Category: ethers-buliding-blocks

Ethers feature bent C–O–C linkages. In dimethyl ether, the bond angle is 111° and C–O distances are 141 pm. 111-90-0, formula is C6H14O3, Name is Diethylene Glycol Monoethyl Ether. The barrier to rotation about the C–O bonds is low. The bonding of oxygen in ethers, alcohols, and water is similar. In the language of valence bond theory, the hybridization at oxygen is sp3. Product Details of C6H14O3.

Zhang, Yan;Wang, Huile;Zhao, Huifang;Liu, Zhong;Huang, Jingjun;Yang, Yujie;Chen, Yu research published 《 Characterization of liquefied products from corn stalk in the presence of polyhydric alcohols with acid catalysis》, the research content is summarized as follows. Atm. liquefaction technol. has been used widely and is an effective way of biomass component utilization. In this paper, the liquefied products obtained from corn stalk using polyhydric alcs. 1,2-propanediol (PG) mixed diethylene glycol (DEG) through acid catalysis under atm. pressure were characterized by various anal. technologies. The results indicated that 39 kinds of organic compounds were present in bio-oil, among which alcs. were the most, phenols were the second, and their relative contents were 70.7% and 25.6%, resp. There were also some organic acids, ethers, esters, and ketones. More than 80% of these compounds had a carbon number less than 25. Carbon NMR spectra (13C-NMR) showed that different chem. shifts δ (ppm) corresponded to various carbon types. The chem. composition of the residue from liquefaction was complex and contained a certain amount of large mol. substances that were difficult to degrade. It required more severe pyrolysis conditions than those of corn stalk. Results from X-Ray Diffraction (XRD) indicated the destruction of crystalline structure of carbohydrates and the cellulose mols. were cracked, indicating that the cellulose was degraded and the degree of liquefaction was high.

Product Details of C6H14O3, Diethylene glycol monoethyl ether appears as a colorless, slightly viscous liquid with a mild pleasant odor. Flash point near 190°F. Used to make soaps, dyes, and other chemicals.
Diethylene glycol monoethyl ether is a primary alcohol that is ethanol substituted by a 2-ethoxyethoxy group at position 2. It has a role as a protic solvent. It is a diether, a primary alcohol and a hydroxypolyether. It derives from a diethylene glycol., 111-90-0.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Ethers lack the hydroxyl groups of alcohols. Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other. 38256-93-8, formula is C4H11NO, Name is 2-Methoxy-N-methylethanamine. Ethers do have nonbonding electron pairs on their oxygen atoms, however, and they can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds. Safety of 2-Methoxy-N-methylethanamine.

Zhang, Yu;Yang, Xinye;Yao, Qizheng;Ma, Dawei research published 《 CuI/DMPAO-Catalyzed N-Arylation of Acyclic Secondary Amines》, the research content is summarized as follows. DMPAO (I) has been found to be a powerful ligand to enable copper-catalyzed coupling of aryl halides with aliphatic acyclic secondary amines take place under relatively mild conditions, and coupling of aryl halides with primary amines and cyclic secondary amines proceeds at low catalyst loading.

Safety of 2-Methoxy-N-methylethanamine, 2-Methoxy-N-methylethanamine is a useful research compound. Its molecular formula is C4H11NO and its molecular weight is 89.14 g/mol. The purity is usually 95%.
2-Methoxy-N-methylethanamine is a drug that binds to the cannabinoid receptor CB1. It has been shown to be effective in the treatment of cardiac arrhythmia and may also be used as an anti-inflammatory drug. 2MEMEA has been shown to have pharmacokinetic properties that are different from those of other amines, which may be due to its ability to form hydrogen bonds with water molecules. 2MEMEA also has diversified effects on some types of cancer cells, including hyperproliferative and amine-dependent cancers., 38256-93-8.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Ethers feature bent C–O–C linkages. In dimethyl ether, the bond angle is 111° and C–O distances are 141 pm. 38256-93-8, formula is C4H11NO, Name is 2-Methoxy-N-methylethanamine. The barrier to rotation about the C–O bonds is low. The bonding of oxygen in ethers, alcohols, and water is similar. In the language of valence bond theory, the hybridization at oxygen is sp3. COA of Formula: C4H11NO.

