Month: October 2022

Giuliani, Marta; Faroldi, Federica; Morelli, Laura; Torre, Enza; Lombardi, Grazia; Fallarini, Silvia; Sansone, Francesco; Compostella, Federica published the artcile< Exploring calixarene-based clusters for efficient functional presentation of Streptococcus pneumoniae saccharides>, Related Products of 34637-22-4, the main research area is glycocalixarene mannosamine conformational antigen vaccine; aminoglycoside calixarene cluster preparation Streptococcus pneumoniae capsular polysaccharide antibody; Calixarenes; Multivalent ligands; Saccharide antigens; Serotype 19F; Streptococcus pneumoniae.

Calixarenes are promising scaffolds for an efficient clustered exposition of multiple saccharide antigenic units. Herein we report the synthesis and biol. evaluation of a calix[6]arene functionalized with six copies of the trisaccharide repeating unit of Streptococcus pneumoniae (SP) serotype 19F. This system has demonstrated its ability to efficiently inhibit the binding between the native 19F capsular polysaccharide and anti-19F antibodies, despite a low number of exposed saccharide antigens, well mimicking the epitope presentations in the polysaccharide. The calix[6]arene mobile scaffold has been selected for functionalization with SP 19F repeating unit after a preliminary screening of four model glycocalixarenes, functionalized with N-acetyl mannosamine, and differing in the valency and/or conformational properties. This work is a step forward towards the development of new fully synthetic calixarenes comprising small carbohydrate antigens as potential carbohydrate-based vaccine scaffolds.

Bioorganic Chemistry published new progress about Streptococcus pneumoniae. 34637-22-4 belongs to class esters-buliding-blocks, and the molecular formula is C11H15NO3, Related Products of 34637-22-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Liu, Tingting; Zhao, Min; Zhang, Yumeng; Qiu, Zhaozhao; Zhang, Yixin; Zhao, Chunjie; Wang, Miao published the artcile< Pharmacokinetic-pharmacodynamic modeling analysis and anti-inflammatory effect of Wangbi capsule in the treatment of adjuvant-induced arthritis>, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is Wangbi Capsule anti inflammatory rheumatoid arthritis pharmacokinetic pharmacodynamic; Wangbi capsule; adjuvant-induced arthritis; pharmacokinetic-pharmacodynamic model; rheumatoid arthritis; traditional Chinese medicine.

Clin., Wangbi Capsule (WBC) is widely used in the treatment of Rheumatoid arthritis (RA) because of its remarkable therapeutic effect. To reveal the mechanism, a pharmacokinetic-pharmacodynamic (PK-PD) model was developed for the first time to assess the relationship between time-concentration (dose)-effect. Freund’s Complete Adjuvant was used to induce the adjuvant-induced arthritis model. Multi-indexes were used to evaluate the therapeutic effect and an S-Imax PK-PD model was established based on the concentrations of osthole, 5-O-methylvisamminoside, cimifugin, albiflorin, paeoniflorin and icariin and the levels of interleukin-1β and prostaglandin E2 using a two-compartment PK model together with a PD model with an effect-site compartment. The results suggest that WBC can treat RA by regulating the levels of prostaglandin E2 and interleukin-1β . For the PK-PD model, the parameters indicated that WBC had a large safety margin and all six bioactive ingredients of WBC have therapeutic effects on RA. Among them icariin, osthole and 5-O-methylvisamminoside may be the main effective substances. This study provided a scientific basis for further study of population pharmacokinetics / population pharmacodynamics (PPK/PPD), to develop a reasonable administration plan and improve individualized drug therapy.

Biomedical Chromatography published new progress about Arthritis. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Parzuchowski, Pawel; Maminski, Mariusz L. published the artcile< Poly-(3-ethyl-3-hydroxymethyl)oxetanes-synthesis and adhesive interactions with polar substrates>, Application of C19H34O2, the main research area is ethyl hydroxymethyl oxetane ring opening polymerization polar substrate; adhesive interaction; adhesion; hot melt adhesive; polyoxetanes.

