Felbinac → 2-(1,1'-biphenyl-4-yl)-N-[(1R)-1-(5-methoxypyridin-2-yl)ethyl]acetamide

HRID 254700

反応式

HRID 254700 の反応式
[C:1]1([C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=2)[CH:6]=[CH:5][C:4]([CH2:7][C:8]([OH:10])=O)=[CH:3][CH:2]=1.Cl.[CH3:18][O:19][C:20]1[CH:21]=[CH:22][C:23]([C@H:26]([NH2:28])[CH3:27])=[N:24][CH:25]=1.ON1C2N=CC=CC=2N=N1.C(N(C(C)C)CC)(C)C.Cl.CN(C)CCCN=C=NCC>CN(C=O)C>[C:1]1([C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=2)[CH:2]=[CH:3][C:4]([CH2:7][C:8]([NH:28][C@@H:26]([C:23]2[CH:22]=[CH:21][C:20]([O:19][CH3:18])=[CH:25][N:24]=2)[CH3:27])=[O:10])=[CH:5][CH:6]=1

参加物

7

反応物 5

HCID 3332FelbinacHCID 81531DiisopropylethylamineHCID 181649HOAtHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 66892986(R)-1-(5-Methoxypyridin-2-yl)ethanamine hydrochloride

生成物 1

HCID 247655742-(1,1'-biphenyl-4-yl)-N-[(1R)-1-(5-methoxypyridin-2-yl)ethyl]acetamide

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

To a mixture of 4-biphenylacetic acid (2.00 g, 9.42 mmol), (1R)-1-(5-methoxypyridin-2-yl)ethanamine hydrochloride (1.96 g, 10.36 mmol), 1-hydroxy-7-azabenzotriazole (1.70 g, 12.49 mmol) and diisopropyl-ethyl amine (5.20 ml, 31.46 mmol) in DMF (55 ml) was added 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (2.40 g, 12.52 mmol) at room temperature. The reaction was stirred for 18 hours and then washed with saturated sodium bicarbonate solution and brine. Organics were extracted with EtOAc, dried over Na2SO4, filtered and concentrated in vacuo. Purification by normal phase chromatography (0-80% EtOAc/Hex) afforded 2-(1,1′-biphenyl-4-yl)-N-[(1R)-1-(5-methoxypyridin-2-yl)ethyl]acetamide as a yellow solid. 1H NMR (CDCl3, 400 MHz) δ 8.16 (s, 1H); 7.58 (m, 4H); 7.44 (m, 2H); 7.34 (m, 3H); 7.14 (m, 2H); 6.78 (d, J=6.80 Hz, 1H); 5.10 (m, 1H); 3.83 (s, 3H); 3.63 (s, 2H); 1.41 (d, J=6.80 Hz, 3H). MS (Electrospray): m/z 347.1 (M+H).

後処理

  1. washwashed with saturated sodium bicarbonate solution and brine
  2. extractionOrganics were extracted with EtOAc
  3. dry with materialdried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customPurification by normal phase chromatography (0-80% EtOAc/Hex)

出典と根拠

ORDレコード
ord-12b86e390993471f820b89ceb7aeb876
出典データセット
uspto-grants-2011_01
特許番号
US07875636B2

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