Potassium Carbonate → 2-Methoxy-6-(6-methoxy-4-((2-((2-methoxyethoxy)methyl)thiazol-4-yl)methoxy)benzofuran-2-yl)imidazo[2,1-b][1,3,4]thiadiazole

HRID 625104

反応式

HRID 625104 の反応式
[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[O:9][C:8]([C:10]3[N:11]=[C:12]4[N:16]([CH:17]=3)[N:15]=[C:14]([O:18][CH3:19])[S:13]4)=[CH:7][C:6]2=[C:20]([OH:22])[CH:21]=1.Br[CH2:24][C:25]1[N:26]=[C:27]([CH2:30][O:31][CH2:32][CH2:33][O:34][CH3:35])[S:28][CH:29]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C.ClCCl>[CH3:19][O:18][C:14]1[S:13][C:12]2=[N:11][C:10]([C:8]3[O:9][C:5]4[CH:4]=[C:3]([O:2][CH3:1])[CH:21]=[C:20]([O:22][CH2:24][C:25]5[N:26]=[C:27]([CH2:30][O:31][CH2:32][CH2:33][O:34][CH3:35])[S:28][CH:29]=5)[C:6]=4[CH:7]=3)=[CH:17][N:16]2[N:15]=1

参加物

6

反応物 3

HCID 11430Potassium CarbonateHCID 722017096-Methoxy-2-(2-methoxyimidazo[2,1-b][1,3,4]thiadiazol-6-yl)benzofuran-4-olHCID 867008934-(Bromomethyl)-2-((2-methoxyethoxy)methyl)thiazole

生成物 1

HCID 721933302-Methoxy-6-(6-methoxy-4-((2-((2-methoxyethoxy)methyl)thiazol-4-yl)methoxy)benzofuran-2-yl)imidazo[2,1-b][1,3,4]thiadiazole

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide溶媒HCID 6344Dichloromethane溶媒

実験手順

A suspension of 6-methoxy-2-(2-methoxyimidazo[2,1-b][1,3,4]thiadiazol-6-yl)benzofuran-4-ol (Example 1H, 0.10 g, 0.315 mmol) and 4-(bromomethyl)-2-((2-methoxyethoxy)methyl)thiazole (Example 6E, 0.10 g, 0.376 mmol) in DMF (5 mL) was purged under vacuum and nitrogen for 10 minutes. The mixture was then treated with potassium carbonate (0.10 g, 0.724 mmol) and the reaction was stirred at RT for 2.5 hours. The reaction was then diluted with dichloromethane, washed with water (1×), brine (1×), dried over anhydrous magnesium sulfate, filtered and concentrated. The residue was purified by silica gel chromatography (2.5×10 cm, 50% ethyl acetate/CH2Cl2) to give the title material which was crystallized in ethyl acetate and provided the desired title material (0.055 g, 35%) along with non-crystallized material (9 mgs, 6%). LC (Method F): 2.476 min. HRMS (ESI) calcd for C22H23N4O6S2 [M+H]+ m/z 503.1054, found 503.1066. 1H NMR (CDCl3, 400 MHz) δ ppm: 7.82 (s, 1H), 7.35 (s, 1H), 7.05 (s, 1H), 6.68 (broad s, 1H), 6.39 (d, J=1.9 Hz, 1H), 5.28 (s, 2H), 4.86 (s, 2H), 4.19 (s, 3H), 3.82 (s, 3H), 3.74-3.77 (m, 2H), 3.58-3.61 (m, 2H), 3.39 (s, 3H).

後処理

  1. customwas purged under vacuum and nitrogen for 10 minutes
  2. washwashed with water (1×), brine (1×)
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe residue was purified by silica gel chromatography (2.5×10 cm, 50% ethyl acetate/CH2Cl2)

出典と根拠

ORDレコード
ord-625b8f612f6d479db2d2092472e54a5f
出典データセット
uspto-grants-2016_04
特許番号
US09303065B2

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