Hyperbranched polyoxetanes are a relatively new class of polymers. These are branched polyethers that are synthesized from oxetanes-four-member cyclic ethers bearing hydroxymethyl groups-via ring-opening polymerization Four series of polyoxetanes were synthesized from 3-ethyl-3-(hydroxymethyl)oxetane and 1,1,1-tris(hydroxymethyl)propane as a core mol. Reagents ratios ranged from 1:5 to 1:50, theor. molar mass ranged from 714 g/mol to 5942 g/mol, and dispersities ranged from 1.77 to 3.75. The morphol. of the macromols. was investigated by a matrix-assisted laser desorption/ionization time of flight technique. The polyoxetanes’ adhesive interactions with polar materials were analyzed and provided results as follows: the work of adhesion was 101-105 mJ/m2, the bond-line tensile shear strengths were 0.39-1.32 MPa, and there was a brittle fracture mode within the polymer. The findings confirmed a good adhesion to polar substrates, but further research on polyoxetane modifications toward a reduction of brittleness is necessary.

Polymers (Basel, Switzerland) published new progress about Adhesion, physical. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application of C19H34O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Majumdar, K. C.; Muhuri, S. published the artcile< Regioselective synthesis of polyheterocyclic scaffolds by sequential [3,3] sigmatropic rearrangements and pyridine hydrotribromide mediated heterocyclization>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is aryloxypropynyloxy methylpyranone preparation thionation Claisen rearrangement; aryloxymethyloxopyranothiopyran preparation sigmatropic rearrangement enolization pyridine hydrotribromide regioselective heterocyclization; tetracyclic polyhetero scaffold bromo methyltrihydropyranothiopyranobenzopyranone preparation.

A number of tetracyclic polyhetero scaffolds, e.g., I, have been regioselectively synthesized in 70-75% yield from 4-[(3-aryloxy-2-propynyl)oxy]-6-methyl-pyran-2-ones via thionation of the lactone carbonyl, sequential Claisen rearrangements and pyridine hydrotribromide mediated heterocyclization.

Journal of Heterocyclic Chemistry published new progress about [3,3]-Sigmatropic rearrangement. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ding, Zekun; Luo, Xiaosheng; Ma, Yibin; Chen, Heshan; Qiu, Saifeng; Sun, Guosheng; Zhang, Wan; Yu, Chao; Wu, Zhenliang; Zhang, Jianbo published the artcile< Eco-friendly synthesis of 5-hydroxymethylfurfural (HMF) and its application to the Ferrier-rearrangement reaction>, SDS of cas: 4098-06-0, the main research area is hydroxymethylfurfural green synthesis; Ferrier rearrangement synthesis hydroxymethylfurfural unsaturated glycoside.

5-Hydroxymethylfurfural was conveniently synthesized by dehydration of D-fructose in a good yield. To further build bioactive derivatives from 5-hydroxymethylfurfural, 2,3-unsaturated glycosides were directly obtained through the Ferrier-rearrangement reaction of various glycals. Noticeably, a solid acid catalyst was successfully applied in the preparation of 5-hydroxymethylfurfural and then recycled to promote the Ferrier-rearrangement reaction, making it possible to achieve two steps of reaction in an eco-friendly manner through the simple process.

Journal of Carbohydrate Chemistry published new progress about Antitumor agents. 4098-06-0 belongs to class esters-buliding-blocks, and the molecular formula is C12H16O7, SDS of cas: 4098-06-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Pajak, Beata published the artcile< Looking for the Holy Grail-Drug Candidates for Glioblastoma Multiforme Chemotherapy>, Computed Properties of 112-63-0, the main research area is review glioblastoma multiforme chemotherapy; clinical trials; drug candidates; glioblastoma multiforme (GBM); glycolysis inhibitors; immunomodulatory action; kinases inhibitors.

A review. Glioblastoma multiforme (GBM) is the deadliest and the most heterogeneous brain cancer. The median survival time of GBM patients is approx. 8 to 15 mo after initial diagnosis. GBM development is determined by numerous signaling pathways and is considered one of the most challenging and complicated-to-treat cancer types. Standard GBM therapy consist of surgery followed by radiotherapy or chemotherapy, and combined treatment. Current standard of care (SOC) does not offer a significant chance for GBM patients to combat cancer, and the selection of available drugs is limited. For almost 20 years, there has been only one drug, Temozolomide (TMZ), approved as a first-line GBM treatment. Due to the limited efficacy of TMZ and the high rate of resistant patients, the implementation of new chemotherapeutics is highly desired. However, due to the unique properties of GBM, many challenges still need to be overcome before reaching a ‘breakthrough’. This review article describes the most recent compounds introduced into clin. trials as drug candidates for GBM chemotherapy.

