[EN] NOVEL COMPOUNDS AND COMPOSITION FOR TARGETED THERAPY OF KIDNEY-ASSOCIATED CANCERS<br/>[FR] NOUVEAUX COMPOSÉS ET COMPOSITION POUR LA THÉRAPIE CIBLÉE DE CANCERS ASSOCIÉS AU REIN
申请人:MICURX PHARMACEUTICALS INC
公开号:WO2021150792A1
公开(公告)日:2021-07-29
The present invention provides therapeutic compounds of the following formula I: or pharmaceutically acceptable salts, hydrates, or solvates thereof that are therapeutic or anticancer agents, pharmaceutical compositions containing them, methods for their use, and methods for preparing these compounds.
Modification of the binding affinity of peptide nucleic acids (PNA). PNA with extended backbones consisting of 2-aminoethyl-β-alanine or 3-aminopropylglycine units
作者:Birgitte Hyrup、Michael Egholm、Marc Rolland、Peter E. Nielsen、Rolf H. Berg、Ole Buchardt
DOI:10.1039/c39930000518
日期:——
The binding affinity between peptidenucleicacids (PNA) and DNA is reduced by incorporation of PNA units with extended backbones.
肽核酸(PNA)与DNA之间的结合亲和力通过将PNA单元与扩展的骨架结合而降低。
Thermodynamic studies of a series of homologous HIV-1 TAR RNA ligands reveal that loose binders are stronger Tat competitors than tight ones
作者:Lise Pascale、Stéphane Azoulay、Audrey Di Giorgio、Laura Zenacker、Marc Gaysinski、Pascal Clayette、Nadia Patino
DOI:10.1093/nar/gkt237
日期:2013.6
stronger Tat competitors than those forming tight ones, and thermal denaturation studies demonstrated that loose complexes are more stable than tight ones. This could be correlated to the fact that loose and tightligands induce distinct RNA conformational changes as revealed by circular dichroism experiments, although nuclear magnetic resonance (NMR) experiments showed that the TAR binding site is the
RNA 是一个主要的药物靶点,但调节 RNA 功能的小分子的设计仍然是一个巨大的挑战。在这种情况下,研究了一系列结构同源的“聚酰胺氨基酸”(PAA)作为 HIV-1 反式激活反应(TAR)RNA 配体。一项广泛的热力学研究揭示了焓-熵补偿现象的发生,导致所有 PAA 的 TAR 亲和力非常接近。然而,根据它们的结构,它们的结合模式和它们与 Tat 片段竞争的能力有很大不同。令人惊讶的是,与 TAR 形成松散复合物的 PAA 比形成紧密复合物的 PAA 更强,热变性研究表明松散复合物比紧密复合物更稳定。这可能与圆二色性实验揭示的松散和紧密配体诱导不同的 RNA 构象变化有关,尽管核磁共振 (NMR) 实验表明 TAR 结合位点在所有情况下都是相同的。最后,一些松散的 PAA 也显示出对 HIV 感染细胞的有希望的抑制活性。总之,这些结果有助于更好地理解 RNA 相互作用模式,这对于设计相关 RNA
作者:Ryan A. Ivanovich、Dilan E. Polat、André M. Beauchemin
DOI:10.1002/adsc.201701046
日期:2017.12.19
Oxygen‐substituted isocyanates (O‐isocyanates) are rare isocyanates with a reported propensity to trimerize, a side‐reaction that severely limited their use in synthesis. Herein, the development of blocked (masked) O‐isocyanate precursors that form this reactive intermediate in situ provide controlled reactivity, allowing the first examples of cascade reactions involving O‐isocyanates. Complex hydroxylamine‐derived
Triplex‐Forming Peptide Nucleic Acids with Extended Backbones
作者:Vipin Kumar、Nikita Brodyagin、Eriks Rozners
DOI:10.1002/cbic.202000432
日期:2020.12
PNAs form higher‐stability triple helices with dsRNA than DNA. Structural considerations suggested that extending the PNA backbone by one carbon atom might reverse this preference in favor of DNA; however, experiments disproved this hypothesis. The studies suggested that PNA has an inherent preference for forming A‐form triple‐helical structures and, hence, has higher affinity for RNA than DNA.
PNA 与 dsRNA 形成比 DNA 稳定性更高的三螺旋。结构考虑表明,将 PNA 主链延长一个碳原子可能会逆转这种偏好,有利于 DNA;然而,实验反驳了这个假设。研究表明,PNA 具有形成 A 型三螺旋结构的内在偏好,因此对 RNA 的亲和力高于 DNA。