Total stepwise solid-phase synthesis of peptide-oligonucleotide conjugates using side-chain Boc/tBu protecting groups
A practical strategy for the total stepwise solid-phase synthesis of peptide-oligonucleotide conjugates was developed. In this strategy, the Boc/tBu protecting groups are utilized for the side chains of Trp, His, Arg, Asp, and Glu, and is deprotected in borate buffer at 90 degrees C to avoid depurin...
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Published in | Chemical communications (Cambridge, England) Vol. 59; no. 39; pp. 5839 - 5842 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
CAMBRIDGE
Royal Soc Chemistry
11.05.2023
Royal Society of Chemistry |
Subjects | |
Online Access | Get full text |
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Summary: | A practical strategy for the total stepwise solid-phase synthesis of peptide-oligonucleotide conjugates was developed. In this strategy, the Boc/tBu protecting groups are utilized for the side chains of Trp, His, Arg, Asp, and Glu, and is deprotected in borate buffer at 90 degrees C to avoid depurination of the oligonucleotide caused by strong acid treatment. The advantage of this strategy is that the abovementioned amino acids are readily available in the market and the side reaction of deguanidination of the Arg residue can be avoided. This side-chain Boc/tBu protection strategy will expand the applicability of total stepwise synthesis in the preparation of peptide-oligonucleotide conjugates. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1359-7345 1364-548X |
DOI: | 10.1039/d3cc00868a |