Tag: M.W=300-350

Weber, Karen C. published the artcileThe use of classification methods for modeling the antioxidant activity of flavonoid compounds, Synthetic Route of 69097-99-0, the publication is Journal of Molecular Modeling (2006), 12(6), 915-920, database is CAplus and MEDLINE.

A study using two classification methods (SDA and SIMCA) was carried out in this work with the aim of investigating the relationship between the structure of flavonoid compounds and their free-radical-scavenging ability. In this work, we report the use of chemometric methods (SDA and SIMCA) able to select the most relevant variables (steric, electronic, and topol.) responsible for this ability. The results obtained with the SDA and SIMCA methods agree perfectly with our previous model, in which we used other chemometric methods (PCA, HCA and KNN) and are also corroborated with exptl. results from the literature. This is a strong indication of how reliable the selection of variables is.

Journal of Molecular Modeling published new progress about 69097-99-0. 69097-99-0 belongs to tetrahydropyran, auxiliary class Other Aliphatic Heterocyclic,Benzene,Phenol,Ether,Inhibitor, name is 5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chroman-4-one, and the molecular formula is C7H13ClNNaO5S, Synthetic Route of 69097-99-0.

Referemce:
https://en.wikipedia.org/wiki/Tetrahydropyran,
Tetrahydropyran – an overview | ScienceDirect Topics

Ficarra, Paola published the artcileDirect enantiomeric separation of flavanones by high performance liquid chromatography using various chiral stationary phases, Synthetic Route of 69097-99-0, the publication is Planta Medica (1995), 61(2), 171-6, database is CAplus and MEDLINE.

The performance of four chiral liquid chromatog. columns (Chiralcel OA, OJ, OC, OD) was studied with respect to the enantioseparation of flavanones and some derivatives The effect of mobile phase composition on the retention time and stereoselectivity was studied. A good enantioseparation (α up to 1.45) was achieved for most of the racemates. Further, the elution order of the enantiomers from the chiral stationary phases has been determined by using a CD based detection system.

Planta Medica published new progress about 69097-99-0. 69097-99-0 belongs to tetrahydropyran, auxiliary class Other Aliphatic Heterocyclic,Benzene,Phenol,Ether,Inhibitor, name is 5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chroman-4-one, and the molecular formula is C16H14O6, Synthetic Route of 69097-99-0.

Referemce:
https://en.wikipedia.org/wiki/Tetrahydropyran,
Tetrahydropyran – an overview | ScienceDirect Topics

Visalli, Giuseppa published the artcileBergamot Juice Extract Inhibits Proliferation by Inducing Apoptosis in Human Colon Cancer Cells, Synthetic Route of 69097-99-0, the publication is Anti-Cancer Agents in Medicinal Chemistry (2014), 14(10), 1402-1413, database is CAplus and MEDLINE.

Colorectal cancer (CRC) is a leading cause of cancer mortality in the industrialized world, second to lung cancer. A lot of evidences highlight that a diet rich in fruits and vegetables may reduce the risk of some types of cancer including CRC. In this study we demonstrate that Citrus bergamia juice extracts (BJe) reduces CRC cell growth by multiple mechanisms. Low BJe concentrations inhibit MAPKs pathway and alter apoptosis-related proteins, that in turn induce cell cycle arrest and apoptosis in HT-29 cells. Instead, high concentrations of BJe induce oxidative stress causing DNA damage. Our study highlights the role of BJe as modulator of cell apoptosis in CRC cells and strengthens our previous hypothesis that the flavonoid fraction of bergamot juice may play a role as anti-cancer drug.

Anti-Cancer Agents in Medicinal Chemistry published new progress about 69097-99-0. 69097-99-0 belongs to tetrahydropyran, auxiliary class Other Aliphatic Heterocyclic,Benzene,Phenol,Ether,Inhibitor, name is 5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chroman-4-one, and the molecular formula is C12H15ClO3, Synthetic Route of 69097-99-0.

Referemce:
https://en.wikipedia.org/wiki/Tetrahydropyran,
Tetrahydropyran – an overview | ScienceDirect Topics

Nishino, Chikao published the artcileAntibacterial activity of flavonoids against Staphylococcus epidermidis, a skin bacterium, Related Products of tetrahydropyran, the publication is Agricultural and Biological Chemistry (1987), 51(1), 139-43, database is CAplus.

