Scheme 6.
Strategy for the synthesis of (+)-aureol (1) according to Magauer et al. [8]. (a): Retrosynthetic plan. (b): Synthesis of (+)-aureol (1). TMEDA = N,N,N′,N′-tetramethylethane-1,2-diamine; NaHDMS = sodium bis(trimethylsilyl)amide; AIBN = 2,2′-azobis(2-methylpropionitrile).
