Total Synthesis of (-)-Maximiscin

Area of Science:

• Organic Chemistry
• Synthetic Chemistry
• Natural Product Synthesis

Background:

• (-)-maximiscin is a complex natural product with a mixed biosynthetic origin.
• Its intricate structure presents significant synthetic challenges.
• Previous syntheses were lengthy or lacked efficiency.

Purpose of the Study:

• To report a short, enantioselective synthesis of (-)-maximiscin.
• To showcase novel synthetic strategies for complex molecule construction.
• To demonstrate an efficient route from readily available starting materials.

Main Methods:

• Retrosynthetic analysis focused on ideality and efficiency.
• Convergent synthesis strategy for the central pyridone core.
• Application of C-H functionalization and radical retrosynthesis.
• Preparation of building blocks from shikimate and mesitylene feedstocks.

Main Results:

• A concise and enantioselective route to (-)-maximiscin was achieved.
• The synthesis featured an efficient, late-stage convergent coupling for pyridone formation.
• Key strategies included hidden symmetry recognition and advanced functionalization techniques.

Conclusions:

• The developed synthesis provides an efficient pathway to (-)-maximiscin.
• This work highlights the power of modern synthetic methodologies for complex targets.
• The route is amenable to scale-up due to its efficiency and use of accessible materials.