The natural products of dispirocochlearoids are complex Ganoderma meroterpenoids featuring a 6/6/5/6/6/6 ring system and are selective cox-2 inhibitors.Herein,we describe our progress regarding the total synthesis of ...The natural products of dispirocochlearoids are complex Ganoderma meroterpenoids featuring a 6/6/5/6/6/6 ring system and are selective cox-2 inhibitors.Herein,we describe our progress regarding the total synthesis of dispirocochlearoids A-C,in which a hexacyclic skeleton was constructed firstly.The key steps of this work involve an intermolecular[4+2]cycloaddition reaction,a ring cleavage approach via Ticla,and the installation of a profoundly sterically hindering lactone.展开更多
文摘The natural products of dispirocochlearoids are complex Ganoderma meroterpenoids featuring a 6/6/5/6/6/6 ring system and are selective cox-2 inhibitors.Herein,we describe our progress regarding the total synthesis of dispirocochlearoids A-C,in which a hexacyclic skeleton was constructed firstly.The key steps of this work involve an intermolecular[4+2]cycloaddition reaction,a ring cleavage approach via Ticla,and the installation of a profoundly sterically hindering lactone.