Month: December 2022

Design, Synthesis, and Biological Evaluation of New Peripheral 5HT_2A Antagonists for Nonalcoholic Fatty Liver Disease was written by Kim, Minhee;Hwang, Inseon;Pagire, Haushabhau S.;Pagire, Suvarna H.;Choi, Wonsuk;Choi, Won Gun;Yoon, Jihyeon;Lee, Won Mi;Song, Jin Sook;Yoo, Eun Kyung;Lee, Seung Mi;Kim, Mi-jin;Bae, Myung Ae;Kim, Dooseop;Lee, Heejong;Lee, Eun-Young;Jeon, Jae-Han;Lee, In-Kyu;Kim, Hail;Ahn, Jin Hee. And the article was included in Journal of Medicinal Chemistry in 2020.HPLC of Formula: 2253-73-8 The following contents are mentioned in the article:

Nonalcoholic fatty liver disease (NAFLD) is increasingly prevalent worldwide, causing serious liver complications, including nonalcoholic steatohepatitis. Recent findings suggest that peripheral serotonin (5-hydroxytryptamine, 5HT) regulates energy homeostasis, including hepatic lipid metabolism More specifically, liver-specific 5HT_2A knockout mice exhibit alleviated hepatic lipid accumulation and hepatic steatosis. Here, structural modifications of pimavanserin (CNS drug), a 5HT_2A antagonist approved for Parkinson’s disease, led us to synthesize new peripherally acting 5HT_2A antagonists. Among the synthesized compounds, compound 14a showed good in vitro activity, good liver microsomal stability, 5HT subtype selectivity, and no significant inhibition of CYP and hERG. The in vitro and in vivo blood-brain barrier permeability study proved that 14a acts peripherally. Compound 14a decreased the liver weight and hepatic lipid accumulation in high-fat-diet-induced obesity mice. Our study suggests new therapeutic possibilities for peripheral 5HT_2A antagonists in NAFLD. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8HPLC of Formula: 2253-73-8).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.HPLC of Formula: 2253-73-8

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

Design, Synthesis, and Biological Evaluation of New Peripheral 5HT_2A Antagonists for Nonalcoholic Fatty Liver Disease was written by Kim, Minhee;Hwang, Inseon;Pagire, Haushabhau S.;Pagire, Suvarna H.;Choi, Wonsuk;Choi, Won Gun;Yoon, Jihyeon;Lee, Won Mi;Song, Jin Sook;Yoo, Eun Kyung;Lee, Seung Mi;Kim, Mi-jin;Bae, Myung Ae;Kim, Dooseop;Lee, Heejong;Lee, Eun-Young;Jeon, Jae-Han;Lee, In-Kyu;Kim, Hail;Ahn, Jin Hee. And the article was included in Journal of Medicinal Chemistry in 2020.Formula: C4H7NS The following contents are mentioned in the article:

Nonalcoholic fatty liver disease (NAFLD) is increasingly prevalent worldwide, causing serious liver complications, including nonalcoholic steatohepatitis. Recent findings suggest that peripheral serotonin (5-hydroxytryptamine, 5HT) regulates energy homeostasis, including hepatic lipid metabolism More specifically, liver-specific 5HT_2A knockout mice exhibit alleviated hepatic lipid accumulation and hepatic steatosis. Here, structural modifications of pimavanserin (CNS drug), a 5HT_2A antagonist approved for Parkinson’s disease, led us to synthesize new peripherally acting 5HT_2A antagonists. Among the synthesized compounds, compound 14a showed good in vitro activity, good liver microsomal stability, 5HT subtype selectivity, and no significant inhibition of CYP and hERG. The in vitro and in vivo blood-brain barrier permeability study proved that 14a acts peripherally. Compound 14a decreased the liver weight and hepatic lipid accumulation in high-fat-diet-induced obesity mice. Our study suggests new therapeutic possibilities for peripheral 5HT_2A antagonists in NAFLD. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Formula: C4H7NS).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Formula: C4H7NS

