Oxindole alkaloids. A novel non-biomimetic entry to (−)-Horsfiline.
摘要:
A novel non-biomimetic synthesis of horsfiline has been developed. The key pyrrolidine forming reaction is the 1,3-dipolar cycloaddition of the thermally generated N-methylazomethine ylide to a suitable 3-alkylidene-indolin-2(3H)one. The same strategy was also applied to the synthesis of pure (R)-(-)-enantiomer.
Oxindole alkaloids. A novel non-biomimetic entry to (−)-Horsfiline.
摘要:
A novel non-biomimetic synthesis of horsfiline has been developed. The key pyrrolidine forming reaction is the 1,3-dipolar cycloaddition of the thermally generated N-methylazomethine ylide to a suitable 3-alkylidene-indolin-2(3H)one. The same strategy was also applied to the synthesis of pure (R)-(-)-enantiomer.
A novel non-biomimetic synthesis of horsfiline has been developed. The key pyrrolidine forming reaction is the 1,3-dipolar cycloaddition of the thermally generated N-methylazomethine ylide to a suitable 3-alkylidene-indolin-2(3H)one. The same strategy was also applied to the synthesis of pure (R)-(-)-enantiomer.