Dedication to Professor Yong-Qiang Tu on the occasion of his 60th birthday
Abstract
In this Account, we give an overview of our recent efforts towards the total synthesis of two marine natural products: bryostatin 8 and (–)-exiguolide. The central theme is to highlight the power of the organosilane strategy, which was characterized with our geminal bis(silanes)-based methodologies for constructing the unique exocyclic enoate-substituted pyran rings.
1 Introduction
2 Background of Bryostatins and (–)-Exiguolide
3 Constructing the B-Ring of Bryostatins
4 Total Synthesis of (–)-Exiguolide via an Organosilane Strategy
5 Constructing the C-Ring of Bryostatins
6 Total Synthesis of Bryostatin 8
7 Conclusion
Key words
total synthesis - macrolides - organosilane - Prins cyclization - Brook rearrangement