Analogues of cytotoxic squamocin using reliable reactions: new insights into the reactivity and role of the α,β-unsaturated lactone of the Annonaceous acetogenins. - Duval,R.A.; Poupon,E.; Romero,V.; Peris,E.; Lewin,G.; Cortes,D.; Brandt,U.; Hocquemiller,R. (Tetrahedron, 2006)