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Pyridine → N-{2-[(2'-oxo-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3'-indol]-1'(2'H)-yl)methyl]pyridine-3-yl}methanesulfonamide

HRID 1965711
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반응식

HRID 1965711 반응식
Br.[NH2:2][C:3]1[C:4]([CH2:9][N:10]2[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=3)[C:12]3([C:30]4[C:21](=[CH:22][C:23]5[O:28][CH2:27][CH2:26][O:25][C:24]=5[CH:29]=4)[O:20][CH2:19]3)[C:11]2=[O:31])=[N:5][CH:6]=[CH:7][CH:8]=1.[CH3:32][S:33](Cl)(=[O:35])=[O:34].N1C=CC=CC=1>ClCCl>[O:31]=[C:11]1[C:12]2([C:30]3[C:21](=[CH:22][C:23]4[O:28][CH2:27][CH2:26][O:25][C:24]=4[CH:29]=3)[O:20][CH2:19]2)[C:13]2[C:18](=[CH:17][CH:16]=[CH:15][CH:14]=2)[N:10]1[CH2:9][C:4]1[C:3]([NH:2][S:33]([CH3:32])(=[O:35])=[O:34])=[CH:8][CH:7]=[CH:6][N:5]=1
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참가 물질

5

반응물 3

HCID 1049PyridineHCID 31297Methanesulfonyl chlorideHCID 673568561'-[(3-aminopyridin-2-yl)methyl]-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3'-indol]-2'(1'H)-one hydrobromide

생성물 1

HCID 59352518N-{2-[(2'-oxo-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3'-indol]-1'(2'H)-yl)methyl]pyridine-3-yl}methanesulfonamide수율 38%

시약·촉매·용매 1

HCID 6344
Dichloromethane
용매
2회

실험 절차

A 50 mL round-bottom flask was charged with 1′-[(3-aminopyridin-2-yl)methyl]-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3′-indol]-2′(1H)-one hydrobromide (0.56 g, 1.0 mmol), methanesulfonyl chloride (0.12 g, 1.1 mmol), pyridine (0.25 g, 3.0 mmol) and dichloromethane (20 mL). The reaction mixture was stirred under nitrogen at ambient temperature for 16 h and diluted with dichloromethane (50 mL). The organic phase was washed with water (2×50 mL), dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo. The residue was purified by column chromatography and eluted with a 0% to 100% gradient of ethyl acetate in dichloromethane, followed by recrystallization from methanol (10 mL) to afford N-{2-[(2′-oxo-2,3-dihydrospiro[furo[2,3-g][1,4]benzodioxine-8,3′-indol]-1′(2′H)-yl)methyl]pyridine-3-yl}methanesulfonamide (0.18 g, 38%) as an off-white solid: 1H NMR (300 MHz, DMSO-d6) δ 9.64 (s, 1H), 8.27 (dd, J=4.6, 1.2 Hz, 1H), 7.78 (dd, J=8.0, 1.4 Hz, 1H), 7.34 (dd, J=8.0, 4.7 Hz, 1H), 7.21-7.10 (m, 2H), 6.96 (t, J=7.4 Hz, 1H), 6.77 (d, J=7.8 Hz, 1H), 6.48 (s, 1H), 6.46 (s, 1H), 5.17 (ABq, 2H), 4.73 (ABq, 2H), 4.18-4.05 (m, 4H), 3.14 (s, 3H); 13C NMR (75 MHz, DMSO-d6) δ 177.6, 154.9, 151.0, 147.1, 144.5, 143.2, 138.1, 134.5, 132.6, 132.2, 132.1, 129.0, 123.8, 123.2, 122.2, 112.3, 109.4, 99.0, 79.6, 64.6, 64.1, 57.8, 41.8, 40.6; MS (ES+) m/z 479.9 (M+1).

후처리

  1. washThe organic phase was washed with water (2×50 mL)
  2. dry with materialdried over anhydrous magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by column chromatography
  6. washeluted with a 0% to 100% gradient of ethyl acetate in dichloromethane
  7. customfollowed by recrystallization from methanol (10 mL)

출처 및 근거

ORD 기록
ord-5987f99a2b3845a4b6a2e1c4e491394b
출처 데이터셋
uspto-grants-2013_04
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08415370B2

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