Author: Jessica.F

《Single crystal X-ray structure for the disordered two independent molecules of novel isoflavone: synthesis, hirshfeld surface analysis, inhibition and docking studies on IKKβ of 3-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-6,7-dimethoxy-4H-chromen-4-one》 was published in Crystals in 2020. These research results belong to Shin, Soon Young; Lee, Young Han; Lim, Yoongho; Lee, Ha Jin; Lee, Ji Hye; Yoo, Miri; Ahn, Seunghyun; Koh, Dongsoo. Formula: C5H13NO2 The article mentions the following:

The structure of the isoflavone compound, I was elucidated by 2D-NMR spectra, mass spectrum and single crystal X-ray crystallog. Compound I was crystallized in the monoclinic space group P21/c with the cell parameters; a = 12.0654(5) Å, b = 11.0666(5) Å, c = 23.9550(11) Å, β = 101.3757(16)°, V = 3135.7(2) Å3, and Z = 8. The asym. unit of compound I consists of two independent mols. 5I and 5II. Both mols. exhibit the disorder of each methylene group present in their 1,4-dioxane rings with relative occupancies of 0.599(10) (5I) and 0.812(9) (5II) for the major component A, and 0.401(10) (5I) and 0.188(9) (5II) for the minor component B, resp. Each independent mol. revealed remarkable discrepancies in bond lengths, bond angles and dihedral angles in the disordered regions of 1,4-dioxane rings. The common feature of the mols. 5I and 5II were a chromone ring and a benzodioxin ring, which are more tilted towards each other in 5I than in 5II. An addnl. difference between the mols. was seen in the relative disposition of two methoxy substituents. In the crystal, the mol. 5II forms inversion dimers which were linked into chains along an a-axis direction by intermol. C-H···O interactions. Addnl. C-H···O hydrogen bonds connected the mols. 5I and 5II each other to form a three-dimensional network. Hirshfeld surface anal. evaluated the relative intermol. interactions which contribute to each crystal structure 5I and 5II. Western blot anal. demonstrated that compound 5 inhibited the TNFα-induced phosphorylation of IKKα/β, resulting in attenuating further downstream NF-κB signaling. A mol. docking study predicted the possible binding of compound I to the active site of IKKβ. Compound I showed an inhibitory effect on the clonogenicity of HCT116 human colon cancer cells. These results suggest that compound I was used as a platform for the development of an anti-cancer agent targeting IKKα/β. In the experimental materials used by the author, we found N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5Formula: C5H13NO2)

N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5) belongs to anime. Amine, any member of a family of nitrogen-containing organic compounds that is derived, either in principle or in practice, from ammonia (NH3). Naturally occurring amines include the alkaloids, which are present in certain plants; the catecholamine neurotransmitters (i.e., dopamine, epinephrine, and norepinephrine); and a local chemical mediator, histamine, that occurs in most animal tissues.Formula: C5H13NO2

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《A hemicyanine-based “”turn-on”” fluorescent probe for the selective detection of Cu2+ ions and imaging in living cells》 was written by Li, Bai; Kou, Jiejian; Mei, Huihui; Gu, Xin; Wang, Minghui; Xie, Xinmei; Xu, Kuoxi. Recommanded Product: 673-22-3 And the article was included in Analytical Methods in 2020. The article conveys some information:

A novel hemicyanine-based fluorescent probe was developed for the fast, selective, and reversible detection of Cu2+ ions with “”turn-on”” fluorescence response in the aqueous solution The sensing mode was demonstrated through fluorescence, UV-vis, HRMS, 1H NMR, and DFT calculations The probe was successfully used for the imaging of Cu2+ ions in living cells. In the experimental materials used by the author, we found 2-Hydroxy-4-methoxybenzaldehyde(cas: 673-22-3Recommanded Product: 673-22-3)

2-Hydroxy-4-methoxybenzaldehyde(cas: 673-22-3) is employed in the synthesis of Schiff base ligand. It is applied as a reactant in the synthesis of LPA1R antagonists used in the inhibition of LPA-induced proliferation and contraction of normal human lung fibroblasts. Also used in the synthesis of tyrosine kinase 6 proteinase inhibitors.Recommanded Product: 673-22-3