An investigation was carried out on Okinawan plants to find antibacterial compounds against a human skin bacterium, S. epidermidis, which causes acne vulgaris. A medicinal plant, Elaeagnus glabra, showed significant activity, and (-)-epigallocatechin (I) was isolated from the plant as an antibacterial constituent against the bacterium. Twenty-six flavonoids related to I were tested for antibacterial activity, galangin (II) being the most active species. Although a structure-activity study was attempted, no clear structural factor was deduced.

Agricultural and Biological Chemistry published new progress about 69097-99-0. 69097-99-0 belongs to tetrahydropyran, auxiliary class Other Aliphatic Heterocyclic,Benzene,Phenol,Ether,Inhibitor, name is 5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chroman-4-one, and the molecular formula is C16H14O6, Related Products of tetrahydropyran.

Referemce:
https://en.wikipedia.org/wiki/Tetrahydropyran,
Tetrahydropyran – an overview | ScienceDirect Topics

Ali, Imran published the artcileChiral HPLC separation and simulation studies of two chiral centered bis-imino flavans (Schiff base), Product Details of C16H14O6, the publication is Microchemical Journal (2022), 107429, database is CAplus.

The biol. activities of flavanone and hesperetin were enhanced by synthesizing Schiff base types mols. (bis-imino-flavans; BHF4, BHF8 and BHF10) by combining flavanone and hesperetin. These mols. were characterized by spectroscopic studies. The four enantiomers of these mols. were separated by HPLC due to the presence of two chiral centers in these mols. The best separation was achieved with ChiralcelOD-H column under normal mobile phase mode. BHF4 and BHF8 racemates separated completely with k₁, k₂, k₃ & k₄; α₁, α₂ & α₃ and Rs₁, Rs₂ & Rs₃ values of 3.00, 3.55, 3.80 & 4.25; 1.18, 1.07 & 1.12 and 1.26, 1.10 & 1.00 for BHF4 while these values were 5.70, 6.30, 9.08 & 9.83; 1.11, 1.44 & 1.08 and 1.08, 1.37, 6.35 and 1.71. On the other hand, BHF10 could not sep. completely. The free energy (ΔG) was calculated for the best separation conditions, and the correlation accurately shows the favorable range of the intercalated length. The chiral mechanism was proposed based on the carbon lengths between flavanone and hesperetin mols. in bis-imino-flavans. The modeling results confirmed the binding order of the enantiomers in BHF4 > BHF8 > BHF10; with maximum bing of SR-enantiomers. The synthesized and separated Schiff base types bis-imino-flavans were evaluated in urine samples with satisfactory results.

Microchemical Journal published new progress about 69097-99-0. 69097-99-0 belongs to tetrahydropyran, auxiliary class Other Aliphatic Heterocyclic,Benzene,Phenol,Ether,Inhibitor, name is 5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chroman-4-one, and the molecular formula is C16H14O6, Product Details of C16H14O6.

Referemce:
https://en.wikipedia.org/wiki/Tetrahydropyran,
Tetrahydropyran – an overview | ScienceDirect Topics

Williams, G. M. published the artcilePhenol and phenol derivatives, HPLC of Formula: 69097-99-0, the publication is WHO Food Additives Series (2011), 207-253, database is CAplus.

The Committee evaluated 13 addnl. flavoring agents belonging to the group of phenol and phenol derivatives used as flavoring agents, which was evaluated previously. The addnl. substances included an ester of phenol, two polyphenols, a phenol glucoside, alkyl-, alkenyl- or aryl-substituted phenols or their esters, alkoxyphenols or their esters and phenol derivatives with alkyl side-chains containing a ketone function. Generally, the Committee concluded that these 13 flavoring agents, which are additions to the group of phenol and phenol derivatives evaluated previously, would not give rise to safety concerns at current estimated dietary exposures.

WHO Food Additives Series published new progress about 69097-99-0. 69097-99-0 belongs to tetrahydropyran, auxiliary class Other Aliphatic Heterocyclic,Benzene,Phenol,Ether,Inhibitor, name is 5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chroman-4-one, and the molecular formula is C15H14O3, HPLC of Formula: 69097-99-0.

