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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 1407845
ノート
印刷プレビュー

反応式

HRID 1407845 の反応式
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
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 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

生成物 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}methanesulfonamide収率 38%

試薬・触媒・溶媒 1

HCID 6344
Dichloromethane
溶媒
2 回

実験手順

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′(1′H)-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).

後処理

  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)

出典と根拠

ORDレコード
ord-6fe74e04138546b6b241fe184b6c0e68
出典データセット
uspto-grants-2014_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08916580B2

反応ノート

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