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

A lanthanide MOF catalyst with an excellent thermal stability for the synthesis of polycarbonate diol was written by Wang, Liping;He, Jiao;Chen, Xueying;Lv, Yanling. And the article was included in Journal of the Iranian Chemical Society in 2020.Product Details of 102-09-0 The following contents are mentioned in the article:

A lanthanide metal-organic framework (MOF) Yb(BTC)(H₂O)·(DMF) (BTC = 1,3,5-benzenetricarboxylate, DMF = N,N-dimethylformamide) was prepared from Yb(NO₃)₃·5H₂O and H₃BTC using the solvothermal method and characterized by Fourier transform IR spectroscopy, X-ray diffraction, thermogravimetric anal., SEM, N₂ adsorption-desorption technol., and temperature-programmed desorption. The results show that Yb(BTC)(H₂O)·(DMF) is a lanthanide MOF with an excellent thermal stability. The coordinated water mols. and DMF guest mols. were removed from the channels by calcination to form a porous solid Yb (BTC) with coordinatively unsaturated Yb³⁺ sites. The BET surface area and pore size of Yb(BTC) are 695 m²/g and 0.68 nm, resp. As a heterogeneous Lewis acid catalyst, the activity of Yb(BTC) for the synthesis of polycarbonate diol (PCDL) via transesterification between di-Ph carbonate and diol was investigated. Compared with nine reported catalysts, Yb(BTC) exhibits the highest catalytic activity for the synthesis of PCDL. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Product Details of 102-09-0).

Diphenyl carbonate (cas: 102-09-0) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Product Details of 102-09-0

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

Comprehensive identification of molecular profiles related to sensory and nutritional changes in Mongolian cheese during storage by untargeted metabolomics coupled with quantification of free amino acids was written by Zhang, Xin;Zheng, Yuanrong;Zhou, Ran;Ma, Ming. And the article was included in Food Chemistry in 2022.Recommanded Product: Octyl acetate The following contents are mentioned in the article:

Non-targeted metabolomics was used to study metabolites with low mol. weight which may contribute to quality deterioration of Mongolian cheese during storage. Microbiol. anal., pH, FAAs (free amino acids), volatile compounds, and sensory evaluation of the cheese during storage were also studied. A total of 278 metabolites were identified in Mongolian cheese, of which 51 metabolites were used as differential metabolites, including amino acids, peptides, organic acids, lipids, and carbohydrates. Bitter amino acids, bitter peptide (Phe-Ile), and organic acids (sinapic acid, butyric acid) increased during storage. Metabolic pathway anal. showed that differential metabolites were mainly related to amino acid metabolism, such as β-alanine metabolism and glycine, serine, and threonine metabolism Moreover, accompanied with the increased contents of short-chain fatty acids, 2-undecanone and Et esters, strength of odor and unpleasant smell increased but overall acceptability decreased during Mongolian cheese storage. This research provides suitable strategies for quality control of Mongolian cheese during shelf life. This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1Recommanded Product: Octyl acetate).

Octyl acetate (cas: 112-14-1) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Recommanded Product: Octyl acetate

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

Quadratic Modeling and Optimization of Quaternary Equilibria of Liquid-Liquid Systems of General Types, Reactive Extraction Mixtures and Aqueous Biphasic Systems was written by Senol, Aynur. And the article was included in Journal of Solution Chemistry in 2022.Quality Control of Octyl acetate The following contents are mentioned in the article:

This paper studies quadratic modeling and optimization of quaternary equilibrium of liquid-liquid systems of general types, reactive extraction mixtures and aqueous biphasic systems in order to develop an understandable basis of functionally dependent variables that govern optimal solute partitioning within the relevant system. The proposed three quadratic models (QMG, QMR and QMAB), being compatible with multilinear methodol., mimic the equilibrium properties of six test systems relatively accurately, and subsequently, are applied to globally optimizing quaternary equilibrium To remedy an appropriate optimization algorithm, the hybrid gradient method and the derivative variation method are treated and their use for tackling different problems is discussed. The problem of fair imitation of a global optimality is then addressed. The algorithmic solution is completed by the numerical results of six testing problems, being indicative of the fact that the distribution, geometric and solvatochromic properties of components are primary concern to be accounted for a reliable prediction of optimal phase equilibrium This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1Quality Control of Octyl acetate).

