반응식
Br[C:2]1[CH:3]=[C:4]([CH:8]([O:19][CH:20]2[CH2:25][CH2:24][N:23]([CH3:26])[CH2:22][CH2:21]2)[C:9]2[NH:13][C:12]3[CH:14]=[CH:15][C:16]([F:18])=[CH:17][C:11]=3[N:10]=2)[CH:5]=[CH:6][CH:7]=1.CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2.[C:69]([O:73][C:74](=[O:79])[NH:75][CH2:76][CH2:77][SH:78])([CH3:72])([CH3:71])[CH3:70].C(N(C(C)C)CC)(C)C>C(=CC(C=CC1C=CC=CC=1)=O)C1C=CC=CC=1.C(=CC(C=CC1C=CC=CC=1)=O)C1C=CC=CC=1.[Pd].O1CCOCC1>[C:69]([O:73][C:74](=[O:79])[NH:75][CH2:76][CH2:77][S:78][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([CH:8]([C:9]2[NH:13][C:12]3[CH:14]=[CH:15][C:16]([F:18])=[CH:17][C:11]=3[N:10]=2)[O:19][CH:20]2[CH2:25][CH2:24][N:23]([CH3:26])[CH2:22][CH2:21]2)[CH:3]=1)([CH3:72])([CH3:70])[CH3:71]참가 물질
반응물 4
생성물 1
시약·촉매·용매 2
반응 조건
- 온도
- 120 °C
실험 절차
A screw-capped tube is charged with 2-[(3-bromophenyl)(1-methylpiperidin-4-yloxy)methyl]-5-fluoro-1H-benzimidazole (example 437D, 418 mg), palladium bis(dibenzylideneacetone) (30 mg), Xantphos (30 mg), (2-mercaptoethyl)carbamic acid tert-butyl ester (1 equivalent), diisopropylethylamine (180 μL) and 1,4-dioxane (6 mL). The tube is evacuated, filled with argon and sealed. After stirring at 120° C. overnight, the mixture is diluted with ethyl acetate and water and the aqueous phase is extracted with ethyl acetate. The pooled organic extracts are dried over magnesium sulfate and concentrated under reduced pressure. The residue is purified by chromatography (gradient dichloromethane/methanol from 98/2 to 95/5) to afford (2-{3-[(5-fluoro-1H-benzimidazol-2-yl)(1-methylpiperidin-4-yloxy)methyl]phenylsulfanyl}ethyl)carbamic acid tert-butyl ester. 1H NMR: 11.07 (sl, 1H), 7.69-7.59 (m, 1H), 7.39-7.36 (m, 1H), 7.30-7.15 (m, 2H), 7.04-6.91 (m, 2H), 5.83 (s, 1H), 5.30 (sl, 1H), 4.20 (s, 2H), 3.65-3.40 (m, 3H), 3.30-3.05 (m, 2H), 2.80-2.65 (m, 2H), 2.27 (s, 3H), 2.25-1.75 (m, 6H), 1.55 (s, 9H).
후처리
- customThe tube is evacuated
- additionfilled with argon
- customsealed
- additionthe mixture is diluted with ethyl acetate and water
- extractionthe aqueous phase is extracted with ethyl acetate
- dry with materialThe pooled organic extracts are dried over magnesium sulfate
- concentrationconcentrated under reduced pressure
- customThe residue is purified by chromatography (gradient dichloromethane/methanol from 98/2 to 95/5)
출처 및 근거
- ORD 기록
- ord-545b275686da4b0985ff43a240fda21a
- 출처 데이터셋
- uspto-grants-2015_05
- 특허 번호
- US09029357B2
연결된 노트
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