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《Highly Regioselective Synthesis of Multisubstituted Pyrroles via Ag-Catalyzed [4+1C]insert Cascade》 was written by Luo, Kaixiu; Mao, Shuai; He, Kun; Yu, Xianglin; Pan, Junhong; Lin, Jun; Shao, Zhihui; Jin, Yi. SDS of cas: 4637-24-5 And the article was included in ACS Catalysis in 2020. The article conveys some information:

An efficient [4+1C]insert approach to the coupling of enaminones with donor/acceptor or donor/donor carbenes by AgOTf catalyzed C-C bond carbenoid formal insertion/cyclization/[1,5]-shift cascade reaction was successfully developed, providing distinct chemo- and regio-selective multisubstituted pyrroles I [R = Me, Ph, 2-thienyl, etc.; R1 = Ph, 2-furanyl, 2-naphthyl, etc.; R2 = Et, cyclopropyl, Ph, etc.; R3 = CO2Me, CO2Et, Ph, etc.]. The plausible reaction mechanism involved two catalytic cycles, in the first one, silver ions regioselectively catalyze the C-C bond insertion reaction and in second one, silver ions chemo- and regio-selectively control the cyclization and [1,5]-shift reactions. This method not only provided convenience and applies atom economy in the synthesis multisubstituted pyrroles but also presents an entry point for further pyrrole diversification via facile modification of resulting 4-H-pyrrole products, as displayed by a short formal synthesis of the natural product lamellarin L. In addition to this study using N,N-Dimethylformamide Dimethyl Acetal, there are many other studies that have used N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5SDS of cas: 4637-24-5) was used in this study.

N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5) belongs to anime. Amine, any member of a family of nitrogen-containing organic compounds that is derived, either in principle or in practice, from ammonia (NH3). Naturally occurring amines include the alkaloids, which are present in certain plants; the catecholamine neurotransmitters (i.e., dopamine, epinephrine, and norepinephrine); and a local chemical mediator, histamine, that occurs in most animal tissues.SDS of cas: 4637-24-5

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Wu, Yongdi; Liu, Na; Qi, Meifang; Qiao, Huihao; Lu, Xuelian; Ma, Li; Zhou, Yirong; Zhang, Fang-Lin published their research in Organic Letters in 2021. The article was titled 《Monodentate Transient Directing Group Assisted Ruthenium(II)-Catalyzed Direct ortho-C-H Imidation of Benzaldehydes for Diverse Synthesis of Quinazoline and Fused Isoindolinone》.Related Products of 135-02-4 The article contains the following contents:

2-Fluoro-5-(trifluoromethyl)aniline was found to be a suitable monodentate transient directing group (MonoTDG) to enable Ru(II)-catalyzed intermol. direct ortho-C(sp2)-H imidation of benzaldehydes. N-Tosyloxyphthalimide was used as an alternative azide-free amidation reagent to achieve high efficiency and good functional group tolerance. Moreover, the reaction could be enlarged to gram scale, and the amidated product could be readily converted into useful quinazoline and fused isoindolinone scaffolds by one-step derivatization. In the part of experimental materials, we found many familiar compounds, such as 2-Methoxybenzaldehyde(cas: 135-02-4Related Products of 135-02-4)

2-Methoxybenzaldehyde(cas: 135-02-4) is used as a flavor agent in foods including nonalcoholic/alcoholic beverages, baked goods, chewing gum, confections, frozen dairy, fruit ices, hard/soft candy, instant coffee, tea, Jams, jellies, and milk products. It also has been used to obtain good enantioselectivities using Cu(OAc)(2)-bis(oxazolines) via hydrogen bonding in asymmetric Henry reaction.Related Products of 135-02-4

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Marijan, Sandra; Mastelic, Angela; Markotic, Anita; Rezic-Muzinic, Nikolina; Vucenovic, Nikolina; Barker, David; Pilkington, Lisa I.; Reynisson, Johannes; Culic, Vedrana Cikes published their research in Medicines in 2021. The article was titled 《Thieno[2,3-b]Pyridine Derivative Targets Epithelial, Mesenchymal and Hybrid CD15s+ Breast Cancer Cells》.COA of Formula: C5H13NO2 The article contains the following contents:

The adhesion of cancer cells to vascular endothelium is a critical process in hematogenous metastasis and might be similar to the recruitment of leukocytes at the site of inflammation. It is mediated by E-selectin and its ligands, of which the most stereospecific is a glycoconjugate sialyl Lewis x (CD15s), which may be expressed as an oligosaccharide branch of the CD44 glycoprotein, as well as a self-contained glycosphingolipid. It is also known that increased sialylation of glycoconjugates is a feature of malignant cells. The aim of the study was to analyze the effect of a novel thieno[2,3-b]pyridine, compound 1, in MDA-MB-231 triple-neg. breast cancer cells (TNBCs) upon CD15s and CD44 expression in different cell subpopulations using flow cytometry. CD15s expression was compared between mesenchymal-like cancer stem cells (CSC, CD44+CD24-), epithelial cells without CD44 (CD44-CD24+ and CD44-CD24-), and CD44+CD24+ cells that exhibit mesenchymal and epithelial features. In addition, expression of CD44 in CD15s+CSC and CD15s-CSC was determined Compound 1 significantly decreased the percentage of CD15s+CSC, CD15s+CD44+CD24+, and CD15s+CD44- subpopulations, as well as the expression of CD15s in CD44+CD24+ and CD44- cells, and therefore shows potential as a treatment for TNBC. The experimental part of the paper was very detailed, including the reaction process of N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5COA of Formula: C5H13NO2)

N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5) belongs to anime. Milder oxidation, using reagents such as NaOCl, can remove four hydrogen atoms from primary amines of the type RCH2NH2 to form nitriles (R―C≡N), and oxidation with reagents such as MnO2 can remove two hydrogen atoms from secondary amines (R2CH―NHR′) to form imines (R2C=NR′). Tertiary amines can be oxidized to enamines (R2C=CHNR2) by a variety of reagents.COA of Formula: C5H13NO2

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Younes, Maged; Aquilina, Gabriele; Castle, Laurence; Engel, Karl-Heinz; Fowler, Paul; Frutos Fernandez, Maria Jose; Fuerst, Peter; Guertler, Rainer; Gundert-Remy, Ursula; Husoey, Trine; Manco, Melania; Moldeus, Peter; Passamonti, Sabina; Shah, Romina; Waalkens-Berendsen, Ine; Wolfle, Detlef; Wright, Matthew; Benigni, Romualdo; Chipman, Kevin; Cordelli, Eugenia; Degen, Gisela; Carfi, Maria; Vianello, Giorgia; Mennes, Wim published an article in 2021. The article was titled 《Scientific opinion on flavoring group evaluation 414 (FGE .414): 2-hydroxy-4-methoxybenzaldehyde》, and you may find the article in EFSA Journal.Product Details of 673-22-3 The information in the text is summarized as follows:

The EFSA Panel on Food Additives and Flavorings (FAF) was requested to evaluate the safety of the substance 2-hydroxy-4-methoxybenzaldehyde [FL -no: 05.229] as a new flavoring substance, in accordance with Regulation (EC) No 1331/2008. 2-Hydroxy-4-methoxybenzaldehyde belongs to chem. group 23 (Commission Regulation (EC) No 1565/2000) and is structurally related to the hydroxy- and alkoxy-ring substituted benzyl derivatives evaluated in FGE .52 and in FGE .20Rev4. The Panel considered the structural/metabolic similarity sufficient to evaluate the candidate substance following a group-based approach according to the EFSA Guidance on the data required for the risk assessment of flavorings to be used in or on foods. The information provided on the manufacturing process, the composition and the stability of [FL -no: 05.229] was considered sufficient. From studies carried out with this substance, the Panel concluded that there is no concern with respect to genotoxicity. Based on QSAR evaluation of possible metabolism, and based on information from structurally related substances, various metabolic routes can be anticipated, which only result in the formation of innocuous metabolites. The exposure estimates for [FL -no: 05.229] (24 and 60 μg/person per day for children and adults, resp.) were below the Threshold of Toxicol. Concern (TTC) for its structural class (I). Accordingly, toxicity studies are not required and the Panel concluded at step A3 of the Procedure that 2-hydroxy-4-methoxybenzaldehyde is not of safety concern when used as a flavoring substance at the intended uses and use levels. Cumulative exposure estimates for 2-hydroxy-4-methoxybenzaldehyde and three structurally related substances (2.4 and 6.2 mg/kg body weight (bw) per day for adults and children, resp.) are above the TTC for structural class I, but below the ADI (acceptable daily intake) of 0-10 mg/kg bw per day for vanillin, which is one of these structurally related substances. Therefore, the cumulative exposure to these four substances [FL -no: 05.015, 05.018, 05.229 and 09.749] also does not raise a safety concern. After reading the article, we found that the author used 2-Hydroxy-4-methoxybenzaldehyde(cas: 673-22-3Product Details of 673-22-3)

