Enantioselective total synthesis of (+)-isoboonein, an iridoid lactone, was accomplished from (-)-dimenthyl bicyclo[2.2.1]hept-5-ene-2, 3-dicarboxylate, which was synthesized by diastereoselective Diels-Alder reaction of dimenthyl fumarate with cyclopentadiene.
(-)-dimenthyl bicyclo[2.2.1]hept-5-ene-2, 3-dicarboxylate 是由
富马酸二imenthyl fumarate 与
环戊二烯的非对映选择性 Diels-Alder 反应合成的。