Multi-step reaction with 10 steps
1.1: triphenylphosphine; diethylazodicarboxylate / tetrahydrofuran / 0 - 20 °C / Inert atmosphere
2.1: lithium aluminium tetrahydride / tetrahydrofuran / 0 - 20 °C
3.1: Dess-Martin periodane / dichloromethane / 2 h / 20 °C
4.1: borane-THF / tetrahydrofuran / 1 h / 20 °C
4.2: 0.67 h / -78 °C
4.3: 2 h / -78 °C
5.1: 1H-imidazole / N,N-dimethyl-formamide / 16 h / 20 °C
6.1: n-butyllithium / tetrahydrofuran / 2 h / -78 °C
6.2: 0.08 h
7.1: tetrakis(triphenylphosphine) palladium(0) / 1,4-dioxane / 16 h / Reflux; Inert atmosphere
8.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 2 h / 20 °C / Inert atmosphere
9.1: Dess-Martin periodane / dichloromethane / 2 h / 20 °C
10.1: trimethyltin(IV) hydroxide / 1,2-dichloro-ethane / 16 h / 70 °C
With
1H-imidazole; lithium aluminium tetrahydride; tetrakis(triphenylphosphine) palladium(0); n-butyllithium; borane-THF; tetrabutyl ammonium fluoride; Dess-Martin periodane; triphenylphosphine; trimethyltin(IV) hydroxide; diethylazodicarboxylate;
In
tetrahydrofuran; 1,4-dioxane; dichloromethane; 1,2-dichloro-ethane; N,N-dimethyl-formamide;
1.1: Mitsunobu alkylation / 7.1: Stille coupling;
DOI:10.1021/jm101597x