Biomedicines published new progress about Chemotherapy. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Computed Properties of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Doebelin, Christelle; Patouret, Remi; Garcia-Ordonez, Ruben D.; Chang, Mi Ra; Dharmarajan, Venkatasubramanian; Novick, Scott; Ciesla, Anthony; Campbell, Sean; Solt, Laura A.; Griffin, Patrick R.; Kamenecka, Theodore M. published the artcile< Identification of potent RORβ modulators: Scaffold variation>, Application In Synthesis of 112-63-0, the main research area is aminothiophene preparation retinoid related orphan receptor RORbeta modulator; Aminothiophene; Nuclear receptor; RORβ; Selective ligand.

The authors sought to develop RORβ-selective probe mols. to investigate the function of the receptor in vitro and in vivo and its role in the pathophysiol. of disease. To accomplish this, the authors modified a potent dual RORβ/RORγ inverse agonist from the primary literature with the goal of improving selectivity for RORβ vs. RORγ. Truncation of the Western portion of the mol. ablated activity at RORγ and led to a potent series of RORβ modulators. Continued exploration of this series investigated alternate replacement cores for the aminothiazole ring. Numerous suitable replacements were found during the course of the authors’ SAR investigations and are reported herein.

Bioorganic & Medicinal Chemistry Letters published new progress about Acylation. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application In Synthesis of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ma, Mengying; Cai, Haoran; Xu, Chenlu; Huang, Renzhi; Wang, Shurong; Pan, Huilin; Hu, Yong-Sheng published the artcile< Engineering Solid Electrolyte Interface at Nano-Scale for High-Performance Hard Carbon in Sodium-Ion Batteries>, Reference of 112-63-0, the main research area is carbon engineering solid electrolyte interface nanoscale sodium ion battery.

Engineering the structure and chem. of solid electrolyte interface (SEI) on electrode materials is crucial for rechargeable batteries. Using hard carbon (HC) as a platform material, a correlation between Na+ storage performance, and the properties of SEI is comprehensively explored. It is found that a “”good”” SEI layer on HC may not be directly associated with certain kinds of SEI components, such as NaF and Na2O. Whereas, arranging nano SEI components with refined structures constructs the foundation of “”good”” SEI that enables fast Na+ storage and interface stability of HC in Na-ion batteries. A layer-by-layer SEI on HC with inorganic-rich inner layer and tolerant organic-rich outer flexible layer can facilitate excellent rate and cycling life. Besides, SEI layer as the gate for Na+ from electrolyte to HC electrode can modulate interfacial crystallog. structures of HC with pillar-solvent that function as “”pseudo-SEI”” for fast and stable Na+ storage in optimal 1 M NaPF6-TEGDME electrolytes. Such a layer-by-layer SEI combined with a “”pseudo-SEI”” layer for HC enables an outstanding rate of 192 mAh g-1 at 2 C and stable cycling over 1100 cycles at 0.5 C. This study provides valuable guidance to improve the electrochem. performance of electrode materials through regulation of SEI in optimal electrolytes.

Advanced Functional Materials published new progress about Correlation energy. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Reference of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Denavit, Vincent; Laine, Danny; Bouzriba, Chahrazed; Shanina, Elena; Gillon, Emilie; Fortin, Sebastien; Rademacher, Christoph; Imberty, Anne; Giguere, Denis published the artcile< Stereoselective Synthesis of Fluorinated Galactopyranosides as Potential Molecular Probes for Galactophilic Proteins: Assessment of Monofluorogalactoside-LecA Interactions>, Name: (2R,3R,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate, the main research area is stereoselective galactopyranoside galactophilic protein monofluorogalactoside LecA interaction; crystal structure; LecA; NMR spectroscopy; TROSY NMR; carbohydrates; fluorinated glycoside.

