1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → N-[(R)-1-[3-(1-tert-butoxycarbonyl-4-piperidyl)-(E)-acryloyl]-3-piperidylcarbonyl]-3(R)-(3,4-dimethoxyphenethyl)-beta-alanine methyl ester

HRID 1934393ノート

反応式

HRID 1934393 の反応式
[CH3:1][O:2][C:3](=[O:19])[CH2:4][C@@H:5]([CH2:7][CH2:8][C:9]1[CH:14]=[CH:13][C:12]([O:15][CH3:16])=[C:11]([O:17][CH3:18])[CH:10]=1)[NH2:6].[C:20]([O:24][C:25]([N:27]1[CH2:32][CH2:31][CH:30](/[CH:33]=[CH:34]/[C:35]([N:37]2[CH2:42][CH2:41][CH2:40][C@@H:39]([C:43](O)=[O:44])[CH2:38]2)=[O:36])[CH2:29][CH2:28]1)=[O:26])([CH3:23])([CH3:22])[CH3:21].ON1C2C=CC=CC=2N=N1.C(N=C=NCCCN(C)C)C>CN(C)C=O.O>[CH3:1][O:2][C:3](=[O:19])[CH2:4][C@@H:5]([CH2:7][CH2:8][C:9]1[CH:14]=[CH:13][C:12]([O:15][CH3:16])=[C:11]([O:17][CH3:18])[CH:10]=1)[NH:6][C:43]([C@@H:39]1[CH2:40][CH2:41][CH2:42][N:37]([C:35](=[O:36])/[CH:34]=[CH:33]/[CH:30]2[CH2:31][CH2:32][N:27]([C:25]([O:24][C:20]([CH3:22])([CH3:21])[CH3:23])=[O:26])[CH2:28][CH2:29]2)[CH2:38]1)=[O:44]

参加物

7

反応物 4

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 69817990(R)-1-[3-(1-tert-butoxycarbonyl-4-piperidyl)-(E)-acryloyl]-3-piperidinecarboxylic acidHCID 867580313(R)-(3,4-dimethoxyphenethyl)-beta-alanine methyl ester

生成物 1

HCID 86758030N-[(R)-1-[3-(1-tert-butoxycarbonyl-4-piperidyl)-(E)-acryloyl]-3-piperidylcarbonyl]-3(R)-(3,4-dimethoxyphenethyl)-beta-alanine methyl ester収率 91.5%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

実験手順

To a mixture of 3(R)-(3,4-dimethoxyphenethyl)-β-alanine methyl ester (0.87 g), (R)-1-[3-(1-tert-butoxycarbonyl-4-piperidyl)-(E)-acryloyl]-3-piperidinecarboxylic acid (1.19 g) and 1-hydroxybenztriazole (0.44 g) in dimethylformamide (9 ml) was added 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (0.59 ml) at 0° C. The reaction mixture was stirred overnight at room temperature, and then poured into water. The whole was extracted with ethyl acetate, washed with aqueous saturated NaHCO3, water, and brine, dried over MgSO4, and evaporated in vacuo, subsequently. The residue was purified by column chromatography on silica gel eluting with ethyl acetate: n-hexane=(5:1) to give N-[(R)-1-[3-(1-tert-butoxycarbonyl-4-piperidyl)-(E)-acryloyl]-3-piperidylcarbonyl]-3(R)-(3,4-dimethoxyphenethyl)-β-alanine methyl ester as a colorless oil (1.83 g).

後処理

  1. extractionThe whole was extracted with ethyl acetate
  2. washwashed with aqueous saturated NaHCO3, water, and brine
  3. dry with materialdried over MgSO4
  4. customevaporated in vacuo
  5. customThe residue was purified by column chromatography on silica gel eluting with ethyl acetate

出典と根拠

ORDレコード
ord-60d4fa9d85a64369a5c1d2c922d42e41
出典データセット
uspto-grants-2002_05
特許番号
US06384028B1

反応ノート

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