Diisopropylethylamine → 1-(1-Ethyl-propyl)-2-thiophen-2-ylmethyl-1H-benzoimidazole-5-carboxylic acid ((S)-1-cyanomethyl-3-methyl-butyl)-amide

HRID 1750173ノート

反応式

HRID 1750173 の反応式
[CH2:1]([CH:3]([N:6]1[C:10]2[CH:11]=[CH:12][C:13]([C:15]([OH:17])=O)=[CH:14][C:9]=2[N:8]=[C:7]1[CH2:18][C:19]1[S:20][CH:21]=[CH:22][CH:23]=1)[CH2:4][CH3:5])[CH3:2].C1C=NC2N(O)N=NC=2C=1.CCN(C(C)C)C(C)C.Cl.[NH2:44][C@@H:45]([CH2:49][CH:50]([CH3:52])[CH3:51])[CH2:46][C:47]#[N:48].S([O-])(O)(=O)=O.[Na+]>CN(C=O)C.O.C(Cl)CCl>[C:47]([CH2:46][C@@H:45]([NH:44][C:15]([C:13]1[CH:12]=[CH:11][C:10]2[N:6]([CH:3]([CH2:4][CH3:5])[CH2:1][CH3:2])[C:7]([CH2:18][C:19]3[S:20][CH:21]=[CH:22][CH:23]=3)=[N:8][C:9]=2[CH:14]=1)=[O:17])[CH2:49][CH:50]([CH3:52])[CH3:51])#[N:48]

参加物

9

反応物 5

HCID 81531Diisopropylethylamine2 回HCID 181649HOAtHCID 516919Sodium BisulfateHCID 867143731-(1-ethyl-propyl)-2-thiophen-2-ylmethyl-1H-benzoimidazole-5-carboxylic acidHCID 86714386(S)-3-Amino-5-methyl-hexanenitrile-hydrochloride

生成物 1

HCID 867143851-(1-Ethyl-propyl)-2-thiophen-2-ylmethyl-1H-benzoimidazole-5-carboxylic acid ((S)-1-cyanomethyl-3-methyl-butyl)-amide収率 90%

試薬・触媒・溶媒 3

HCID 111,2-Dichloroethane溶媒HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

実験手順

To a solution of 4.93 g of 1-(1-ethyl-propyl)-2-thiophen-2-ylmethyl-1H-benzoimidazole-5-carboxylic acid in 50 ml of dry DMF 2.04 g of HOAT, 3.45 g of EDC and 4.35 ml of DIPEA were added at 0° C. After 30 min 3.29 g of (S)-3-Amino-5-methyl-hexanenitrile-hydrochloride and 4.35 ml of DIPEA were added and the reaction was stirred at rt for 4 h. The reaction was then poured into water and the pH was adjusted to 3 by the addition of 2 M aqueous sodium hydrogensulphate solution. The reaction was extracted with ethyl acetate three times. The combined organic phases were washed with saturated aqueous sodium bicarbonate solution and brine, dried over magnesium sulphate and concentrated. 5.90 g (90%) of 1-(1-Ethyl-propyl)-2-thiophen-2-ylmethyl-1H-benzoimidazole-5-carboxylic acid ((S)-1-cyanomethyl-3-methyl-butyl)-amide were obtained.

後処理

  1. extractionThe reaction was extracted with ethyl acetate three times
  2. washThe combined organic phases were washed with saturated aqueous sodium bicarbonate solution and brine
  3. dry with materialdried over magnesium sulphate
  4. concentrationconcentrated

出典と根拠

ORDレコード
ord-5b1693a13d9a454196d244c133826784
出典データセット
uspto-grants-2015_10
特許番号
US09156796B2

反応ノート

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