Hydrochloric Acid → N-(3,5-Difluoro-4-iodopyridin-2-yl)propane-1-sulfonamide
반응식
[F:1][C:2]1[C:3]([N:10](S(CCC)(=O)=O)[S:11]([CH2:14][CH2:15][CH3:16])(=[O:13])=[O:12])=[N:4][CH:5]=[C:6]([F:9])[C:7]=1[I:8].Cl>[OH-].[Na+]>[F:1][C:2]1[C:3]([NH:10][S:11]([CH2:14][CH2:15][CH3:16])(=[O:13])=[O:12])=[N:4][CH:5]=[C:6]([F:9])[C:7]=1[I:8]참가 물질
4
실험 절차
Crude N-(3,5-Difluoro-4-iodopyridin-2-yl)-N-(propylsulfonyl)propane-1-sulfonamide (obtained in Step 1) was stirred with 5% aqueous sodium hydroxide solution (20 ml) at 60° C. for 1 h. The cooled reaction mixture was then acidified with 10% hydrochloric acid to pH<2 and extracted with DCM. The combined extracts were dried over sodium sulfate, filtered, and concentrated. The residue was chromatographed on silica gel (20-30% ethyl acetate in hexanes eluant) to provide the title compound. MS m/z 363.1 (M+1).
후처리
- customThe cooled reaction mixture
- extractionextracted with DCM
- dry with materialThe combined extracts were dried over sodium sulfate
- filtrationfiltered
- concentrationconcentrated
- customThe residue was chromatographed on silica gel (20-30% ethyl acetate in hexanes eluant)
출처 및 근거
- ORD 기록
- ord-07c72adc46f04d1a829582da38132b7b
- 출처 데이터셋
- uspto-grants-2015_11
- 특허 번호
- US09181238B2
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