反应 #1566582
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US08350083B2
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: Methoxyl amine hydrochloride (0.74 g, 8.9 mmol) was added to a solution of Example 15C (1.92 g, 8.1 mmol) in pyridine (20 mL) and stirred overnight at ambient temperature. The mixture was concentrate under reduced pressure, ethyl acetate (200 mL) was added, and the organic layer was washed twice with water (200 mL) and brine, dried over sodium sulfate, filtered, and concentrate under reduced pressure. The residue was chromatographed on silica gel eluting with 0-20% ethyl acetate in hexane to afford the title compound. 1H NMR (300 MHz, CDCl3) δ ppm 2.88 (t, J=6.44 Hz, 2H), 3.29 (t, J=6.44 Hz, 2H), 3.97 (s, 3H), 4.47 (s, 2H), 6.65 (d, J=8.14 Hz, 1H), 6.70 (t, J=7.46 Hz, 1H), 7.13 (td, J=7.80, 1.70 Hz, 1H), 7.31 (m, 5H), 7.92 (dd, J=7.80, 1.70 Hz, 1H). MS (DCI) m/z 267.11 (M+H)+. The mixture was concentrate under reduced pressure, ethyl acetate (200 mL) was added the organic layer was washed twice with water (200 mL) and brine dried over sodium sulfate filtered concentrate under reduced pressure The residue was chromatographed on silica gel eluting with 0-20% ethyl acetate in hexane
来源 ID: ord-a8407e98b1734863ba0b961c11e536ed