2-Hydroxy-4-methoxybenzaldehyde(cas: 673-22-3) is the main component of root bark essential oil of Periploca sepium Bunge. It is a potential tyrosinase inhibitor present in African medicinal plants. 2-Hydroxy-4-methoxybenzaldehyde was used in the synthesis of Schiff base ligand.Product Details of 673-22-3

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Li, Wenwei; Zhou, Honggui; He, Yequan; Zeng, Ge; Zheng, Yumeng; Hu, Yangni; Chen, Zhongyan; Ge, Jing-Yuan; Lv, Ningning; Chen, Jiuxi published an article in 2022. The article was titled 《Synthesis of Diverse γ-Lactams via Rh-Catalyzed C(sp2)-H Addition to Aliphatic Nitriles》, and you may find the article in Organic Letters.Quality Control of m-Methoxyphenol The information in the text is summarized as follows:

An unprecedented pathway to access γ-lactams I [R1 = H, 6-Me, 5-Ph, etc.; R2 = Ph, 4-MeC6H4, 3-MeOC6H4, etc.], II [R3 = H, 5-F, 5-MeO, 5-N(CH3)2; R4 = Ph, 4-MeC6H4, Bn, etc.] and III [R5 = Me, 4-MeC6H4, 3-MeOC6H4, etc.; R6 = Me, Ph, Bn, etc.] using acetonitrile analogs as coupling partners without oxidants, ligands, and Lewis acids was reported. The reaction undergoes Rh-catalyzed C(sp2)-H addition to carbon-bound nitriles with the aid of an amide traceless auxiliary followed by an annulation sequence, featuring a broad substrate scope, good functional group tolerance, and excellent chemo/stereoselectivity. Scale-up reactions and late-stage derivatizations highlighted the potential synthetic utility of this methodol. A plausible mechanism was proposed based on mechanistic investigations. The results came from multiple reactions, including the reaction of m-Methoxyphenol(cas: 150-19-6Quality Control of m-Methoxyphenol)

m-Methoxyphenol(cas: 150-19-6) may be used in synthesis of:C(4) symmetric calix[4]resorcinarene, 2-nitroso-5-methoxyphenol, 6-methoxy-2(3H)-benzoxazoloneQuality Control of m-Methoxyphenol

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In 2022,Marrot, Laetitia; Meile, Kristine; Zouari, Mariem; DeVallance, David; Sandak, Anna; Herrera, Rene published an article in Molecules. The title of the article was 《Characterization of the compounds released in the gaseous waste stream during the slow pyrolysis of hemp (Cannabis sativa L.)》.Category: ethers-buliding-blocks The author mentioned the following in the article:

