Asymmetric Reductive Cyclization. Total Synthesis of (−)-C10-Desmethyl Arteannuin B
摘要:
An efficient total synthesis of (-)-C-10-desmethyl arteannuin B (5) has been achieved. The sequence features the use of a chiral auxiliary to introduce absolute asymmetry at an early stage and a stereoselective, chelation-controlled reductive cyclization of 8, using samarium diiodide as the reducing agent. The methodology promises to be applicable to the synthesis of a wide range of analogs capable of being converted to potent antimalarial agents related to artemisinin (1).
Asymmetric Reductive Cyclization. Total Synthesis of (−)-C10-Desmethyl Arteannuin B
摘要:
An efficient total synthesis of (-)-C-10-desmethyl arteannuin B (5) has been achieved. The sequence features the use of a chiral auxiliary to introduce absolute asymmetry at an early stage and a stereoselective, chelation-controlled reductive cyclization of 8, using samarium diiodide as the reducing agent. The methodology promises to be applicable to the synthesis of a wide range of analogs capable of being converted to potent antimalarial agents related to artemisinin (1).