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1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → (S)-3-cyclohexyl-2-[4-(2,6-difluoro-phenoxy)-2-oxo-2,5-dihydro-pyrrol-1-yl]-N-[1-(2-hydroxy-2-methyl-propyl)-1H-pyrazol-3-yl]-propionamide

HRID 18975
ノート
印刷プレビュー

反応式

HRID 18975 の反応式
[CH:1]1([CH2:7][C@H:8]([N:12]2[CH2:16][C:15]([O:17][C:18]3[C:23]([F:24])=[CH:22][CH:21]=[CH:20][C:19]=3[F:25])=[CH:14][C:13]2=[O:26])[C:9]([OH:11])=O)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.CN(C)CCCN=C=NCC.ON1C2C=CC=CC=2N=N1.[NH2:48][C:49]1[CH:53]=[CH:52][N:51]([CH2:54][C:55]([CH3:58])([OH:57])[CH3:56])[N:50]=1>ClCCl>[CH:1]1([CH2:7][C@H:8]([N:12]2[CH2:16][C:15]([O:17][C:18]3[C:19]([F:25])=[CH:20][CH:21]=[CH:22][C:23]=3[F:24])=[CH:14][C:13]2=[O:26])[C:9]([NH:48][C:49]2[CH:53]=[CH:52][N:51]([CH2:54][C:55]([OH:57])([CH3:56])[CH3:58])[N:50]=2)=[O:11])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 593449381-(3-amino-1H-pyrazol-1-yl)-2-methylpropan-2-olHCID 66894777(S)-3-cyclohexyl-2-[4-(2,6-difluoro-phenoxy)-2-oxo-2,5-dihydro-pyrrol-1-yl]-propionic acid

生成物 1

HCID 44253752(S)-3-cyclohexyl-2-[4-(2,6-difluoro-phenoxy)-2-oxo-2,5-dihydro-pyrrol-1-yl]-N-[1-(2-hydroxy-2-methyl-propyl)-1H-pyrazol-3-yl]-propionamide
収率 72%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

反応条件

温度
25 °C

実験手順

A solution of (S)-3-cyclohexyl-2-[4-(2,6-difluoro-phenoxy)-2-oxo-2,5-dihydro-pyrrol-1-yl]-propionic acid (200 mg, 0.55 mmol) in dichloromethane (10 mL) was treated with 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide (86 mg, 0.55 mmol) and 1-hydroxybenzotriazole (80 mg, 0.58 mmol). The reaction mixture was stirred at 25° C. for 2 h followed by the addition of 1-(3-amino-pyrazol-1-yl)-2-methyl-propan-2-ol (prepared in U.S. Pat. Appl. US2008021032 Example 80, 95 mg, 0.60 mmol). The reaction mixture was stirred for 18 h at 25° C., under nitrogen. The reaction mixture was diluted with dichloromethane, washed with 2N aqueous hydrochloric acid, saturated sodium bicarbonate solution, a saturated sodium chloride solution and dried over magnesium sulfate. The organic layer was concentrated, and the crude product was purified by ISCO flash chromatography (Teledyne Isco RediSep Flash Column 12 g; 0% to 100% ethyl acetate/hexanes) to afford (S)-3-cyclohexyl-2-[4-(2,6-difluoro-phenoxy)-2-oxo-2,5-dihydro-pyrrol-1-yl]-N-[1-(2-hydroxy-2-methyl-propyl)-1H-pyrazol-3-yl]-propionamide (197 mg, 72%) as a white solid: LR-ES-MS m/z calculated for C26H32F2N4O4 [M]+ 502, observed [M+H]+ 503; 1H NMR (300 MHz, DMSO-d6) δ ppm 0.77-1.35 (m, 6H) 1.04 (s, 3H) 1.06 (s, 3H) 1.48-1.85 (m, 7H) 3.89 (s, 2H) 4.26 (d, J=18.8 Hz, 1H) 4.64 (d, J=18.8 Hz, 1H) 4.68 (s, 1H) 4.90 (dd, J=10.7, 4.7 Hz, 1H) 5.03 (s, 1H) 6.44 (d, J=2.1 Hz, 1H) 7.20-7.50 (m, 3H) 7.53 (d, J=2.1 Hz, 1H) 10.80 (s, 1H).

後処理

  1. stirringThe reaction mixture was stirred for 18 h at 25° C., under nitrogen
  2. washwashed with 2N aqueous hydrochloric acid, saturated sodium bicarbonate solution
  3. dry with materiala saturated sodium chloride solution and dried over magnesium sulfate
  4. concentrationThe organic layer was concentrated
  5. customthe crude product was purified by ISCO flash chromatography (Teledyne Isco RediSep Flash Column 12 g; 0% to 100% ethyl acetate/hexanes)

出典と根拠

ORDレコード
ord-fe7d44acd48a474dade2e95e383c1534
出典データセット
uspto-grants-2010_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07741327B2

反応ノート

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