반응 #1996795

ord-b4aa4112c5094a5a8a77dd9f0c0536cb

반응 조건

상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    추출The crude product was extracted into dichloromethane
  2. 2
    세척washed with water
  3. 3
    건조The combined organic layers were dried over anhydrous Na2SO4
  4. 4
    여과filtered
  5. 5
    농축concentrated in vacuo
  6. 6
    기타The crude product was purified by flash chromatography

실험 절차

To a solution of Example 1 (0.25 g, 0.82 mmol) in dichloromethane (2 mL) was added 4-picolyl chloride hydrochloride (0.13 g, 0.79 mmol) and triethylamine (0.29 mL, 2.08 mmol). The resulting mixture was stirred at ambient temperature overnight. The crude product was extracted into dichloromethane and washed with water followed by brine. The combined organic layers were dried over anhydrous Na2SO4, filtered and concentrated in vacuo. The crude product was purified by flash chromatography using hexane/EtOAc (gradient system) to give the title compound (0.11 g, 45%); 1H NMR (400 MHz, CDCl3); δ 1.70-1.81 (m, 3H), 2.03 (m, 1H), 2.27 (m, 1H), 2.94-3.03 (m, 2H), 3.49 (d, J=14.4 Hz, 1H), 3.86 (m, 1H), 3.92 (s, 2H), 3.94 (m, 1H), 4.19 (d, J=14.4 Hz, 1H), 6.79 (d, J=8.8 Hz, 2H), 7.08 (d, J=8.8 Hz, 2H), 7.15-7.20 (m, 3H), 7.26-7.29 (m, 4H), 8.51 (m, 2H); MS (m/z) 359.5 (M+1); LC (99.7%); HPLC (91.6%)

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US08598359B2uspto-grants-2013_12