Volume 128, Issue 35 pp. 10519-10523
Zuschrift

N-Linked Glycosyl Auxiliary-Mediated Native Chemical Ligation on Aspartic Acid: Application towards N-Glycopeptide Synthesis

Hua Chai

Hua Chai

School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371 Singapore

These authors contributed equally to this work.

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Dr. Kim Le Mai Hoang

Dr. Kim Le Mai Hoang

School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371 Singapore

These authors contributed equally to this work.

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Minh Duy Vu

Minh Duy Vu

School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371 Singapore

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Dr. Kalyan Pasunooti

Dr. Kalyan Pasunooti

School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551 Singapore

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Prof. Dr. Chuan-Fa Liu

Prof. Dr. Chuan-Fa Liu

School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551 Singapore

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Prof. Dr. Xue-Wei Liu

Corresponding Author

Prof. Dr. Xue-Wei Liu

School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371 Singapore

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First published: 22 July 2016
Citations: 4

Abstract

A practical approach towards N-glycopeptide synthesis using an auxiliary-mediated dual native chemical ligation (NCL) has been developed. The first NCL connects an N-linked glycosyl auxiliary to the thioester side chain of an N-terminal aspartate oligopeptide. This intermediate undergoes a second NCL with a C-terminal thioester oligopeptide. Mild cleavage provides the desired N-glycopeptide.

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