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Water → N-[2-cyclopropyl-7-(1,5-dimethyl-6-oxopyridin-3-yl)-1-benzofuran-5-yl]ethanesulfonamide

HRID 575843
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HRID 575843 반응식
[CH:1]1([C:4]2[O:5][C:6]3[C:12](I)=[CH:11][C:10]([NH:14][S:15]([CH2:18][CH3:19])(=[O:17])=[O:16])=[CH:9][C:7]=3[CH:8]=2)[CH2:3][CH2:2]1.[CH3:20][N:21]1[CH:26]=[C:25](B2OC(C)(C)C(C)(C)O2)[CH:24]=[C:23]([CH3:36])[C:22]1=[O:37].C([O-])([O-])=O.[K+].[K+].O>CN(C=O)C.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH:1]1([C:4]2[O:5][C:6]3[C:12]([C:25]4[CH:24]=[C:23]([CH3:36])[C:22](=[O:37])[N:21]([CH3:20])[CH:26]=4)=[CH:11][C:10]([NH:14][S:15]([CH2:18][CH3:19])(=[O:17])=[O:16])=[CH:9][C:7]=3[CH:8]=2)[CH2:3][CH2:2]1
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참가 물질

7

반응물 4

HCID 962Water2회HCID 11430Potassium CarbonateHCID 712703091,3-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2-dihydropyridin-2-oneHCID 118022204N-(2-cyclopropyl-7-iodo-1-benzofuran-5-yl)ethanesulfonamide

생성물 1

HCID 118021844N-[2-cyclopropyl-7-(1,5-dimethyl-6-oxopyridin-3-yl)-1-benzofuran-5-yl]ethanesulfonamide수율 47%

시약·촉매·용매 2

HCID 44119782Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)촉매HCID 6228Dimethylformamide용매

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온도
100 °C

실험 절차

To a solution of the title compound from Step 3 (500 mg, 1.3 mmol) and 1,3-dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-one (380 mg, 1.5 mmol) in 10 mL of DMF was added K2CO3 (50 mg, 3.8 mmol), water (2 mL) and Pd(dppf)Cl2 (30 mg) under N2. The reaction mixture was heated to 100° C. for 1 h. The resulting mixture was poured into 100 mL of water and extracted with DCM (100 mL×2). The combined organic layers were dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel eluting with EtOAc to give the title compound (230 mg, 47% yield) as a white solid. 1H NMR (CDCl3, 400 MHz): δ 7.81 (d, J=3.6 Hz, 1H), 7.67-7.66 (m, 1H), 7.26 (t, J=1.2 Hz, 1H), 7.12 (d, J=3.2 Hz, 1H), 6.54 (br, 1H), 6.36 (d, J=0.8 Hz, 1H), 3.67 (s, 3H), 3.14-3.06 (m, 2H), 2.25 (s, 3H), 2.11-2.00 (m, 1H), 1.38-1.43 (m, 3H), 1.09-0.92 (m, 4H). LCMS: 387 (M+1)+.

후처리

  1. extractionextracted with DCM (100 mL×2)
  2. dry with materialThe combined organic layers were dried over anhydrous sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by column chromatography on silica gel eluting with EtOAc

출처 및 근거

ORD 기록
ord-20c6502bc54549ab80c3d4b466cfb4c5
출처 데이터셋
uspto-grants-2015_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09034900B2

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