a Graduate School of Pharmaceutical Sciences, The University of Tokushima, 1-78-1 Sho-machi, Tokushima 770-8505, Japan b Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga 816-8580, Japan
Abstract:
The structures of the natural heliannuols G and H were established by the enantiocontrolled syntheses of the dihydrobenzofurans predicted for the natural products employing the palladium-mediated cyclization and cross metathesis as the key steps.