Sodium Dithionite → HCID 178436052、化合物

HRID 416799ノート

反応式

HRID 416799 の反応式
[Br:1][C:2]1[C:3]([N:12]2[CH2:17][CH2:16][N:15]([CH:18]([C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=3)[CH3:19])[CH2:14][CH2:13]2)=[C:4]([N+:9]([O-])=O)[C:5]([NH2:8])=[N:6][CH:7]=1.[N:26]1([CH2:32][C:33]2[CH:40]=[CH:39][C:36]([CH:37]=O)=[CH:35][CH:34]=2)[CH2:31][CH2:30][O:29][CH2:28][CH2:27]1.[O-]S(S([O-])=O)=O.[Na+].[Na+]>CCO>[Br:1][C:2]1[C:3]([N:12]2[CH2:17][CH2:16][N:15]([CH:18]([C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=3)[CH3:19])[CH2:14][CH2:13]2)=[C:4]2[N:9]=[C:37]([C:36]3[CH:35]=[CH:34][C:33]([CH2:32][N:26]4[CH2:31][CH2:30][O:29][CH2:28][CH2:27]4)=[CH:40][CH:39]=3)[NH:8][C:5]2=[N:6][CH:7]=1

参加物

5

反応物 3

HCID 24489Sodium DithioniteHCID 27954984-[(Morpholin-4-yl)methyl]benzaldehydeHCID 57897312HCID 57897312、化合物

生成物 1

HCID 178436052HCID 178436052、化合物

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

反応条件

温度
70 °C

実験手順

To a mixture of 5-bromo-3-nitro-4-[4-(1-phenyl-ethyl)-piperazin-1-yl]-pyridin-2-ylamine (0.060 g, 0.15 mmol) and EtOH (6.0 ml) was added 4-morpholin-4-ylmethyl-benzaldehyde (0.039 g, 0.19 mmol) followed by a freshly prepared aqueous solution of Na2S2O4 (1M; 0.60 ml, 0.60 mmol). The reaction mixture was stirred at 70° C. for 5 h, then allowed to cool to room temperature, and concentrated in vacuo. The residue was absorbed on silica gel, the free-running powder was placed on a 10 g isolute silica column and elution with a gradient of methanol (0 to 9%) in ethyl acetate/dichloromethane (v:v; 1:1) afforded a yellow solid which was triturated with diethyl ether. The precipitate was collected by filtration, successively washed with diethyl ether, water, diethyl ether, and dried (0.002 g, 3%). 1H-NMR (500 MHz, DMSO-d6) 1.37 (d, J=6.6 Hz, 3H, CHCH3), 2.38 (br s, 4H) and 3.59 (t, J=4.6 Hz, 4H) (morpholine N(CH2)2 and morpholine O(CH2)2), 2.54 (br s, 2H), 2.63 (br s, 2H) and 3.65 (br s, 4H) piperazine N(CH2)2), 3.50 (q, 1H, CHCH3), 3.57 (s, 2H, C6H4CH2), 7.26 (m, 1H) and 7.37 (m, 4H) (PhH), 7.47 (d, J=8.9 Hz, 2H) and 8.13 (d, J=8.2 Hz, 2H) (3,5-C6H4— and 2,6-C6H4—), 8.22 (s, 1H, imidazo[4,5-b]pyridine 5-H), 13.45 (br s, 1H, imidazo[4,5-b]pyridine N—H);

後処理

  1. temperatureto cool to room temperature
  2. concentrationconcentrated in vacuo
  3. customThe residue was absorbed on silica gel
  4. washthe free-running powder was placed on a 10 g isolute silica column and elution with a gradient of methanol (0 to 9%) in ethyl acetate/dichloromethane (v:v; 1:1)
  5. customafforded a yellow solid which
  6. customwas triturated with diethyl ether
  7. filtrationThe precipitate was collected by filtration
  8. washsuccessively washed with diethyl ether, water, diethyl ether
  9. customdried (0.002 g, 3%)

出典と根拠

ORDレコード
ord-6985305c60c149c8ae2199afcf73b104
出典データセット
uspto-grants-2012_01
特許番号
US08088761B2

反応ノート

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