Fmoc-based solid-phase synthesis of adenylylated peptides using diester-type adenylylated amino acid derivatives
摘要:
Phosphodiester-type adenylylated (AMPylated) Ser, Thr, and Tyr derivatives were developed for Fmoc solid phase peptide synthesis of AMPylated peptides. One-pot/sequential reaction consisting of condensation of an N-nonprotected adenosine derivative and Fmoc-Ser/Thr/Tyr-OAllyl using allyl-N,N-diisopropylchlorophosphoramidite and subsequent oxidation with m-chloroperbenzoic acid gave phosphotriester-type AMPylated Ser/Thr/Tyr derivatives. After Pd(0)-mediated deprotection of allyl groups, the resulting phosphodiester-type AMPylated Ser/Thr/Tyr derivatives were successfully incorporated into peptides by standard Fmoc solid phase peptide synthesis without significant side reactions including dehydroalanine formation. (C) 2012 Elsevier Ltd. All rights reserved.
Pentopyranosyl oligonucleotide systems. Part 11: systems with shortened backbones: (?)-β-ribopyranosyl-(4′→3′)- and (?)-α-lyxopyranosyl-(4′→3′)-oligonucleotides
作者:H Wippo
DOI:10.1016/s0968-0896(01)00220-6
日期:2001.9
>3')-oligonucleotide system-a member of a pentopyranosyloligonucleotide family containing a shortened backbone-is capable of cooperative base-pairing and of cross-pairing with DNA and RNA. In contrast, corresponding (D)-beta-ribopyransoyl-(4'-->3')-oligonucleotides do not show base-pairing under similar conditions. We conclude that oligonucleotidesystems can violate the 'six-bonds-per-backbone-unit'
Amino Acid Building Blocks for Fmoc Solid-Phase Synthesis of Peptides Phosphocholinated at Serine, Threonine, and Tyrosine
作者:Michael F. Albers、Christian Hedberg
DOI:10.1021/jo302587g
日期:2013.3.15
important for bacterial pathogenesis. Here, we describe the first straightforward synthetic strategy for peptides containing phosphocholinated serine, threonine, or tyrosine residues using preformed functional aminoacid building blocks, fully compatible with standard Fmoc solid-phase peptidesynthesis.
Linker nucleoside, and production and use of the same
申请人:Nanogen Recognomics GmbH
公开号:US06699978B1
公开(公告)日:2004-03-02
The present invention relates to a linker nucleoside, its preparation and use for the covalent bonding of biomolecules to oligonucleotides, in particular p-RNA oligonucleotides.
本发明涉及一种连接核苷,其制备和用于将生物分子与寡核苷酸,特别是p-RNA寡核苷酸共价结合的用途。
Amino Acid Building Blocks for Efficient Fmoc Solid-Phase Synthesis of Peptides Adenylylated at Serine or Threonine
作者:Michael F. Albers、Bart van Vliet、Christian Hedberg
DOI:10.1021/ol2024696
日期:2011.11.18
building block based (non-interassembly) synthesis of peptides containing adenylylated serine and threonine residues is described. Key features include final global acidolytic protective group removal as well as full compatibility with standard Fmoc solid-phase peptidesynthesis (SPPS). The described Thr-AMP SPPS-building block has been employed in the synthesis of the Thr-adenylylated sequence of human
Qualitative conformational analysis of the entirety of conceivable hexo- and pentopyranosyloligonucleotidesystems derived from the diastereoisomeric aldohexoses (CH2O)6 and aldopentoses (CH2O)5 predicts the existence of a variety of pairing systems which have not been experimentally investigated so far. In particular, the analysis foresees the existence of a ribopyranosyl isomer of RNA (‘p-RNA’)