Zhao, Hua;Martin, Caden J.;Larm, Nathaniel E.;Baker, Gary A.;Trujillo, Tyler C. research published 《 Enzyme activation by water-mimicking dual-functionalized ionic liquids》, the research content is summarized as follows. Biocatalytic synthesis represents a green alternative to metal-catalyzed reactions. However, enzymes typically display much lower catalytic activities in nonaqueous solvents than in aqueous media. To mimic the aqueous environment for enzyme activation, this study designed a series of sixteen dual-functionalized ionic liquids (ILs) that contain both glycol ether (hydrogen-bond acceptor) and tert-alc. (hydrogen-bond donor) groups. These “water-like” ILs enabled high transesterification activities for immobilized Candida antarctica lipase B (CALB) known as Novozym 435 and immobilized Bacillus licheniformis protease (known as subtilisin A), resp. Several water-mimicking ILs containing 2-3 vol% water significantly increased the CALB activity by 1.8-fold of that in tert-butanol, and 1.6-fold of that in diisopropyl ether (both organic solvents are highly enzyme-compatible). To a smaller degree, subtilisin was activated by these ionic solvents up to 1.2-fold (with 100% selectivity at 2 vol% water) than by diisopropyl ether. Fluorescence emission spectra suggested that the characteristic emission maximum peaks were maintained in “water-like” ILs in most cases.

COA of Formula: C4H11NO, 2-Methoxy-N-methylethanamine is a useful research compound. Its molecular formula is C4H11NO and its molecular weight is 89.14 g/mol. The purity is usually 95%.
2-Methoxy-N-methylethanamine is a drug that binds to the cannabinoid receptor CB1. It has been shown to be effective in the treatment of cardiac arrhythmia and may also be used as an anti-inflammatory drug. 2MEMEA has been shown to have pharmacokinetic properties that are different from those of other amines, which may be due to its ability to form hydrogen bonds with water molecules. 2MEMEA also has diversified effects on some types of cancer cells, including hyperproliferative and amine-dependent cancers., 38256-93-8.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Ethers lack the hydroxyl groups of alcohols. Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other. 38256-93-8, formula is C4H11NO, Name is 2-Methoxy-N-methylethanamine. Ethers do have nonbonding electron pairs on their oxygen atoms, however, and they can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds. Application of C4H11NO.

Zhao, Junjun;Gou, Shaohua;Zhang, Xiaobing;Liang, Yan;Fang, Lei research published 《 Novel [1,2,4] Triazol [4,3-a] Pyridine Derivatives as Potential Selective c-Met Inhibitors with Improved Pharmacokinetic Properties》, the research content is summarized as follows. Total twenty-nine [1,2,4]triazolo[4,3-a]pyrazine derivatives were designed and synthesized. The target compounds, especially 4aa, showed potent activity to inhibit c-Met both in an enzyme assay and a cellular assay. The comprehensive screening for the inhibition of 60 different kinases revealed that 4aa could selectively inhibit c-Met while had no effect on other kinases, indicating 4aa is an excellent c-Met selective inhibitor. The flow cytometry studies found that 4aa had a similar behavior to the pos. control SGX-523 in terms of causing the tumor cell apoptosis and blocking cell-cycle progression. More importantly, 4aa showed much better pharmacokinetic properties than SGX-523. Altogether, the findings suggested the target compounds may be potential anti-tumor drug candidates.

Application of C4H11NO, 2-Methoxy-N-methylethanamine is a useful research compound. Its molecular formula is C4H11NO and its molecular weight is 89.14 g/mol. The purity is usually 95%.
2-Methoxy-N-methylethanamine is a drug that binds to the cannabinoid receptor CB1. It has been shown to be effective in the treatment of cardiac arrhythmia and may also be used as an anti-inflammatory drug. 2MEMEA has been shown to have pharmacokinetic properties that are different from those of other amines, which may be due to its ability to form hydrogen bonds with water molecules. 2MEMEA also has diversified effects on some types of cancer cells, including hyperproliferative and amine-dependent cancers., 38256-93-8.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Ethers are a class of organic compounds that contain an ether group—an oxygen atom connected to two alkyl or aryl groups. 122775-35-3, formula is C8H11BO4, Name is 3,4-Dimethoxyphenylboronic acid.They have the general formula R–O–R′, where R and R′ represent the alkyl or aryl groups. Category: ethers-buliding-blocks.

