Triethylamine → (2,4-Bis-benzyloxy-5-isopropenyl-phenyl)-[5-(4-hydroxy-1-methyl-piperidin-4-yl)-1,3-dihydro-isoindol-2-yl]-methanone

HRID 334971

反応式

HRID 334971 の反応式
[CH2:1]([O:8][C:9]1[CH:17]=[C:16]([O:18][CH2:19][C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[C:15]([C:26]([CH3:28])=[CH2:27])=[CH:14][C:10]=1[C:11](O)=[O:12])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl.C(N=C=N)C.ON1C2C=CC=CC=2N=N1.Cl.Cl.[CH2:47]1[C:55]2[C:50](=[CH:51][C:52]([C:56]3([OH:63])[CH2:61][CH2:60][N:59]([CH3:62])[CH2:58][CH2:57]3)=[CH:53][CH:54]=2)[CH2:49][NH:48]1.C(N(CC)CC)C>CN(C=O)C>[CH2:1]([O:8][C:9]1[CH:17]=[C:16]([O:18][CH2:19][C:20]2[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=2)[C:15]([C:26]([CH3:28])=[CH2:27])=[CH:14][C:10]=1[C:11]([N:48]1[CH2:49][C:50]2[C:55](=[CH:54][CH:53]=[C:52]([C:56]3([OH:63])[CH2:61][CH2:60][N:59]([CH3:62])[CH2:58][CH2:57]3)[CH:51]=2)[CH2:47]1)=[O:12])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

7

反応物 5

HCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 21883477Ethylcarbodiimide hydrochlorideHCID 498640162,4-Bis(benzyloxy)-5-isopropenylbenzoic acidHCID 666725264-(2,3-dihydro-1H-isoindol-5-yl)-1-methyl-piperidin-4-ol dihydrochloride

生成物 1

HCID 46915491(2,4-Bis-benzyloxy-5-isopropenyl-phenyl)-[5-(4-hydroxy-1-methyl-piperidin-4-yl)-1,3-dihydro-isoindol-2-yl]-methanone収率 69%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒2 回

実験手順

2,4-Bis-benzyloxy-5-isopropenyl-benzoic acid (1.65 g, 4.4 mmol), 1-[3-(dimethylamino)propyl)]-3-ethylcarbodiimide hydrochloride (843 mg, 4.4 mmol) and 1-hydroxybenztriazole (595 mg, 4.4 mmol) were dissolved in DMF (20 mL). After 35 minutes, the solution was added to a suspension of 4-(2,3-dihydro-1H-isoindol-5-yl)-1-methyl-piperidin-4-ol dihydrochloride (1.22 g, 4.0 mmol) in DMF (5 mL) and triethylamine (1.4 mL, 10 mmol). The mixture was stirred for 3 hours then concentrated in vacuo. The residue was taken up in ethyl acetate and washed with a mixture of water (adjusted to pH 14 with 2N sodium hydroxide solution) and brine. The aqueous phase was extracted twice further with ethyl acetate then the combined organic extracts were washed with sodium bicarbonate solution and brine, dried (MgSO4) and concentrated. The crude product was purified by flash chromatography (gradient elution with 2M methanolic ammonia/dichloromethane, 2% to 10%) to afford the title compound as a brown foam (1.62 g, 69%). 1H NMR (methanol-d4) 7.51-7.14 (14H, m), 6.85 (0.5H, s), 6.84 (0.5H, s), 5.16 (2H, s), 5.15 (2H, s), 5.10-5.08 (1H, m), 5.07-5.05 (1H, m), 4.87 (1H, s), 4.86 (1H, s), 4.61 (2H, br.s), 2.78-2.70 (2H, m), 2.57 (1H, td), 2.54 (1H, td), 2.36 (1.5H, s), 2.34 (1.5H, s), 2.16-2.05 (5H, m including 2.09 (3H, s)), 1.78-1.70 (2H, m). MS: [M+H]+ 589.

後処理

  1. concentrationthen concentrated in vacuo
  2. washwashed with a mixture of water (adjusted to pH 14 with 2N sodium hydroxide solution) and brine
  3. extractionThe aqueous phase was extracted twice further with ethyl acetate
  4. washthe combined organic extracts were washed with sodium bicarbonate solution and brine
  5. dry with materialdried (MgSO4)
  6. concentrationconcentrated
  7. customThe crude product was purified by flash chromatography (gradient elution with 2M methanolic ammonia/dichloromethane, 2% to 10%)

出典と根拠

ORDレコード
ord-c9328a4476254637a2603655230fdec3
出典データセット
uspto-grants-2014_11
特許番号
US08883790B2

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