反応 #172120

ord-4731ecb25a6b4a6e952eced4398d3978

反応条件

詳細条件
See reaction.notes.procedure_details.

後処理

  1. 1
    抽出the product was extracted once with dichloromethane
  2. 2
    乾燥dried over Na2SO4
  3. 3
    濃縮concentrated

実験手順

To a solution of Example 71A (2.62 g, 8.66 mmol) in tetrahydrofuran (87 mL) was added lithium aluminum hydride in tetrahydrofuran (13.00 mL, 26.0 mmol) in small portions, and the mixture was stirred at room temperature for 24 hours. Water was added carefully and the product was extracted once with dichloromethane, dried over Na2SO4 and concentrated to afford the title compound. 1H NMR (500 MHz, pyridine-d5) δ ppm 7.31 (d, J=7.4, 1H), 7.20-7.17 (m, 2H), 7.13 (d, J=7.7, 1H), 4.58 (dd, J=14.5, 48.4, 2H), 4.01-3.90 (m, 2H), 3.71-3.57 (m, 2H), 3.40 (t, J=10.4, 1H), 3.19-3.05 (m, 2H), 2.71 (s, 3H), 2.66-2.52 (m, 1H); MS (ESI+) m/z 203.0 [M+H]+.

出典

DOI: 10.6084/m9.figshare.5104873.v1特許: US08846951B2uspto-grants-2014_09