Tag-Assisted Liquid-Phase Oligonucleotide Synthesis: Toward a Convergent Approach.

Area of Science:

• Organic Chemistry
• Biochemistry
• Synthetic Biology

Background:

• Soluble support (tag)-assisted liquid-phase methods are established for peptide synthesis but are nascent for oligonucleotide synthesis.
• Convergent synthesis of oligonucleotides requires selective tag cleavage while maintaining protecting groups.

Purpose of the Study:

• To develop an effective soluble support-assisted liquid-phase oligonucleotide synthesis method.
• To introduce a novel, easily prepared tag for this purpose.
• To enable selective tag cleavage under mild conditions for fragment preparation.

Main Methods:

• Synthesis of a novel tag from methyl gallate without column chromatography.
• Application of the tag in liquid-phase oligonucleotide synthesis.
• Development of mild reducing conditions for selective tag cleavage.

Main Results:

• An effective soluble support-assisted liquid-phase oligonucleotide synthesis was achieved.
• A novel tag, readily prepared from methyl gallate, was successfully utilized.
• Selective tag cleavage was demonstrated under mild reducing conditions, preserving protecting groups.

Conclusions:

• The developed method offers an effective approach for liquid-phase oligonucleotide synthesis.
• The novel tag and cleavage conditions are crucial for enabling convergent oligonucleotide synthesis strategies.