Organometallic Nucleosides: Synthesis and Biological Evaluation of Substituted Dicobalt Hexacarbonyl 2′‐Deoxy‐5‐oxopropynyluridines
作者:Renata Kaczmarek、Dariusz Korczyński、Karolina Królewska‐Golińska、Kraig A. Wheeler、Ferman A. Chavez、Agnieszka Mikus、Roman Dembinski
DOI:10.1002/open.201700168
日期:2018.3
Reactions of dicobalt octacarbonyl [Co2(CO)8] with 2′‐deoxy‐5‐oxopropynyluridines and related compounds gave dicobalt hexacarbonyl nucleoside complexes (83–31 %). The synthetic outcomes were confirmed by X‐ray structure determination of dicobalt hexacarbonyl 2′‐deoxy‐5‐(4‐hydroxybut‐1‐yn‐1‐yl)uridine, which exhibits intermolecular hydrogen bonding between a modified base and ribose. The electronic structure
We present the unprecedented hyperpolarization of the cancer-targeting aptamer AS1411 viaparahydrogen. For that, we screened for suitable parahydrogen-induced polarization (PHIP) labels, performed solid phase synthesis to incorporate the label into AS1411 and adapted the polarity of DNA via PEGylation to enable efficient, selective hydrogenation in organic solvents without affecting canonical nucleotides
我们通过对氢展示了癌症靶向适体 AS1411 前所未有的超极化。为此,我们筛选了合适的对位氢诱导极化 (PHIP) 标记,进行固相合成以将标记整合到 AS1411 中,并通过聚乙二醇化调整 DNA 的极性,以在不影响规范核苷酸的情况下在有机溶剂中实现高效、选择性氢化。