469-26-1Relevant articles and documents
Synthese der Pestwurzinhaltsstoffe (+)-Petasin und (+)-Isopetasin
Witschel, Matthias Christian,Bestmann, Hans Juergen
, p. 3325 - 3328 (2007/10/02)
The first total synthesis of optically active petasine 1 and isopetasine 2 succeeded by applying an annelation reaction, based on the reaction of cyclic δ-ketocarboxylic acids with N-phenyliminoketenylidenetriphenylphosphorane. 1 and 2 are biologically ac