Octyl acetate (cas: 112-14-1) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Quality Control of Octyl acetate

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

Finite element analysis of molecular structure and estimation of liquid thermal conductivity of carboxylates was written by Liu, Wan-qiang;Lu, Hai-xia;Liu, Feng-ping;Chen, Guan-fan;Yue, Ming;Qiu, Ming-hua. And the article was included in Gaoxiao Huaxue Gongcheng Xuebao in 2020.Formula: C10H20O2 The following contents are mentioned in the article:

Thermal conductivity is a basic thermodn. data in chem. engineering. Carboxylates are important organic raw materials, while its thermal conductivity estimation is limited. Based on finite element anal., the natural frequency of carboxylate mol. structure was solved by vibration mechanics, and the displacement vector of each node was solved by potential energy min. principle and the charge-displacement parameter of carboxylate mol. structures was calculated by heavy at. charge of the quantum calculation method. The results show that the liquid thermal conductivity estimation model based on natural frequency of carboxylic acid ester mols., charge-displacement and temperature parameters are applicable for the correlation of 48 carboxylates of 746 liquid thermal conductivity data at different temperatures, it can also be used for the prediction of liquid thermal conductivity of carboxylates not in the training set. Compared with Sastri and Latini methods, the result shows that the error is smaller, the estimation condition is simpler, the estimation range is wider and the target mol. structure is more complex. This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1Formula: C10H20O2).

Octyl acetate (cas: 112-14-1) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Formula: C10H20O2

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

Uptake and release of species from carbohydrate containing organogels and hydrogels was written by Pan, Abhishek;Roy, Saswati G.;Haldar, Ujjal;Mahapatra, Rita D.;Harper, Garry R.;Low, Wan Li;De, Priyadarsi;Hardy, John G.. And the article was included in Gels in 2019.Formula: C16H22O11 The following contents are mentioned in the article:

Hydrogels are used for a variety of tech. and medical applications capitalizing on their three-dimensional (3D) crosslinked polymeric structures and ability to act as a reservoir for encapsulated species (potentially encapsulating or releasing them in response to environmental stimuli). In this study, carbohydrate-based organogels were synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization of a β-D-glucose pentaacetate containing methacrylate monomer (Ac-glu-HEMA) in the presence of a di-vinyl crosslinker; these organogels could be converted to hydrogels by treatment with sodium methoxide (NaOMe). These materials were studied using solid state 13C cross-polarization/magic-angle spinning (CP/MAS) NMR, Fourier transform IR (FTIR) spectroscopy, and field emission SEM (FE-SEM). The swelling of the gels in both organic solvents and water were studied, as was their ability to absorb model bioactive mols. (the cationic dyes methylene blue (MB) and rhodamine B (RhB)) and absorb/release silver nitrate, demonstrating such gels have potential for environmental and biomedical applications. This study involved multiple reactions and reactants, such as (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3Formula: C16H22O11).

(2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Formula: C16H22O11

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

Prediction and screening of biologically active compounds in honeysuckle (Lonicera japonica) by biopartitioning micellar chromatography was written by Gan, Yuan;Liang, Yan;Chen, Han;Xue, Jin-Tao;Yan, Xin-Yu;Xiong, Dong-Mei;Chen, Cong;Ye, Li-Ming;Xu, Ting;Chen, Yu. And the article was included in Asian Journal of Chemistry in 2014.Category: esters-buliding-blocks The following contents are mentioned in the article:

