One-Pot Selective Homodimerization/Hydrogenation Strategy for Sequential Dicarba Bridge Formation

Area of Science:

• Organic Chemistry
• Catalysis
• Peptide Chemistry

Background:

• Interlocked dicarba bridges are important structural motifs in peptide science.
• Existing methods for their installation lack regioselectivity and chemoselectivity.

Purpose of the Study:

• To develop a novel, one-pot, regioselective, and chemoselective synthesis of 2,7-diaminosuberic acid derivatives.
• To enable the incorporation of dicarba bridges into peptide sequences.

Main Methods:

• Utilized a one-pot reaction involving an alkyne, a cobalt-carbonyl protected alkyne, and an alkene.
• Employed ruthenium-catalyzed metathesis and homogeneous hydrogenation catalysis.

Main Results:

• Successfully synthesized three distinct 2,7-diaminosuberic acid derivatives.
• Demonstrated a chemoselective and regioselective synthetic strategy.

Conclusions:

• The developed methodology offers an efficient route to dicarba bridged amino acid derivatives.
• This approach facilitates the construction of complex peptide structures with novel functionalities.