Diisopropylethylamine → (4-(1-((R)-1-(2,4-dichlorophenyl)ethyl)-1H-benzo[d]imidazol-6-yl)-5,6-dihydropyridin-1(2H)-yl)((R)-piperidin-2-yl)methanone

HRID 2359119ノート

反応式

HRID 2359119 の反応式
[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[C@H:9]([N:11]1[C:15]2[CH:16]=[C:17]([C:20]3[CH2:21][CH2:22][NH:23][CH2:24][CH:25]=3)[CH:18]=[CH:19][C:14]=2[N:13]=[CH:12]1)[CH3:10].C(OC([N:33]1[CH2:38][CH2:37][CH2:36][CH2:35][C@@H:34]1[C:39](O)=[O:40])=O)(C)(C)C.F[P-](F)(F)(F)(F)F.C[N+](C)=C(N(C)C)ON1C2N=CC=CC=2N=N1.C(N(C(C)C)CC)(C)C>CN(C)C=O.C(OCC)(=O)C>[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[C@H:9]([N:11]1[C:15]2[CH:16]=[C:17]([C:20]3[CH2:21][CH2:22][N:23]([C:39]([C@H:34]4[CH2:35][CH2:36][CH2:37][CH2:38][NH:33]4)=[O:40])[CH2:24][CH:25]=3)[CH:18]=[CH:19][C:14]=2[N:13]=[CH:12]1)[CH3:10]

参加物

7

反応物 4

HCID 81531DiisopropylethylamineHCID 688618(2R)-1-[(tert-butoxy)carbonyl]piperidine-2-carboxylic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 86688430(R)-1-(1-(2,4-dichlorophenyl)ethyl)-6-(1,2,3,6-tetrahydropyridin-4-yl)-1H-benzo[d]imidazole

生成物 1

HCID 71569868(4-(1-((R)-1-(2,4-dichlorophenyl)ethyl)-1H-benzo[d]imidazol-6-yl)-5,6-dihydropyridin-1(2H)-yl)((R)-piperidin-2-yl)methanone収率 85%

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a stirred solution of the crude (R)-1-(1-(2,4-dichlorophenyl)ethyl)-6-(1,2,3,6-tetrahydropyridin-4-yl)-1H-benzo[d]imidazole (1.2 g, 3.1 mmol) and (R)-1-(t-butoxycarbonyl)piperidine-2-carboxylic acid (0.71 g, 3.1 mmol) in N,N-dimethylformamide (DMF, 10 mL) at 0° C. under nitrogen was added N,N,N′,N′-tetramethyl-O-(7-azabenzotriazol-1-yl)uronium hexafluorophosphate (HATU, 1.4 g, 3.7 mmol) and diisoproylethylamine (iPr2NEt, 0.80 g, 6.2 mmol). The reaction mixture was stirred at room temperature for 1 h, and diluted with ethyl acetate. The mixture was washed with saturated aqueous sodium bicarbonate and brine. The organic layer was dried (Na2SO4), filtered, and concentrated in vacuo. The crude product was purified by flash chromatography (SiO2, 10-100% ethyl acetate in hexanes) to afford the desired product (1.5 g, 2.6 mmol, 85%).

後処理

  1. washThe mixture was washed with saturated aqueous sodium bicarbonate and brine
  2. dry with materialThe organic layer was dried (Na2SO4)
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe crude product was purified by flash chromatography (SiO2, 10-100% ethyl acetate in hexanes)

出典と根拠

ORDレコード
ord-fab3250612234f1cb7eeaf9058980934
出典データセット
uspto-grants-2014_04
特許番号
US08685959B2

反応ノート

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