Referemce:
https://en.wikipedia.org/wiki/Tetrahydropyran,
Tetrahydropyran – an overview | ScienceDirect Topics

Yu, Bo published the artcileNetwork pharmacology-based identification for therapeutic mechanisms of Dangguikushen pill in acne vulgaris, Application In Synthesis of 69097-99-0, the publication is Dermatologic Therapy (2020), 33(6), e14061, database is CAplus and MEDLINE.

The Dangguikushen (DGKS) pill is a proprietary traditional Chinese medicine that has shown superior efficacy in the treatment of acne vulgaris for many years. A network pharmacol.-based anal. was performed to explore the potential anti-acne compounds, core therapeutic targets, and the main pathways, involved in the DGKS pill bioactivity. The matching results between the predicted targets of the DGKS pill and the well-known targets of acne vulgaris were collected, followed by network establishment using protein-protein interaction (PPI) data. Cytoscape was utilized to analyze the network and screen the core targets. Furthermore, the Database for Annotation, Visualization and Integrated Discovery (DAVID), and ClueGO were used for the enrichment anal. of the Kyoto Encyclopedia of Genes and Genomics (KEGG) pathways and Gene Ontol. biol. processes (GO-BP). Finally, the “compound-target-pathway” network was constructed. This approach identified 19 active compounds, 46 therapeutic targets, and 12 core therapeutic targets of the DGKS pill. The biol. processes were primarily related to reactive oxygen species (ROS) metabolic process, gland morphogenesis, and female gonad development. The DGKS pill was significantly associated with eight pathways including the PI3K-Akt, TNF, NF-kappa B, and p53 signaling pathways. DGKS pill might have a synergistic effect on the inhibition of excessive sebaceous lipogenesis and sebocyte differentiation, and likewise, anti-inflammatory effects via the different signaling pathways (PI3K-Akt, TNF, NF-kappa B, and p53).

Dermatologic Therapy published new progress about 69097-99-0. 69097-99-0 belongs to tetrahydropyran, auxiliary class Other Aliphatic Heterocyclic,Benzene,Phenol,Ether,Inhibitor, name is 5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chroman-4-one, and the molecular formula is C17H37NO3, Application In Synthesis of 69097-99-0.

Referemce:
https://en.wikipedia.org/wiki/Tetrahydropyran,
Tetrahydropyran – an overview | ScienceDirect Topics

Ye, Xian-wen published the artcileStudy on the mechanism of treating COVID-19 with Shenqi Wan based on network pharmacology, Application of 5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chroman-4-one, the publication is Drug Development and Industrial Pharmacy (2021), 47(8), 1279-1289, database is CAplus and MEDLINE.

Through the method of network pharmacol., the active components and targets of Shenqi Wan (SQW) were excavated, the relationship with novel Coronavirus pneumonia (COVID-19) was discussed, and the possible mechanism of SQW in the treatment of COVID-19 was revealed from the aspects of multicomponents, multitargets, and multipathways. Firstly, the active components of SQW were screened from traditional Chinese medicine systems pharmacol. database and anal. platform and the 2020 edition of Chinese Pharmacopeia, and the related targets of the components were obtained. Then the disease targets related to COVID-19 were screened from GeneCards and Online Mendelian Inheritance in Man. Venny was used to map the relationship between component-target and disease-target, and String was used to analyze the interaction of common targets. The network was constructed and analyzed by Cytoscape, the function of Gene ontol. (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) genes was enriched by Metascape, and the mol. docking was verified by CB-Dock. Finally, 45 active components of SQW were obtained, and 72 potential targets were related to COVID-19, angiotensin-converting enzyme 2 (ACE2), interleukin (IL)-6, nitric oxide synthase (NOS3) and, C-reactive protein (CRP),may be the key targets. GO enrichment of 1715 projects, such as lipopolysaccharide stress response, active oxygen metabolism, pos. regulation of cell migration, and other GO enrichment. About 136 KEGG pathways, tumor necrosis factor signaling pathway, IL-17 signaling pathway, hypoxia-inducible factor 1-α signaling pathway were obtained. Mol. docking showed that kaempferol, quercetin, luteolin, astragaloside, calyx isoflavone glucoside, matrine, and other COVID-19-related targets such as ACE2, chymotrypsin-like protease (3CLpro), papain-like protease (PLpro), prostaglandin-endoperoxide synthase 2 (PTGS2) have good binding ability. According to the above results, it is suggested that SQW may play a role in the treatment of COVID-19 by directly or indirectly combining kaempferol, quercetin, and luteolin with ACE2, 3CLpro, PLpro, and PTGS2 to regulate multiple biol. functions and signaling pathways.

