Discovery of a Novel Series of Imipridone Compounds as Homo sapiens Caseinolytic Protease P Agonists with Potent Antitumor Activities In Vitro and In Vivo
and to inhibit ERKs phosphorylation, without acting directly on microtubules and tubuline. Its theoretical recognition against duplex and quadruplexDNA structures have been compared to experimental thermodynamic measurements and by molecular modeling investigation leading to putative binding modes. Taken together these findings contribute to define this compound as potential Multitarget-Directed Ligands
Design, Synthesis, and Synergistic Activity of Eight-Membered Oxabridge Neonicotinoid Analogues
作者:Xiao Zhang、Yiping Wang、Zhiping Xu、Xusheng Shao、Zewen Liu、Xiaoyong Xu、Peter Maienfisch、Zhong Li
DOI:10.1021/acs.jafc.0c04786
日期:2021.3.17
cis-configuration neonicotinoid (IPPA08) exhibited specific synergistic activity toward neonicotinoid insecticides. In this study, we synthesized a series of structural analogues of IPPA08 by converting the pyridyl moiety of IPPA08 into phenyl groups, via facile double-Mannich condensation reactions between nitromethylenecompounds and glutaraldehyde. All of the oxabridged neonicotinoidcompounds were found
The invention provides novel substituted azaheterocyclic compounds according to Formula (I), their manufacture and use for the treatment of hyperproliferative diseases, such as cancer.
本发明提供了根据式(I)的新型取代的氮杂杂环化合物,其制备和用于治疗高增殖性疾病,如癌症。
Semisynthetic Amides of Polyene Antibiotic Natamycin
作者:Anna N. Tevyashova、Svetlana S. Efimova、Alexander I. Alexandrov、Eslam S.M.O. Ghazy、Elena N. Bychkova、Svetlana E. Solovieva、Georgy B. Zatonsky、Natalia E. Grammatikova、Lyubov G. Dezhenkova、Eleonora R. Pereverzeva、Elena B. Isakova、Olga S. Ostroumova、Olga A. Omelchuk、Vera V. Muravieva、Marina M. Krotova、Tatiana V. Priputnevich、Andrey E. Shchekotikhin
DOI:10.1021/acsinfecdis.2c00237
日期:2023.1.13
ergosterol versus cholesterol containing vesicles, a ratio that characterizes the efficacy and safety of natamycin and its derivatives was determined (EI, efficiency index). Ability of all tested semisynthetic natamycines to prevent proliferation of the yeast Candida spp. cells was comparable or even slightly higher to those of parent antibiotic. Interestingly, amide 8 was more potent than natamycin (1)
Semisynthetic Amides of Amphotericin B and Nystatin A1: A Comparative Study of In Vitro Activity/Toxicity Ratio in Relation to Selectivity to Ergosterol Membranes
ergosterol than cholesterol. Notably, the high nephro- and hemolytic toxicity of polyenes and their low solubility in water have led to efforts to improve their properties. We present the synthesis of newamphotericin and nystatin amides and a comparativestudy of the effects of identical modifications of AmB and Nys on the relationship between their structure and properties. Generally, increases in
多烯抗真菌剂两性霉素 B (AmB) 已使用 60 多年,并且由于其广泛的抗真菌活性和较低的耐药率,仍然是系统性真菌病的有价值的临床治疗方法。关于它究竟如何杀死真菌细胞尚无共识,但可以肯定的是,AmB 和密切相关的制霉菌素 (Nys) 可以在膜中形成孔隙,并且对麦角甾醇的亲和力高于对胆固醇的亲和力。值得注意的是,多烯的高肾毒性和溶血毒性及其在水中的低溶解度导致人们努力改善其性能。我们介绍了新的两性霉素和制霉菌素酰胺的合成,并比较研究了 AmB 和 Nys 的相同修饰对其结构和性质之间关系的影响。一般来说,活性/毒性比率的增加与麦角甾醇与含胆固醇膜的选择性透化比率的增加非常一致。我们还表明,引入的修饰对突变酵母菌株的敏感性有影响,麦角甾醇生物合成对所研究的多烯发生了改变,表明对中间麦角甾醇前体的不同亲和力。三种新型水溶性制霉菌素衍生物在安全性方面表现出显着改善,被选为有前途的药物开发候选物。