Property-Based Optimization of Hydroxamate-Based γ-Lactam HDAC Inhibitors to Improve Their Metabolic Stability and Pharmacokinetic Profiles
摘要:
Hydroxamate-based HDAC inhibitors have promising anticancer activities but metabolic instability and poor pharmacokinetics leading to poor in vivo results. QSAR and PK studies of HDAC inhibitors showed that a gamma-lactam core and a modified cap group, including halo, alkyl, and alkoxy groups with various carbon chain linkers, improved HDAC inhibition and metabolic stability. The biological properties of the gamma-lactam HDAC inhibitors were evaluated; the compound designated 8f had potent anticancer activity and high oral bioavailability.
Lanthanide‐catalyzed alkynyl exchange through C−C single‐bondcleavage assisted by a secondary amino group is reported. A lanthanide amido complex is proposed as a key intermediate, which undergoes unprecedented reversible β‐alkynyl elimination followed by alkynyl exchange and imine reinsertion. The in situ homo‐ and cross‐dimerization of the liberated alkyne can serve as an additional driving force
Lactam-Based HDAC Inhibitors for Anticancer Chemotherapy: Restoration of RUNX3 by Posttranslational Modification and Epigenetic Control
作者:Misun Cho、Eunhyun Choi、Jae Hyun Kim、Hwan Kim、Hwan Mook Kim、Jang Ik Lee、Ki-Chul Hwang、Hyun-Jung Kim、Gyoonhee Han
DOI:10.1002/cmdc.201300393
日期:2014.3
transcription factor 3 (RUNX3) are regulated by histone deacetylase (HDAC). HDAC inhibition alters epigenetic and posttranslational stability of RUNX3, leading to tumor suppression. However, HDACinhibitors can nonselectively alter global gene expression through chromatin remodeling. Thus, lactam‐based HDACinhibitors were screened to identify potent protein stabilizers that maintain RUNX3 stability by acetylation
Electrochemically Mediated Carboxylative Cyclization of Allylic/Homoallylic Amines with CO<sub>2</sub> at Ambient Pressure
作者:Yong-Zhou Pan、Qiang Xia、Jin-Xiu Zhu、Ying-Chun Wang、Ying Liang、Hengshan Wang、Hai-Tao Tang、Ying-Ming Pan
DOI:10.1021/acs.orglett.2c03377
日期:2022.11.11
resource. We report a method for the synthesis of pharmacologically active 2-oxazolidinones by reacting CO2 with allylicamines. As opposed to previous addition reactions, the unsaturated double bonds are preserved. Thus, the product is more plastic and easier to use for subsequent structural modification. Furthermore, this method can also be applied to the synthesis of six-membered heterocycles (1,3-oxazinan-2-ones)
CO 2是一种重要的C1资源。我们报告了一种通过使 CO 2与烯丙基胺反应来合成具有药理学活性的 2-恶唑烷酮的方法。与之前的加成反应相反,不饱和双键得以保留。因此,该产品更具可塑性,更易于用于后续的结构改造。此外,该方法还可以应用于六元杂环(1,3-oxazinan-2-ones)的合成以及低浓度CO 2的参与,具有一定的实用性。
A general intermolecular polarity-mismatched carboamination reaction of unactivated alkenes with unactivated alkyl halides has been developed. A series of nonactivated alkyl-substituted aziridines were constructed in exclusive regioselectivity. The dual polarity-mismatched mechanism might be involved.
Photo-induced intramolecular arene-olefin meta-cycloaddition of 5-phenyl-fluorinated-pent-1-enes
作者:Xiao-Chuan Guo、Qing-Yun Chen
DOI:10.1016/s0022-1139(99)00042-1
日期:1999.7
A series of fluorinated angular and linear triquinanes and their aza-analogues have been synthesized by photo-induced intramolecular meta-cycloaddition of 5-phenyl-fluorinated-pent-1-enes. (C) 1999 Elsevier Science S.A. All rights reserved.