Sodium Carbonate → HCID 178525143、化合物

HRID 1711396ノート

反応式

HRID 1711396 の反応式
[CH2:1]([O:8][C:9]([N:11]1[CH2:15][CH2:14][CH:13]([O:16][C:17]2[CH:22]=[CH:21][C:20]([NH2:23])=[C:19]([CH2:24][S:25]([C:28]3[C:37]4[C:32](=[CH:33][CH:34]=[CH:35][CH:36]=4)[CH:31]=[CH:30][CH:29]=3)(=[O:27])=[O:26])[CH:18]=2)[CH2:12]1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[N:38]([O-])=O.[Na+].C(=O)([O-])[O-].[Na+].[Na+]>C(O)C.Cl.O>[CH2:1]([O:8][C:9]([N:11]1[CH2:15][CH2:14][CH:13]([O:16][C:17]2[CH:18]=[C:19]3[C:20](=[CH:21][CH:22]=2)[NH:23][N:38]=[C:24]3[S:25]([C:28]2[C:37]3[C:32](=[CH:33][CH:34]=[CH:35][CH:36]=3)[CH:31]=[CH:30][CH:29]=2)(=[O:27])=[O:26])[CH2:12]1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

7

反応物 3

HCID 10340Sodium CarbonateHCID 23668193Sodium NitriteHCID 58828620HCID 58828620、化合物

生成物 1

HCID 178525143HCID 178525143、化合物収率 70.1%

試薬・触媒・溶媒 3

HCID 313Hydrochloric Acid溶媒HCID 702Ethanol溶媒HCID 962Water溶媒

実験手順

A suspension of 3-[4-amino-3-(naphthalene-1-sulfonylmethyl)-phenoxy]-pyrrolidine-1-carboxylic acid benzyl ester (2.36 g, 4.57 mmol) in ethanol and 1.0 N hydrochloric acid (85 mL) was heated to aid dissolution. The reaction mixture was treated slowly with sodium nitrite (0.549 g, 7.96 mmol) in water, stirred at ambient temperatures for 50 minutes, basified with solid sodium carbonate, stirred at ambient temperatures for 30 minutes and concentrated in vacuo. The resultant residue was partitioned in ethyl acetate and brine. The organic phase was dried over anhydrous magnesium sulfate and concentrated in vacuo. This residue was purified twice by flash chromatography with 2% methanol in chloroform and with 1.5-10% methanol in chloroform to afford 3-[3-(naphthalene-1-sulfonyl)-1H-indazol-5-yloxy]-pyrrolidine-1-carboxylic acid benzyl ester as a buff-colored foam, 1.69 g (70.1% yield), Mass spectrum (+EI, [M+H]+) m/z 528. 1HNMR (500 MHz, DMSO-d6): δ14.09 (s, 1H), 8.72-8.75 (m, 1H), 8.55 (d, 1H, J=7.44 Hz), 8.17-8.27 (m, 1H), 7.98-8.03 (m, 1H), 7.52-7.74 (m, 4H), 7.19-7.34 (m, 6H), 7.06 (d, 1H, J=8.78 Hz), 4.99-5.09 (m, 3H), 3.61-3.70 (m, 1H), 3.34-3.55 (m, 3H), 2.11-2.28 (m, 1H), 1.99-2.07 ppm (m, 1H).

後処理

  1. temperaturewas heated
  2. dissolutiondissolution
  3. stirringstirred at ambient temperatures for 30 minutes
  4. concentrationconcentrated in vacuo
  5. customThe resultant residue was partitioned in ethyl acetate
  6. dry with materialThe organic phase was dried over anhydrous magnesium sulfate
  7. concentrationconcentrated in vacuo
  8. customThis residue was purified twice by flash chromatography with 2% methanol in chloroform and with 1.5-10% methanol in chloroform

出典と根拠

ORDレコード
ord-f651817187d747b893b8eafc52185d34
出典データセット
uspto-grants-2010_09
特許番号
US07790751B2

反応ノート

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