Triethylamine → 3-[2-(6-Butoxy-3-pyridyl)ethynyl]quinuclidin-3-ol

HRID 2742

反応式

HRID 2742 の反応式
[C:1]([C:3]1([OH:11])[CH:8]2[CH2:9][CH2:10][N:5]([CH2:6][CH2:7]2)[CH2:4]1)#[CH:2].Br[C:13]1[CH:14]=[CH:15][C:16]([O:19][CH2:20][CH2:21][CH2:22][CH3:23])=[N:17][CH:18]=1.C(N(CC)CC)C>CN(C)C=O.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.Cl[Pd]Cl.[Cu]I>[CH2:20]([O:19][C:16]1[N:17]=[CH:18][C:13]([C:2]#[C:1][C:3]2([OH:11])[CH:8]3[CH2:9][CH2:10][N:5]([CH2:6][CH2:7]3)[CH2:4]2)=[CH:14][CH:15]=1)[CH2:21][CH2:22][CH3:23]

参加物

7

反応物 3

HCID 8471TriethylamineHCID 36135173-Ethynyl-1-azabicyclo[2.2.2]octan-3-olHCID 189362685-Bromo-2-butoxypyridine

生成物 1

HCID 99482783-[2-(6-Butoxy-3-pyridyl)ethynyl]quinuclidin-3-ol収率 25.2%

試薬・触媒・溶媒 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)触媒HCID 6102075Dichlorobis(triphenylphosphine)palladium触媒HCID 6228Dimethylformamide溶媒

反応条件

温度
90 °C

実験手順

A stirred mixture of 3-ethynyl-3-hydroxyquinuclidine (600 mg), 5-bromo-2-n-butoxypyridine (920 mg), bis-(triphenylphosphine)-palladium (II) chloride (140 mg), copper (I) iodide (70 mg) and dry triethylamine (10 ml) in dry dimethylformamide (20 ml) was heated at 90° C. under an atmosphere of argon for 6 hours. The reaction mixture was cooled and the dimethylformamide and triethylamine were removed by evaporation. The residue was treated with 2M aqueous sodium hydroxide solution (20 ml) and the resulting mixture extracted with dichloromethane (3×20 ml). The organic extracts were combined, dried (MgSO4) and evaporated to give a brown residue which was crystallised from acetonitrile to yield 3-[2-(6-butoxy-3-pyridyl)ethynyl]quinuclidin-3-ol (300 mg) as a solid, m.p. 149°-151° C.; microanalysis, found: C, 71.3; H, 7.9; N, 8.9%; C18H24N2O2 0.1H 2O requires: C, 71.47; H, 8.08; N, 9.26%; NMR (DHSOd6): 0.9-1.0(3H, t), 1.2-1.35(1H, m), 1.35-1.5(2H, m), 1.5-1.65(1H, m), 1.65-1.75(2H, m), 1.75-2.0(3H, m), 2.6-2.75(4H, t), 2.8-2.85(1H, d), 3.02-3.17(1H, d), 4.2-4.3(2H, t), 5.55(1H, s), 6.75-6.83(1H, d), 7.65-7.72(1H, d) and 8.2(1H, s); m/Z 301 (M+H).

後処理

  1. temperatureThe reaction mixture was cooled
  2. customthe dimethylformamide and triethylamine were removed by evaporation
  3. additionThe residue was treated with 2M aqueous sodium hydroxide solution (20 ml)
  4. extractionthe resulting mixture extracted with dichloromethane (3×20 ml)
  5. dry with materialdried (MgSO4)
  6. customevaporated
  7. customto give a brown residue which
  8. customwas crystallised from acetonitrile

出典と根拠

ORDレコード
ord-c6c10cd15dfc4d01b84ec18ab3764f16
出典データセット
uspto-grants-1998_03
特許番号
US05731323

関連ノート

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