Synthesis, Biological Evaluation, and Three-Dimensional Quantitative Structure−Activity Relationship Study of Small-Molecule Positive Modulators of Adrenomedullin
摘要:
Adrenomedullin (AM) is a peptide hormone implicated in blood pressure regulation and in the pathophysiology of several diseases such as hypertension, cancer, diabetes, and renal disorders, becoming an interesting new target for the development of drugs. In a recent high-throughput screening study, a positive modulator with a bistriazole structure has been identified.(1) In this work, a new series of structurally related compounds has been synthesized by reaction of phenoxyacetic acid with the corresponding dihydrazide, followed by treatment of the formed bisoxadiazoles with benzylamine. The affinity toward AM of the lead compound, and a structurally related family obtained from the small-molecule NCI library together with the synthesized series, has been determined. A three-dimensional quantitative structure-activity relationship (3D-QSAR) study and conformational and molecular dynamics simulations have shown that the presence of a free NH and a phenyl group is essential for the interaction of these compounds with AM.
cyclohexane‐derived hydrazides, their monomers can self‐assemble to form gels throughintermolecularhydrogenbonds and dipole‐dipole interactions. Significantly, conjugated phthalhydrazide can self‐aggregate into planar and circular trimers throughintermolecularhydrogenbonds and then self‐assemble to form gels throughintermolecular π–π stacking interactions. It is interesting that these simple gelators
A toolbox for controlling the properties and functionalisation of hydrazone-based supramolecular hydrogels
作者:Jos M. Poolman、Chandan Maity、Job Boekhoven、Lars van der Mee、Vincent A. A. le Sage、G. J. Mirjam Groenewold、Sander I. van Kasteren、Frank Versluis、Jan H. van Esch、Rienk Eelkema
DOI:10.1039/c5tb01870f
日期:——
In situ multicomponent hydrogelator formation enables straightforward chemical functionalisation of supramolecular hydrogels.
在原位多组分水凝胶生成促进了超分子水凝胶的简便化学功能化。
Controllable Self-Assembly of Macrocycles in Water for Isolating Aromatic Hydrocarbon Isomers
作者:Guangcheng Wu、Cai-Yun Wang、Tianyu Jiao、Huangtianzhi Zhu、Feihe Huang、Hao Li
DOI:10.1021/jacs.8b01651
日期:2018.5.9
A series of purely organic macrocycles and catenanes can be self-assembled by condensing a cationic bisaldehyde compound with a series of dihydrazide linkers in weakly acidic water. On one hand, the macrocycles could be generated as the predominant products under the condition of low concentration or less polar media. In the presence of a guest template, these macrocycles could even be obtained in close
A Strategy to Synthesize Molecular Knots and Links Using the Hydrophobic Effect
作者:Fabien B. L. Cougnon、Kenji Caprice、Marion Pupier、Antonio Bauzá、Antonio Frontera
DOI:10.1021/jacs.8b05220
日期:2018.10.3
hydrophobic surface area in contact with water. Therefore, the size, geometry, and rigidity of the initial buildingblocks can be exploited to control the formation of a specific topology. We illustrate the validity of this concept with the syntheses of a Hopf link, a Solomon link, and a trefoilknot. This latter molecule, whose self-assembly is templated by halides, binds iodide with high affinity in
Selective hydrazinolysis of diesters is catalyzed by PS lipase. This enzyme is an efficient catalyst for the preparation of N-aminosuccinimide derivatives.