반응 #42089

ord-681d7da1a15142d5a009ebb5f2d80216

용매

반응 조건

상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    workup.ADDITIONwas added
  2. 2
    workup.STIRRINGwas stirred 30 min
  3. 3
    기타The reaction mixture was quenched with aqueous NaHCO3 (saturated)
  4. 4
    추출extracted with ethyl acetate
  5. 5
    건조The organic layer was dried (MgSO4)
  6. 6
    여과filtered
  7. 7
    농축concentrated in vacuo
  8. 8
    기타Purification by flash chromatography on silica
  9. 9
    세척eluted with 0-30% EtOAc in hexane

실험 절차

A solution of the product from Example 2 (100 mg) in THF (3 mL), under nitrogen, was treated with sodium hydride (60% in mineral oil) (10 mg). The suspension was stirred for 5 min were upon methoxyacetyl chloride (40 uL) was added. The reaction was allowed to warm to room temperature and was stirred 30 min. The reaction mixture was quenched with aqueous NaHCO3 (saturated) and extracted with ethyl acetate. The organic layer was dried (MgSO4), filtered and concentrated in vacuo. Purification by flash chromatography on silica eluted with 0-30% EtOAc in hexane afforded the title compound. HPLC/MS: 543.8 (M+1), 545.8 (M+3); Rt=4.19 min.

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US07728141B2uspto-grants-2010_06