2-Methylbenzylamine → [5-(5-Methoxy-2-trifluoromethyl-benzoimidazol-1-yl)-pyrazin-2-yl]-(2-methyl-benzyl)-amine

HRID 1915031ノート

反応式

HRID 1915031 の反応式
Br[C:2]1[N:3]=[CH:4][C:5]([N:8]2[C:12]3[CH:13]=[CH:14][C:15]([O:17][CH3:18])=[CH:16][C:11]=3[N:10]=[C:9]2[C:19]([F:22])([F:21])[F:20])=[N:6][CH:7]=1.FC1C=CC=C(F)C=1C(NC1C=NC(N2C3C=CC(OC)=CC=3N=C2C(F)(F)F)=CN=1)=O.[CH3:55][C:56]1[CH:63]=[CH:62][CH:61]=[CH:60][C:57]=1[CH2:58][NH2:59].N1CCC[C@H]1C(O)=O>CS(C)=O.[Cu]I.CCOC(C)=O>[CH3:18][O:17][C:15]1[CH:14]=[CH:13][C:12]2[N:8]([C:5]3[N:6]=[CH:7][C:2]([NH:59][CH2:58][C:57]4[CH:60]=[CH:61][CH:62]=[CH:63][C:56]=4[CH3:55])=[N:3][CH:4]=3)[C:9]([C:19]([F:22])([F:21])[F:20])=[N:10][C:11]=2[CH:16]=1

参加物

8

反応物 4

HCID 69932-MethylbenzylamineHCID 145742L-ProlineHCID 247517822,6-difluoro-N-[5-(5-methoxy-2-trifluoromethyl-benzoimidazol-1-yl)-pyrazin-2-yl]-benzamideHCID 573569041-(5-Bromopyrazin-2-YL)-2-(trifluoromethyl)-5-methoxy-1H-benzo[D]imidazole

生成物 1

HCID 24752641[5-(5-Methoxy-2-trifluoromethyl-benzoimidazol-1-yl)-pyrazin-2-yl]-(2-methyl-benzyl)-amine収率 46.5%

試薬・触媒・溶媒 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)触媒HCID 679Dimethyl Sulfoxide溶媒HCID 8857Ethyl Acetate溶媒

実験手順

Into a 50 mL roundbottom flask, was placed a solution of 1-(5-bromo-pyrazin-2-yl)-5-methoxy-2-trifluoromethyl-1H-benzoimidazole (iv) (50 mg, 0.13 mmol) in DMSO (5 mL) (1-(5-bromo-pyrazin-2-yl)-5-methoxy-2-trifluoromethyl-1H-benzoimidazole (iv) was prepared as described for Compound 1 above). To this was added 2-methyl-benzylamine (40 mg, 0.33 mmol) followed by CuI (10 mg, 0.05 mmol). To the mixture was added L-proline (20 mg, 0.17 mmol). The resulting solution was held at 50° C. for 1 hr while the reaction progress was monitored by TLC (EtOAc/PE=1:2). After completion, the reaction mixture was allowed to cool to room temperature, then washed twice with H2O (30 mL each). After removal of the volatile components under vacuum, the residue was purified by eluting through a silica gel column with a 1:10 EtOAc/PE solvent system. This resulted in 25 mg (44%) of the product [5-(5-Methoxy-2-trifluoromethyl-benzoimidazol-1-yl)-pyrazin-2-yl]-(2-methyl-benzyl)-amine (Compound 46) as a white solid.

後処理

  1. customInto a 50 mL roundbottom flask, was placed
  2. washwashed twice with H2O (30 mL each)
  3. customAfter removal of the volatile components under vacuum
  4. customthe residue was purified
  5. washby eluting through a silica gel column with a 1:10 EtOAc/PE solvent system

出典と根拠

ORDレコード
ord-f0ebc9a4139a4afa8c05400f8f8d5693
出典データセット
uspto-grants-2013_12
特許番号
US08614321B2

反応ノート

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