Enantioselective Synthesis of (−)-LL-C10037α from Benzoquinone
摘要:
The enantioselective total synthesis of the Streptomyces metabolite (-)-LL-C10037 alpha has been accomplished in 10 steps and 20% overall yield. An early chiral intermediate was resolved with Candida rugosa lipase to provide (+)-5 with an enantiomeric excess greater than or equal to 98%. The synthesis is notable in that no protecting groups are required and that all carbons in the core structure of LL-C10037 alpha are derived from the readily available p-benzoquinone.