Cesium carbonate → 4-{2-[2-(2-(R)-Methyl-pyrrolidin-1-yl)-ethyl]-1H-indol-5-yl}-benzonitrile

HRID 900202

反応式

HRID 900202 の反応式
C([O-])([O-])=O.[Cs+].[Cs+].[F-].[Cs+].[C:9]([C:11]1[CH:16]=[CH:15][C:14](B(O)O)=[CH:13][CH:12]=1)#[N:10].Br[C:21]1[CH:22]=[C:23]2[C:27](=[CH:28][CH:29]=1)[NH:26][C:25]([CH2:30][CH2:31][N:32]1[CH2:36][CH2:35][CH2:34][C@H:33]1[CH3:37])=[CH:24]2.C1(P(C2CCCCC2)C2C=CC=CC=2C2C=CC=CC=2)CCCCC1>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C1(C)C=CC=CC=1.O>[CH3:37][C@@H:33]1[CH2:34][CH2:35][CH2:36][N:32]1[CH2:31][CH2:30][C:25]1[NH:26][C:27]2[C:23]([CH:24]=1)=[CH:22][C:21]([C:14]1[CH:15]=[CH:16][C:11]([C:9]#[N:10])=[CH:12][CH:13]=1)=[CH:29][CH:28]=2

参加物

9

反応物 5

HCID 10796Cesium carbonateHCID 25953Cesium fluorideHCID 27342162-(Dicyclohexylphosphino)biphenylHCID 27343264-Cyanophenylboronic acidHCID 210414975-Bromo-2-[2-(2-(R)-methyl-pyrrolidin-1-yl)-ethyl]-1H-indole

生成物 1

HCID 113594134-{2-[2-(2-(R)-Methyl-pyrrolidin-1-yl)-ethyl]-1H-indol-5-yl}-benzonitrile収率 44.9%

試薬・触媒・溶媒 3

HCID 9811564Bis(dibenzylideneacetone)palladium触媒HCID 962Water溶媒HCID 1140Toluene溶媒

反応条件

温度
65 °C

実験手順

A reaction flask was charged with Cs2CO3 (1.14 g, 3.5 mmol), CsF (0.38 g, 2.5 mmol), 4-cyanophenylboronic acid (425 mg, 2.5 mmol), and H2O (10 mL) followed by a toluene solution (10 mL) of 5-bromo-2-[2-(2-(R)-methyl-pyrrolidin-1-yl)-ethyl]-1H-indole (307 mg, 1.0 mmol). The resulting mixture was purged with nitrogen. To the reaction mixture was then added 2-dicyclohexylphosphino(biphenyl) (35 mg, 0.1 mmol) and Pd2(dba)3 (46 mg, 0.05 mmol). The resulting reaction mixture was then heated to 65° C. overnight under nitrogen after which HPLC indicated that all the 5-bromo-2-[2-(-(R)-methyl-pyrrolidin-1-yl-ethyl]-1H-indole was consumed. The reaction mixture was cooled to room temperature and IPAC (20 mL) was added. The organic layer was separated and concentrated. The residue was purified by column chromatography eluting with heptane/acetone/CH2Cl2/Et3N (600 mL/40 mL/5 mL/2 mL). The fractions containing product were combined and concentrated under reduced pressure to provide the title compound as a semi-solid (148 mg). 1H NMR (400 MHz, CDCl3) δ 10.22(s, 1H), 7.65-7.74 (m, 5H), 7.40 (d, J=8.5 Hz, 1H), 7.33 (dd, J=1.8, 8.5 Hz, 1H), 6.27 (s, 1H), 3.37-3.42 (m, 1H), 3.21-3.25 (m, 1H), 3.01-3.16 (m, 2H), 2.54-2.62 (m, 2H), 2.33 (q, J=8.78 Hz, 1H), 2.04-2.08 (m, 1H), 1.80-1.93 (m, 2H), 1.56-1.63 (m, 1H), 1.21 (d, J=6.2 Hz, 3H). 13C NMR (400 MHz, CDCl3) δ 146.99, 139.96, 135.61, 132.05, 130.30, 128.74, 127.32, 120.02, 119.13, 118.36, 111.13, 109.16, 99.49, 61.25, 53.68, 53.57, 32.92, 26.21, 22.14, 18.98. [M+H]+ at m/z 330.

後処理

  1. customThe resulting mixture was purged with nitrogen
  2. customThe resulting reaction mixture
  3. customwas consumed
  4. temperatureThe reaction mixture was cooled to room temperature
  5. additionIPAC (20 mL) was added
  6. customThe organic layer was separated
  7. concentrationconcentrated
  8. customThe residue was purified by column chromatography
  9. washeluting with heptane/acetone/CH2Cl2/Et3N (600 mL/40 mL/5 mL/2 mL)
  10. additionThe fractions containing product
  11. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-136270b4a7dc4a5cbc9b62130441d70c
出典データセット
uspto-grants-2008_04
特許番号
US07358263B2

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