390427-07-3Relevant academic research and scientific papers
Colorimetric anion sensing by porphyrin-based anion receptors
Lee, Chanhyo,Lee, Dong Hoon,Hong, Jong-In
, p. 8665 - 8668 (2001)
Porphyrin derivatives 1-4 with H-bond donors and/or color-reporting chromophoric unit were synthesized and studied as anion-binding receptors. 1 and 2 exhibited binding selectivity in the order of AcO->H2PO4-?Cl-, Br-, I- in DMSO-d6. Color change tests with several different anions for colorimetric anion sensors (3 and 4) resulted in selectivities for F-, AcO- and H2PO4- in organic solution. While 1 and 2 exhibited good selectivities for AcO- and H2PO4-, 3 and 4 showed a dramatic color change for F- due to increased interaction with a nitrophenylazo phenolic OH group.
Continued Exploration of Trifunctional Alkyl 4-Chloro-2-diazo-3-oxobutanoates: Streamlined Entry into [1,2,3]Triazolo[5,1- c ][1,4]benzoxazines and [1,2,3]Triazolo[5,1- c ][1,4]benzoxazepines
Budeev, Anton V.,Kantin, Grigory,Dar'In, Dmitry,Krasavin, Mikhail
, p. 2155 - 2166 (2021/02/22)
Further exploration of the trifunctional character of previously introduced alkyl 4-chloro-2-diazo-3-oxobutanoates in reactions with N -protected substituted o -aminophenols followed by deprotection provided a convenient entry into [1,2,3]triazolo[5,1- c ][1,4]benzoxazines, which are of high medicinal importance, as documented in the literature. The same approach applied to N -protected substituted o -(aminomethyl)phenols afforded [1,2,3]triazolo[5,1- c ][1,4]benzoxazepines, which are practically unexplored compounds from a medicinal chemistry perspective. The syntheses start with S N 2-type alkylation of the phenol. Removal of the protecting group triggers imine formation followed by Wolff 1,2,3-triazole synthesis.
Preparation method of salicylamine acetate
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Paragraph 0063-0065, (2020/12/08)
The invention discloses a preparation method of salicylamine acetate. The method comprises the following steps: (1) performing amino protection on salicylaldehyde with a structure shown in formula 1 to obtain a compound with a structure shown in formula 2
Preparation method of salicylamine acetate
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Paragraph 0045-0058, (2019/06/30)
The invention discloses a preparation method of salicylamine acetate. The method comprises the following steps: (1) protecting the amino groups of salicylaldehyde having a structure represented by formula 1 to obtain a compound having a structure represented by formula 2; and (2) carrying out acid hydrolysis on the compound of the formula 2, and then reacting the acid-hydrolyzed compound with acetic acid to obtain the salicylamine acetate.
Emergent Self-Assembly Pathways to Multidimensional Hierarchical Assemblies using a Hetero-Seeding Approach
Liu, Yin,Gong, Yanjun,Guo, Yongxian,Xiong, Wei,Zhang, Yifan,Zhao, Jincai,Che, Yanke,Manners, Ian
supporting information, p. 13484 - 13490 (2019/10/28)
The controlled formation of complex and functional 1-, 2-, and 3D hierarchical assemblies from molecular building blocks represents a key current challenge. Herein, we report the use of a seeded growth approach for a series of perylenediimide-based molecules (PDIs 1–4) to access otherwise inaccessible self-assembly pathways that yield complex hierarchical structures. The key to the new approach is to use hetero-seeds which possess a different composition and morphology from that of the molecular building block. For example, a nanotube seed (from PDI 3) and a microribbon seed (from PDI 4) were found to initiate different self-assembly pathways for PDI 1, which normally assembles to yield nanocoils. This led to the formation of unprecedented 3D scroll-like and scarf-like hierarchical nanostructures, respectively. Also, the hetero-seeds from PDI 3 initiate hidden self-assembly pathways of PDI 2 to generate 1D tubular heterojunctions. Significantly, this new strategy offers new opportunities to create emergent and functional hierarchical and complex structures from small molecule precursors.
