{3-[3-(2-cyano-benzyl)-5-ethyl-4-oxo-4,5-dihydro-3H-imidazo[4,5-c]pyridin-2-yl]-cyclohexyl}-carbamic acid benzyl ester → 2-[2-(3-Amino-cyclohexyl)-5-ethyl-4-oxo-4,5-dihydro-imidazo[4,5-c]pyridin-3-ylmethyl]-benzonitrile

HRID 2244809ノート

反応式

HRID 2244809 の反応式
C(OC(=O)[NH:10][CH:11]1[CH2:16][CH2:15][CH2:14][CH:13]([C:17]2[N:28]([CH2:29][C:30]3[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=3[C:36]#[N:37])[C:20]3[C:21](=[O:27])[N:22]([CH2:25][CH3:26])[CH:23]=[CH:24][C:19]=3[N:18]=2)[CH2:12]1)C1C=CC=CC=1>[Pd].CCO.C1COCC1>[NH2:10][CH:11]1[CH2:16][CH2:15][CH2:14][CH:13]([C:17]2[N:28]([CH2:29][C:30]3[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=3[C:36]#[N:37])[C:20]3[C:21](=[O:27])[N:22]([CH2:25][CH3:26])[CH:23]=[CH:24][C:19]=3[N:18]=2)[CH2:12]1

参加物

4

反応物 1

HCID 58788436{3-[3-(2-cyano-benzyl)-5-ethyl-4-oxo-4,5-dihydro-3H-imidazo[4,5-c]pyridin-2-yl]-cyclohexyl}-carbamic acid benzyl ester

生成物 1

HCID 587884392-[2-(3-Amino-cyclohexyl)-5-ethyl-4-oxo-4,5-dihydro-imidazo[4,5-c]pyridin-3-ylmethyl]-benzonitrile収率 82%

試薬・触媒・溶媒 2

HCID 23938Palladium触媒HCID 21873804Tetrahydrofuran ethanol溶媒

実験手順

A solution of {3-[3-(2-cyano-benzyl)-5-ethyl-4-oxo-4,5-dihydro-3H-imidazo[4,5-c]pyridin-2-yl]-cyclohexyl}-carbamic acid benzyl ester (66 mg, 0.13 mmol) in 1:3 EtOH/THF (8 mL) was hydrogenated over 10% Pd/C (70 mg, 0.065 mmol) at room temperature. After 2 h, the catalyst was removed by filtration, rinsing with MeOH, and the filtrate was concentrated in vacuo. The crude product was purified by flash chromatography, eluting with 90:10:0.5 CH2Cl2/MeOH/NH4OH to give 2-[2-(3-amino-cyclohexyl)-5-ethyl-4-oxo-4,5-dihydro-imidazo[4,5-c]pyridin-3-ylmethyl]-benzonitrile (40 mg, 82% yield). The HCl salt was prepared by treating the amine in EtOAc with ethereal HCl (0.2 mL). 1H-NMR (CDCl3): δ 7.72 (dd, 1H, J=7.6, 1.2 Hz), 7.50 (t, 1H, J=7.6 Hz), 7.39 (t, 1H, J=7.6 Hz), 7.14 (d, 1H, J=7.2 Hz), 6.93 (d, 1H, J=7.6 Hz), 6.72 (dd, 1H, J=7.6, 2.0 Hz), 6.07 (m, 2H), 4.07 (m, 2H), 2.70 (m, 2H), 1.92 (m, 1H), 1.83 (m, 2H), 1.60 (m, 4H), 1.40 (m, 2H), 1.37 (dt, 3H, J=7.2, 3.2 Hz). MS: calculated for C22H25N5O+H 376.2; found: 376.2.

後処理

  1. customthe catalyst was removed by filtration
  2. washrinsing with MeOH
  3. concentrationthe filtrate was concentrated in vacuo
  4. customThe crude product was purified by flash chromatography
  5. washeluting with 90:10:0.5 CH2Cl2/MeOH/NH4OH

出典と根拠

ORDレコード
ord-33fbe2151b634dd1a120d04968e1d585
出典データセット
uspto-grants-2010_03
特許番号
US07678909B1

反応ノート

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