The replacement of hydroxyl groups by fluorine atoms on hexopyranoside scaffolds may allow access to invaluable tools for studying various biochem. processes. As part of ongoing activities toward the preparation of fluorinated carbohydrates, a systematic investigation involving the synthesis and biol. evaluation of a series of mono- and polyfluorinated galactopyranosides is described. Various monofluorogalactopyranosides, a trifluorinated, and a tetrafluorinated galactopyranoside have been prepared using a Chiron approach. Given the scarcity of these compounds in the literature, in addition to their synthesis, their biol. profiles were evaluated. Firstly, the fluorinated compounds were investigated as antiproliferative agents using normal human and mouse cells in comparison with cancerous cells. Most of the fluorinated compounds showed no antiproliferative activity. Secondly, these carbohydrate probes were used as potential inhibitors of galactophilic lectins. The first transverse relaxation-optimized spectroscopy (TROSY) NMR experiments were performed on these interactions, examining chem. shift perturbations of the backbone resonances of LecA, a virulence factor from Pseudomonas aeruginosa. Moreover, taking advantage of the fluorine atom, the 19F NMR resonances of the monofluorogalactopyranosides were directly monitored in the presence and absence of LecA to assess ligand binding. Lastly, these results were corroborated with the binding potencies of the monofluorinated galactopyranoside derivatives by isothermal titration calorimetry experiments Analogs with fluorine atoms at C-3 and C-4 showed weaker affinities with LecA as compared to those with the fluorine atom at C-2 or C-6. This research has focused on the chem. synthesis of “”drug-like”” low-mol.-weight inhibitors that circumvent drawbacks typically associated with natural oligosaccharides.

Chemistry – A European Journal published new progress about Antitumor agents. 4098-06-0 belongs to class esters-buliding-blocks, and the molecular formula is C12H16O7, Name: (2R,3R,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Dubowchik, Gene M.; Michne, Jodi A.; Zuev, Dmitry; Schwartz, Wendy; Scola, Paul M.; James, Clint A.; Ruediger, Edward H.; Pin, Sokhom S.; Burris, Kevin D.; Balanda, Lynn A.; Gao, Qi; Wu, Dedong; Fung, Lawrence; Fiedler, Tracey; Browman, Kaitlin E.; Taber, Matthew T.; Zhang, Jie published the artcile< 2-Arylaminothiazoles as high-affinity corticotropin-Releasing factor 1 receptor (CRF1R) antagonists: synthesis, binding studies and behavioral efficacy>, Electric Literature of 112-63-0, the main research area is antidepressant thiazolemethanamine thiazolecarboxamide cyclopropylmethyl propyl preparation; structure activity antidepressant anxiolytic thiazolemethanamine thiazolecarboxamide cyclopropylmethyl propyl preparation; anxiolytic thiazolemethanamine thiazolecarboxamide cyclopropylmethyl propyl preparation; corticotropin releasing factor receptor thiazolemethanamine thiazolecarboxamide cyclopropylmethyl propyl preparation; human antidepressant thiazolemethanamine thiazolecarboxamide cyclopropylmethyl propyl preparation.

2-Arylamino-4-trifluoromethyl-5-aminomethylthiazoles represent a novel series of high-affinity corticotropin releasing factor-1 receptor (CRF1R) antagonists that are prepared in three steps in good overall yields. Herein, binding SAR as well as anxiolytic activity of an exemplary compound, N-(cyclopropylmethyl)-N-propyl-2-[(2,4,6-trichlorophenyl)amino]-4-(trifluoromethyl)-5-thiazolemethanamine (I), in a mouse canopy model were reported. Other compounds thus prepared and tested included N-(cyclopropylmethyl)-4-methyl-N-propyl-2-[(2,4,6-trichlorophenyl)amino]-5-thiazolecarboxamide, N,N-bis(2-methoxyethyl)-4-methyl-2-[(2,4,6-trichlorophenyl)amino]-5-thiazolecarboxamide, 2-[(2-chloro-4,6-dimethylphenyl)methylamino]-N-(cyclopropylmethyl)-N-propyl-4-(trifluoromethyl)-5-thiazolemethanamine, 2-[(2-chloro-4,6-dimethylphenyl)amino]-N-(cyclopropylmethyl)-N-propyl-4-(trifluoromethyl)-5-thiazolemethanamine. The activity of I was compared to that of an analog, N-(cyclopropylmethyl)-N-propyl-2-[(2,4,6-trichlorophenyl)amino]-4-(trifluoromethyl)-5-oxazolemethanamine.

Bioorganic & Medicinal Chemistry Letters published new progress about Antidepressants. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Electric Literature of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics