반응식
[NH2:1][C:2]1[N:6]([C:7]2[CH:8]=[CH:9][C:10]([O:15][Si:16]([CH:23]([CH3:25])[CH3:24])([CH:20]([CH3:22])[CH3:21])[CH:17]([CH3:19])[CH3:18])=[C:11]([CH2:13][OH:14])[CH:12]=2)[N:5]=[C:4]([C:26]([CH3:29])([CH3:28])[CH3:27])[CH:3]=1.[OH-].[Na+].[Cl:32][C:33]([Cl:40])([Cl:39])[CH2:34][O:35][C:36](Cl)=[O:37]>CCOC(C)=O.O>[Cl:32][C:33]([Cl:40])([Cl:39])[CH2:34][O:35][C:36](=[O:37])[NH:1][C:2]1[N:6]([C:7]2[CH:8]=[CH:9][C:10]([O:15][Si:16]([CH:20]([CH3:21])[CH3:22])([CH:23]([CH3:25])[CH3:24])[CH:17]([CH3:18])[CH3:19])=[C:11]([CH2:13][OH:14])[CH:12]=2)[N:5]=[C:4]([C:26]([CH3:29])([CH3:28])[CH3:27])[CH:3]=1참가 물질
실험 절차
To a solution of Intermediate 61c (0.15 g, 0.36 mmol) in EtOAc (1.8 mL) was added 1N aqueous NaOH solution (0.6 mL, 0.60 mmol) followed by 2,2,2-trichloroethylchloroformate (54.0 μL, 0.40 mmol). The reaction was stirred at RT overnight then treated with another portion of 1N aqueous NaOH solution (0.3 mL, 0.30 mmol) followed by 2,2,2-trichloroethylchloroformate (27.0 μL, 0.20 mmol). After stirring for another 4 h, the mixture was diluted with EtOAc and water. The aqueous layer was then extracted with EtOAc (2×). The combined organic layers were washed with brine, dried (Na2SO4), filtered and evaporated in vacuo. The residue was purified by FCC, using 0-25% EtOAc in cyclohexane, to give the title compound (176 mg, 84%). LCMS (Method 3): Rt 5.35 min, m/z 592, 594 [MH+].
후처리
- stirringAfter stirring for another 4 h
- extractionThe aqueous layer was then extracted with EtOAc (2×)
- washThe combined organic layers were washed with brine
- dry with materialdried (Na2SO4)
- filtrationfiltered
- customevaporated in vacuo
- customThe residue was purified by FCC
출처 및 근거
- ORD 기록
- ord-aa1b9967686a4a40bc02b8814a2e7f36
- 출처 데이터셋
- uspto-grants-2016_09
- 특허 번호
- US09440974B2
연결된 노트
불러오는 중…