A new in vitro method, based on the retention data in biopartitioning micellar chromatog., is validated for prediction and screening of bioactive components of honeysuckle (Lonicera japonica). Relationships between the capacity factors of honeysuckle extracts and chem. drugs with related curative effects are studied. Finally, statistical anal. and predictive model were obtained. The results reveal that anti-inflammatory, antipyretic and analgesic effects are the main efficacy of honeysuckle, antibiotic and antiviral effects take second place, effect of lowering blood pressure, high blood fat and blood sugar is the weakest. Besides, with further relevant Matlab programming function, the probability of the components associated with different effects can be obtained by calculating the honeysuckle capacity factors, so as to identify which peak represents the active ingredient in the chromatogram and which is the main pharmacol. action. The use of biopartitioning micellar chromatog. is simple, reproducible and can provide key information for predicting and screening bioactive constituents of honeysuckle extracts This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5Category: esters-buliding-blocks).

4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Category: esters-buliding-blocks

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

Cu^II and Au^III complexes with glycoconjugated dithiocarbamato ligands for potential applications in targeted chemotherapy was written by Pettenuzzo, Nicolo;Brustolin, Leonardo;Coltri, Elisa;Gambalunga, Alberto;Chiara, Federica;Trevisan, Andrea;Biondi, Barbara;Nardon, Chiara;Fregona, Dolores. And the article was included in ChemMedChem in 2019.COA of Formula: C16H22O11 The following contents are mentioned in the article:

This work is focused on the synthesis, characterization, and preliminary biol. evaluation of bio-conjugated Au^III and Cu^II complexes with the aim of overcoming the well-known side effects of chemotherapy by improving the selective accumulation of an anticancer metal payload in malignant cells. For this purpose, carbohydrates were chosen as targeting agents, exploiting the Warburg effect that accounts for the over expression of glucose-transporter proteins (in particular GLUTs) in the phospholipid bilayer of most neoplastic cells. We linked the dithiocarbamato moiety to the C1 position of three different monosaccharides: D-glucose, D-galactose, and D-mannose. Altogether, six complexes with a 1:2 metal-to-ligand stoichiometry were synthesized and in vitro tested as anticancer agents. One of them showed high cytotoxic activity toward the HCT116 colorectal human carcinoma cell line, paving the way to future in vivo studies aimed at evaluating the role of carbohydrates in the selective delivery of whole mols. into cancerous cells. This study involved multiple reactions and reactants, such as (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3COA of Formula: C16H22O11).

(2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.COA of Formula: C16H22O11

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

Synthesis of new triazole linked carbohybrids with ROS-mediated toxicity in breast cancer was written by Kumari, Priti;Dubey, Shraddha;Venkatachalapathy, Sneha;Narayana, Chintam;Gupta, Ashish;Sagar, Ram. And the article was included in New Journal of Chemistry in 2019.Recommanded Product: 604-69-3 The following contents are mentioned in the article:

Carbohybrids are an important class of mols. which exhibit diverse biol. activities and are present as structural motifs in many natural products. Two series of new triazole linked N-glycosides of coumarins and quinolones (n = 27) were efficiently synthesized starting from 1-azido-2,3,4,6-tetra-O-acetyl β-D-glucose and 1-azido-2,3,4,6-tetra-O-acetyl β-D-galactose reacting with various 4-O-propargyl coumarins and 4-O-propargyl quinolones in shorter reaction time (30 min) under microwave assisted conditions. Anticancer activity of these newly synthesized triazole linked N-glycosides of coumarins and quinolones was determined in detail through cellular assays against MCF-7 (breast cancer cell line), HepG2 (liver cancer cell line), HCT-116 (colon cancer cell line) and Huh-7.5 cell lines. The selected library member displayed low micromolar (IC₅₀ 10.97μM) and selective toxicity against the breast cancer cell line (MCF-7). Mechanistic studies showed that the anticancer activity of the active compound was because of the generation of reactive oxygen species (ROS). This study involved multiple reactions and reactants, such as (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3Recommanded Product: 604-69-3).

(2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Recommanded Product: 604-69-3

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