Semi-synthetic C23-substituted milbemycins via spiroacetal cleavage and resynthesis
摘要:
The lactone intermediates (2) and (3) are converted by lithium acetylide chemistry followed by mercury catalysed hydration to novel semi-synthetic 23-oxo C24 and C25 substituted milbemycins (7).
Semi-synthetic C23-substituted milbemycins via spiroacetal cleavage and resynthesis
摘要:
The lactone intermediates (2) and (3) are converted by lithium acetylide chemistry followed by mercury catalysed hydration to novel semi-synthetic 23-oxo C24 and C25 substituted milbemycins (7).