Probing the Existence of a Metastable Binding Site at the β2-Adrenergic Receptor with Homobivalent Bitopic Ligands
Gaiser, Birgit I.,Danielsen, Mia,Marcher-R?rsted, Emil,R?pke J?rgensen, Kira,Wróbel, Tomasz M.,Frykman, Mikael,Johansson, Henrik,Br?uner-Osborne, Hans,Gloriam, David E.,Mathiesen, Jesper Mosolff,Sejer Pedersen, Daniel
, p. 7806 - 7839 (2019/09/07)
Herein, we report the development of bitopic ligands aimed at targeting the orthosteric binding site (OBS) and a metastable binding site (MBS) within the same receptor unit. Previous molecular dynamics studies on ligand binding to the β2-adrenergic receptor (β2AR) suggested that ligands pause at transient, less-conserved MBSs. We envisioned that MBSs can be regarded as allosteric binding sites and targeted by homobivalent bitopic ligands linking two identical pharmacophores. Such ligands were designed based on docking of the antagonist (S)-alprenolol into the OBS and an MBS and synthesized. Pharmacological characterization revealed ligands with similar potency and affinity, slightly increased β2/β1AR-selectivity, and/or substantially slower β2AR off-rates compared to (S)-alprenolol. Truncated bitopic ligands suggested the major contribution of the metastable pharmacophore to be a hydrophobic interaction with the β2AR, while the linkers alone decreased the potency of the orthosteric fragment. Altogether, the study underlines the potential of targeting MBSs for improving the pharmacological profiles of ligands.
LIBRARIES OF DIVERSE MACROCYCLIC COMPOUNDS AND METHODS OF MAKING AND USING THE SAME
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Paragraph 0330; 0354; 0355; 0356, (2019/06/07)
The present disclosure relates to novel macrocyclic compounds and libraries thereof that are useful as research tools for drug discovery efforts. This disclosure also relates to methods of preparing these compounds and libraries and methods of using these libraries, such as in high throughput screening. In particular, these libraries are useful for evaluation of bioactivity at existing and newly identified pharmacologically relevant targets, including G protein-coupled receptors, nuclear receptors, enzymes, ion channels, transporters, transcription factors, protein-protein interactions and nucleic acid-protein interactions. As such, these libraries can be applied to the search for new pharmaceutical agents for the treatment and prevention of a range of medical conditions.
LIBRARIES OF PYRIDINE-CONTAINING MACROCYCLIC COMPOUNDS AND METHODS OF MAKING AND USING THE SAME
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Paragraph 00207, (2019/01/11)
The present disclosure relates to novel pyridine-containing macrocyclic compounds and libraries thereof that are useful as research tools for drug discovery efforts. This disclosure also relates to methods of preparing these compounds and libraries and methods of using these libraries, such as in high throughput screening. In particular, these libraries are useful for evaluation of bioactivity at existing and newly identified pharmacologically relevant targets, including G protein-coupled receptors, nuclear receptors, enzymes, ion channels, transporters, transcription factors, protein-protein interactions and nucleic acid-protein interactions. As such, these libraries can be applied to the search for new pharmaceutical agents for the treatment and prevention of a range of medical conditions.
LIBRARIES OF HETEROARYL-CONTAINING MACROCYCLIC COMPOUNDS AND METHODS OF MAKING AND USING THE SAME
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Paragraph 00215, (2017/04/11)
The present disclosure relates to novel macrocyclic compounds and libraries thereof containing heteroaryl moieties that are useful as research tools for drug discovery efforts. The present disclosure also relates to methods of preparing these compounds and libraries and methods of using these libraries, such as in high throughput screening. In particular, these libraries are useful for evaluation of bioactivity at existing and newly identified pharmacologically relevant targets, including G protein-coupled receptors, nuclear receptors, enzymes, ion channels, transporters, transcription factors, protein-protein interactions and nucleic acid-protein interactions. As such, these libraries can be applied to the search for new pharmaceutical agents for the treatment and prevention of a range of medical conditions.
