Enantioselective Synthesis of Cassane‐Type Furanoditerpenoids: Total Synthesis of Sucutiniranes C and D

The first enantioselective total synthesis of cassane‐type furanoditerpenoids featuring an aromatic C ring and a substituted B ring is presented. The strategy employed relied on diastereoselective Diels–Alder (DA) reaction of an enantiomerically pure 1,3,3‐trisubstituted‐2‐vinyl‐cyclohexene (sterically demanding diene). It was secured in > 99 % ee through elaboration of enzymatically resolved...