반응 #1993

ord-d35336a8d63f46faa12cbe3c8194e4f3

반응 조건

상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    세척The reaction mixture was washed with NaHCO3 solution and water
  2. 2
    기타the solvent was removed
  3. 3
    기타The residue was chromatographed on silica gel

실험 절차

A 3.5 g sample of the alcohol from step 471a above was dissolved in 25 mL of methylene chloride and treated with methanesulfonyl chloride an TEA at 0° C. for 2 hours. The reaction mixture was washed with NaHCO3 solution and water, and the solvent was removed. The residue was chromatographed on silica gel to give 3 g of the title compound.

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US05726182uspto-grants-1998_03