This study aims to characterize and valorize hemp residual biomass by a slow pyrolysis process. The volatile byproducts of hemp carbonization were characterized by several methods (TGA, UV-VIS, TLC, Flash Prep-LC, UHPLC, QTOF-MS) to understand the pyrolysis reaction mechanisms and to identify the chem. products produced during the process. The obtained carbon yield was 29%, generating a gaseous stream composed of phenols and furans which was collected in four temperature ranges (F1 at 20-150°C, F2 at 150-250°C, F3 at 250-400°C and F4 at 400-1000°C). The obtained liquid fractions were separated into subfractions by flash chromatog. The total phenolic content (TPC) varied depending on the fraction but did not correlate with an increase in temperature or with a decrease in pH value. Compounds present in fractions F1, F3 and F4, being mainly phenolic mols. such as guaiacyl or syringyl derivatives issued from the lignin degradation, exhibit antioxidant capacity. The temperature of the pyrolysis process was pos. correlated with detectable phenolic content, which can be explained by the decomposition order of the hemp chem. constituents. A detailed understanding of the chem. composition of pyrolysis products of hemp residuals allows for an assessment of their potential valorization routes and the future economic potential of underutilized biomass.m-Methoxyphenol(cas: 150-19-6Category: ethers-buliding-blocks) was used in this study.

m-Methoxyphenol(cas: 150-19-6) may be used in synthesis of:C(4) symmetric calix[4]resorcinarene, 2-nitroso-5-methoxyphenol, 6-methoxy-2(3H)-benzoxazoloneCategory: ethers-buliding-blocks

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In 2022,Luo, Xiaosheng; Feng, Qiping; Wang, Ping published an article in Synthesis. The title of the article was 《Radical Addition of 4-Hydroxyquinazolines and Alkylation of Quinones by the Electro-Induced Homolysis of 4-Alkyl-1,4-dihydropyridines》.HPLC of Formula: 60656-87-3 The author mentioned the following in the article:

The formation of C(sp3)-centered radicals via the electro-induced homolysis of 4-alkyl-1,4-dihydropyridines (alkyl-DHPs) is reported. The resulting alkyl radicals reacted with 4-hydroxyquinazolines or quinones to afford 2-alkyldihydroquinazolinones or alkylated quinones. A broad range of alkyl DHPs could be used as versatile radical precursors under electrolysis conditions. This alterative strategy provided a simple and effective pathway for the construction of C(sp2)-C(sp3) and C(sp3)-C(sp3) bonds under mild conditions. In the experiment, the researchers used many compounds, for example, 2-(Benzyloxy)acetaldehyde(cas: 60656-87-3HPLC of Formula: 60656-87-3)

2-(Benzyloxy)acetaldehyde(cas: 60656-87-3) may be used in the following syntheses: (3S,5S)-methyl 6-benzyloxy-3,5-dihydroxyhexanoate ,(S)-5-benzyloxy-4-hydroxypentan-2-one, myxothiazols.HPLC of Formula: 60656-87-3

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In 2022,Yimyaem, Jirapat; Chantana, Chayamon; Boonmee, Suthimon; Jaratjaroonphong, Jaray published an article in Synlett. The title of the article was 《Expedient Access to Indolyl-Substituted Tri- and Diarylmethanes and (±)-Colletotryptin E by Silica Sulfuric Acid Catalyzed Transindolylation》.Name: 2-(Benzyloxy)acetaldehyde The author mentioned the following in the article:

An expedient access to a series of nonsym. bis(indolyl)methanes (BIMs) through transindolylation of readily available sym. 3,3′-BIMs with various indoles catalyzed by silica-supported sulfuric acid has been established. This approach not only provides a useful strategy for the synthesis of structurally diverse BIMs, but also provides examples of nucleophilic substitution of BIMs with aromatic and nonaromatic π-systems, leading to a library of indolyl-substituted tri- and diarylmethanes. Moreover, this method was successfully applied in the first total synthesis of the 2,3′-BIM alkaloid (±)-colletotryptin E (I) in three steps with an overall yield of 46%. The features of this procedure include a metal-free process, an inexpensive and environmentally friendly catalyst, mild reaction conditions, broad functional-group tolerance, good yields, and gram-scalable preparations In the experiment, the researchers used many compounds, for example, 2-(Benzyloxy)acetaldehyde(cas: 60656-87-3Name: 2-(Benzyloxy)acetaldehyde)

2-(Benzyloxy)acetaldehyde(cas: 60656-87-3) is a non-natural aldehyde. It undergoes enantioselective Mukaiyama aldol reaction with silylketene acetal nucleophiles in the presence of C2-symmetric bis(oxazolinyl)pyridine Cu(II) complex (catalyst).Name: 2-(Benzyloxy)acetaldehyde

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