- 4추출the aqueous layer was extracted with CHCl3
- 5건조The organic layer was dried over MgSO4
- 6농축concentrated under reduced pressure
- 7기타The residue was purified by basic silica gel column chromatography (manufactured by Fuji Silysia Chemical Ltd., YAMAZEN YFLC WPrep2XY, CHCl3)
- 8농축The collected fraction was concentrated under reduced pressure
- 9기타the oil obtained
- 10기타to dry
- 11기타To the residue obtained
- 12기타for crystallization
실험 절차
A solution of a mixture of 1-azabicyclo[2.2.2]oct-3-yl(2-bromo-3-thienyl)carbamate (295 mg), Pd(PPh3)4 (103 mg), 4-fluorophenyl boric acid (187 mg), and 1,4-dioxane (3 mL) was added a 2 M aqueous Na2CO3 solution (0.89 mL), followed by stirring under heating at 90° C. for 5 hours. The reaction mixture was diluted with water, and extracted with EtOAc. The organic layer was washed with water, and adjusted into pH=1 with 1 M hydrochloric acid. Next, the aqueous layer was washed with EtOAc and adjusted to pH=10 with an aqueous NaOH solution, and the aqueous layer was extracted with CHCl3. The organic layer was dried over MgSO4, and concentrated under reduced pressure. The residue was purified by basic silica gel column chromatography (manufactured by Fuji Silysia Chemical Ltd., YAMAZEN YFLC WPrep2XY, CHCl3). The collected fraction was concentrated under reduced pressure and the oil obtained was dissolved in EtOAc, followed by addition of 4 M HCl/EtOAc, concentration under reduced pressure, and solidification to dry. To the residue obtained were added EtOH and EtOAc for crystallization to obtain 1-azabicyclo[2.2.2]oct-3-yl [2-(4-fluorophenyl)-3-thienyl]carbamate hydrochloride (135 mg) as a white solid.