Synthesis of (.+-.)-(Z)-2β-Hydroxy-14-hydro-β-santalol Employing Tandem Radical Cyclization.

Abstract ( Z )-2β-Hydroxy-14-hydro-β-santalol ( 1 ), a potent inhibitor of Helicobacter pylori growth, was synthesized as a racemate via tandem radical cyclization. Reactivity and stereoselectivity of the cyclization were examined using various substrates, and the bicyclo[2.2.1]heptane structure was efficiently constructed by a tethered approach.