반응 #1685778

ord-fe55aa19160f4fd19c3e4fe284431d55

용매

반응 조건

상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    온도while cooling on ice
  2. 2
    추출extracted with chloroform (10 ml) twice
  3. 3
    건조dried over anhydrous magnesium sulfate
  4. 4
    기타The solvent was evaporated under reduced pressure
  5. 5
    기타to obtain the compound ([3]-(35)-587') (0.08 g) as a light yellow solid

실험 절차

The compound ([3]-(34)-587) (0.07 g) prepared in Example 38 and 4-dimethylaminopyridine (0.01 g) were dissolved in dry pyridine (1 ml). Valeryl chloride (0.043 g) was added dropwise by a syringe while cooling on ice. The mixture was stirred at room temperature for 2 hours, then, poured into water (20 ml), extracted with chloroform (10 ml) twice, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure to obtain the compound ([3]-(35)-587') (0.08 g) as a light yellow solid.

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US05739131uspto-grants-1998_04