Sodium hydride → N,N-dibenzyl-3-methyl-4-(3-((2-(trimethylsilyl)ethoxy)methyl)-3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazin-8-yl)cyclopentanamine

HRID 1969835ノート

反応式

HRID 1969835 の反応式
[H-].[Na+].[CH2:3]([N:10]([CH2:29][C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1)[CH:11]1[CH2:15][CH:14]([CH3:16])[CH:13]([C:17]2[N:21]3[C:22]4[CH:28]=[CH:27][NH:26][C:23]=4[N:24]=[CH:25][C:20]3=[N:19][CH:18]=2)[CH2:12]1)[C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1.[CH3:36][Si:37]([CH2:40][CH2:41][O:42][CH2:43]Cl)([CH3:39])[CH3:38]>CN(C=O)C>[CH2:29]([N:10]([CH2:3][C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1)[CH:11]1[CH2:12][CH:13]([C:17]2[N:21]3[C:22]4[CH:28]=[CH:27][N:26]([CH2:43][O:42][CH2:41][CH2:40][Si:37]([CH3:39])([CH3:38])[CH3:36])[C:23]=4[N:24]=[CH:25][C:20]3=[N:19][CH:18]=2)[CH:14]([CH3:16])[CH2:15]1)[C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1

参加物

5

反応物 3

HCID 24758Sodium hydrideHCID 27242712-Chloromethyl 2-(trimethylsilyl)ethyl etherHCID 58557511N,N-dibenzyl-3-(3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazin-8-yl)-4-methylcyclopentanamine

生成物 1

HCID 58557169N,N-dibenzyl-3-methyl-4-(3-((2-(trimethylsilyl)ethoxy)methyl)-3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazin-8-yl)cyclopentanamine収率 60.3%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒2 回

実験手順

To the suspension of sodium hydride (60% dispersion in mineral oil, 0.382 g, 9.55 mmol) in DMF (50 mL) was added drop-wise a solution of N,N-dibenzyl-3-(3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazin-8-yl)-4-methylcyclopentanamine (3.96 g, 9.09 mmol) in DMF (50 mL) at 0° C. The resulting solution was stirred at ambient temperature for about 10 min. SEM chloride (1.774 mL, 10.0 mmol) was added drop-wise and the solution was stirred for about 1 h. The solvent was removed under reduced pressure and the residue was partitioned between water and EtOAc (200 mL each). The organic layer was washed with brine (100 mL), dried over anhydrous MgSO4, filtered and concd. The residue was purified by silica gel chromatography eluting with 10-80% EtOAc in DCM to yield N,N-dibenzyl-3-methyl-4-(3-((2-(trimethylsilyl)ethoxy)methyl)-3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazin-8-yl)cyclopentanamine (3.1 g, 60% yield) as an off-white amorphous solid. LC/MS (Table 1, Method a) Rt=3.32 min; MS m/z 566 (M+H)+.

後処理

  1. stirringthe solution was stirred for about 1 h
  2. customThe solvent was removed under reduced pressure
  3. customthe residue was partitioned between water and EtOAc (200 mL each)
  4. washThe organic layer was washed with brine (100 mL)
  5. dry with materialdried over anhydrous MgSO4
  6. filtrationfiltered
  7. customThe residue was purified by silica gel chromatography
  8. washeluting with 10-80% EtOAc in DCM

出典と根拠

ORDレコード
ord-a5e3b38c50c94156b6c5d27147b18d07
出典データセット
uspto-grants-2013_04
特許番号
US08426411B2

反応ノート

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