Total synthesis of (-)-okilactomycin.

Area of Science:

• Organic Chemistry
• Synthetic Chemistry
• Natural Product Synthesis

Background:

• (-)-Okilactomycin is a complex natural product with potential biological activities.
• Efficient synthetic routes are crucial for accessing and studying such molecules.

Purpose of the Study:

• To develop a highly convergent and efficient synthetic strategy for (-)-okilactomycin.
• To showcase key synthetic transformations for complex molecule construction.

Main Methods:

• Diastereoselective oxy-Cope rearrangement and oxidation sequence.
• Petasis-Ferrier union and rearrangement tactic.
• Ring-closing metathesis (RCM) for macrocycle formation.

Main Results:

• A highly convergent synthesis of (-)-okilactomycin was successfully executed.
• The strategy-level oxy-Cope rearrangement provided excellent diastereoselectivity.
• An efficient RCM reaction was employed to construct the 13-membered macrocyclic core.

Conclusions:

• The described synthetic route is efficient and convergent.
• The employed methodologies are valuable for the synthesis of complex macrocyclic compounds.
• This synthesis provides a viable pathway to (-)-okilactomycin.