Diisopropylamine → N-methoxy-N-methyl-2-{2-[(2R)-2-methyl-1-pyrrolidinyl]ethyl}-1-benzofuran-5-carboxamide

HRID 494829

反応式

HRID 494829 の反応式
[OH:1][C:2]1[CH:13]=[CH:12][C:5]([C:6]([N:8]([O:10][CH3:11])[CH3:9])=[O:7])=[CH:4][C:3]=1I.[CH2:15]([N:19]1[CH2:23][CH2:22][CH2:21][C@H:20]1[CH3:24])[CH2:16][C:17]#[CH:18].CC1C=CC(P(C2C=CC(C)=CC=2)C2C=CC(C)=CC=2)=CC=1.C(NC(C)C)(C)C>C(#N)C.CC([O-])=O.CC([O-])=O.[Pd+2].[Cu](I)I>[CH3:11][O:10][N:8]([CH3:9])[C:6]([C:5]1[CH:12]=[CH:13][C:2]2[O:1][C:17]([CH2:16][CH2:15][N:19]3[CH2:23][CH2:22][CH2:21][C@H:20]3[CH3:24])=[CH:18][C:3]=2[CH:4]=1)=[O:7]

参加物

8

反応物 4

HCID 7912DiisopropylamineHCID 13956Phosphine, tris(4-methylphenyl)-HCID 11367023(R)-1-(But-3-yn-1-yl)-2-methylpyrrolidineHCID 117712104-hydroxy-3-iodo-N-methoxy-N-methylbenzamide

生成物 1

HCID 11438480N-methoxy-N-methyl-2-{2-[(2R)-2-methyl-1-pyrrolidinyl]ethyl}-1-benzofuran-5-carboxamide収率 10.2%

試薬・触媒・溶媒 3

HCID 83717Copper iodide触媒HCID 167845palladium(II) acetate触媒HCID 6342Acetonitrile溶媒

反応条件

温度
25 °C

実験手順

The product from Example 71D (11.6 g, 37.77 mmol) in acetonitrile (50 mL) was treated sequentially with a 0.12M solution of the product from Example 68B (378 mL, 45.33 mmol), Pd(OAc)2 (0.254 g, 1.13 mmol), tris(4-methylphenyl)phosphine (0.518 g, 1.699 mmol), and diisopropyl amine (39.7 mL, 283.3 mmol). After stirring at 25° C. for 10 minutes, the mixture was treated with copper iodide (2.158 g, 11.33 mmol) and heated at 50° C. in an inert atmosphere for 18 hours. The reaction mixture was allowed to cool to room temperature, filtered through celite, and the filtrate was concentrated under reduced pressure. The residue was purified on silica gel using 95% DCM, 9.9% MeOH, 0.1% NH4OH to provide the title compound (1.22 g, 10.2% yield). 1HNMR (300MHz, CD3OD) δ 1.18 (d, 3H, J=6.1 Hz), 1.47 (m, 1H), 1.78 (m, 2H), 1.91-2.34 (m, 2H), 2.50 (m, 2H) 3.06 (m, 2H), 3.26 (m, 2H), 3.38 (s, 3H), 3.59 (s, 3H), 6.63 (s, 1H), 7.51 (q, 2H), 7.84 (1H); MS (ESI) m/z 317.2 (M+H)+.

後処理

  1. temperatureheated at 50° C. in an inert atmosphere for 18 hours
  2. temperatureto cool to room temperature
  3. filtrationfiltered through celite
  4. concentrationthe filtrate was concentrated under reduced pressure
  5. customThe residue was purified on silica gel using 95% DCM, 9.9% MeOH, 0.1% NH4OH

出典と根拠

ORDレコード
ord-dc151b476a42447c9c038bff6c8daf99
出典データセット
uspto-grants-2009_05
特許番号
US07538138B2

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