期刊
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
卷 26, 期 9, 页码 2194-2197出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmcl.2016.03.070
关键词
Nucleic acid; Conjugate; Synthesis; GalNAc
A convenient method for the synthesis of several triantennary GalNAc clusters based on a nitromethanetrispropionic acid core was developed. The synthetic approach involves pentafluorophenolic ester intermediates which can be used in a one-pot, seven reaction procedure to quickly prepare a variety of triantennary GalNAc conjugated ASOs. The GalNAc clusters were conjugated to the 5'-end of an antisense oligonucleotide and evaluated for activity in primary mouse hepatocytes where they showed similar to 10-fold improvement in activity. (C) 2016 Elsevier Ltd. All rights reserved.
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