Drug Development and Industrial Pharmacy published new progress about 69097-99-0. 69097-99-0 belongs to tetrahydropyran, auxiliary class Other Aliphatic Heterocyclic,Benzene,Phenol,Ether,Inhibitor, name is 5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chroman-4-one, and the molecular formula is C14H14N2O2, Application of 5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chroman-4-one.

Referemce:
https://en.wikipedia.org/wiki/Tetrahydropyran,
Tetrahydropyran – an overview | ScienceDirect Topics

Gosav, Steluta published the artcileMultivariate study of flavonoids active against Caco-2 colon carcinoma, Product Details of C16H14O6, the publication is Romanian Reports in Physics (2014), 66(2), 411-426, database is CAplus.

A multivariate study involving flavonoids with activity against human colon carcinoma Caco-2 is reported. The data set is composed of 26 flavonoids which can be separated, depending on their EC50 value i.e. the half maximal effective concentration, into active and less active compounds Our purpose was to transform the chem. structure of each compound into a set of numbers, and to correlate them with the biol. activity establishing a qual./quant. relationship between calculated mol. descriptors and antiproliferative activity. The geometries of the studied flavonoids were fully optimized employing the D. Functional Theory (DFT) with the hybrid functional B3LYP in conjunction with the 6-31G(d) basis set. For each optimized structure we computed a set of parameters (1,356 descriptors) which characterizes the mol. from structural, topol., steric, electronic, hydrophobic, etc. points of view. Using the Fisher’s weight and the correlation matrix, we reduced the number of descriptors from 1,356 to 15. Aiming to investigate which mol. descriptors would be more efficient in classifying flavonoid compounds according to their degree of anticancer activity, we applied two unsupervised learning methods, Principal Component Anal. (PCA) and Cluster Anal. (CA), and a supervised learning method, Stepwise Discriminant Anal. (SDA). Using the 15 selected descriptors as input, the PCA and SDA techniques supplied us with the following parameters as common relevant descriptors: C-16, EN, Mor08e, HATS8m. The reliability of the structure-activity relationship model is verified using the cross-validation technique, the percentage of correct classifications being of 92.31 %.

Romanian Reports in Physics published new progress about 69097-99-0. 69097-99-0 belongs to tetrahydropyran, auxiliary class Other Aliphatic Heterocyclic,Benzene,Phenol,Ether,Inhibitor, name is 5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chroman-4-one, and the molecular formula is C16H14O6, Product Details of C16H14O6.

Referemce:
https://en.wikipedia.org/wiki/Tetrahydropyran,
Tetrahydropyran – an overview | ScienceDirect Topics

Wistuba, Dorothee published the artcileδ-Cyclodextrin as novel chiral probe for enantiomeric separation by electromigration methods, Synthetic Route of 69097-99-0, the publication is Electrophoresis (2006), 27(21), 4359-4363, database is CAplus and MEDLINE.

Native δ-CD was employed as chiral selector in CE and MEKC. To study the potential of the enantiodiscriminating properties of δ-CD, neg. charged 5-dimethylamino-1-naphthalene-sulfonyl (dansyl)-, 2,4-dinitrophenyl (DNP)- and FMOC-derivatives of several amino acids, , flava-nones and three pos. charged drugs were selected as testing samples. Enantioresoln. factors up to 4.82 were observed The results were compared with those achieved by the conventional running buffer additives α-, β- and γ-CDs. For several examples a steady increase of enantioresoln. with increasing degree of oligomerization was detected.

Electrophoresis published new progress about 69097-99-0. 69097-99-0 belongs to tetrahydropyran, auxiliary class Other Aliphatic Heterocyclic,Benzene,Phenol,Ether,Inhibitor, name is 5,7-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)chroman-4-one, and the molecular formula is C15H14Cl2S2, Synthetic Route of 69097-99-0.

Referemce:
https://en.wikipedia.org/wiki/Tetrahydropyran,
Tetrahydropyran – an overview | ScienceDirect Topics