تفاعل #327966

ord-e28e87a39a224d9eb81329e911a97348

المذيبات

ظروف التفاعل

درجة الحرارة
60°CELSIUS
الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    أخرىThe solvent was removed under reduced pressure
  2. 2
    أخرىthe residue was purified by reverse phase
  3. 3
    غسيلacetonitrile/water (0.05 M ammonium acetate) gradient elution method

الإجراء التجريبي

To a suspension of Example 282E (0.16 g, 0.660 mmol) in tert-butanol (1.2 mL) was added 1-(azidomethyl)-3-methylbenzene (0.098 g, 0.667 mmol), then water (1.2 mL). A solution of sodium (R)-2-((S)-1,2-dihydroxyethyl)-4-hydroxy-5-oxo-2,5-dihydrofuran-3-olate (0.057 mL, 0.066 mmol, 1.6 M in water) and an aqueous solution of copper (II) sulfate pentahydrate (0.019 mL, 6.6 μmol, 0.34M) was added. The reaction mixture was heated at about 60° C. for about 2 hours. The solvent was removed under reduced pressure and the residue was purified by reverse phase HPLC using acetonitrile/water (0.05 M ammonium acetate) gradient elution method to afford the title compound. 1H NMR (400 MHz, DMSO-d6) δ ppm 12.77 (s, 1H), 10.05 (s, 1H), 8.56 (s, 1H), 8.24 (s, 1H), 7.82 (d, 1H, J=8.6), 7.50 (d, 1H, J=8.8), 7.28 (t, 1H, J=7.6), 7.16 (m, 4H), 5.59 (s, 2H), 3.18 (s, 2H), 2.34 (s, 6H), 2.30 (s, 3H). MS (ESI+) m/z 390.3 (M+H)+.

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US08648069B2uspto-grants-2014_02