Zhao, Ke;Du, Yu;Peng, Qiong;Yu, Wen-Hao;Wang, Bi-Qin;Feng, Chun;Xiang, Shi-Kai research published 《 Regiodivergent C-H Arylation of Triphenylene Derivatives Controlled by Electronic Effects of Diaryliodonium Salts》, the research content is summarized as follows. A regiodivergent C-H arylation of triphenylene derivatives with diaryliodonium salts was developed. The regiodivergence was controlled by electronic effects of diaryliodonium salts. When the aryl(mesityl)iodonium salts bearing strong electron-donating groups at the para-position of aryl groups were used, the arylation reactions occurred ortho to amide groups. However, if the aryl(mesityl)iodonium salts bearing electron-withdrawing groups or weak electron-donating groups at the para-position of aryl groups were utilized, the arylation reactions occurred meta to amide groups.

Category: ethers-buliding-blocks, 3,4-Dimethoxyphenylboronic acid is a useful research compound. Its molecular formula is C8H11BO4 and its molecular weight is 181.98 g/mol. The purity is usually 95%.
3,4-Dimethoxyphenylboronic acid contains varying amounts of anhydride.
3,4-Dimethoxyphenylboronic acid is a bacterial mutagen. A useful intermediate for organic synthesis.
3,4-Dimethoxyphenylboronic acid is a boronate ester that has been shown to be an effective coupling partner for the Suzuki reaction. It has also been used in cancer therapy and as a photochemical probe for the study of biological properties. 3,4-Dimethoxyphenylboronic acid has been shown to demethylate DNA and inhibit methionine aminopeptidase activity. It also cross-couples with halides, such as chlorides or iodides, and activates tertiary alcohols. 3,4-Dimethoxyphenylboronic acid is soluble in organic solvents and can be used in supramolecular chemistry., 122775-35-3.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Ethers do have nonbonding electron pairs on their oxygen atoms, 530-59-6, formula is C11H12O5, Name is 3,5-Dimethoxy-4-hydroxycinnamic acid. The ability to form hydrogen bonds with other compounds makes ethers particularly good solvents for a wide variety of organic compounds and a surprisingly large number of inorganic compounds. Reference of 530-59-6.

Zhao, Xi Juan;Guo, Peng Mei;Pang, Wen Hui;Tan, Tao;Zhang, Yao Hai;Jiao, Bi Ning research published 《 Screening and quantitative analysis of characteristic secondary metabolites in Jindou kumquat (Fortunella hindsii var.chintou Swingle) among Fortunella fruits》, the research content is summarized as follows. Jindou kumquat (Fortunella hindsii var. chintou Swingle) with very small fruits belongs to genus Fortunella. However, there is a lack of relevant research on the characteristic secondary metabolites in Jindou compared with other Fortunella fruits. Here, non-targeted and targeted metabolomics based on UPLC-Q-TOF-MS and UPLC-QqQ-MS/MS was performed to profile and quantitate the phytochems. of 16 varieties including five species in the genus Fortunella. Results showed the types and contents of phytochems. in different varieties were quite distinct from each other. Twenty four of the screened metabolites in Jindou different from the other varieties were undoubtedly or tentatively identified. Targeted quant. anal. verified that coumarins and furanocoumarins could be considered to be the dominant characteristic metabolites in Jindou among other Fortunella fruits including auraptene, bergapten, imperatorin, xanthotoxin and umbelliferone. This study makes relatively comprehensive research into the secondary metabolites of Jindou and provides data as a basis for further evaluation and utilization of Fortunella germplasms.

Reference of 530-59-6, Sinapinic acid is a chemical compound that is the dihydroxybenzoic acid derivative of sinapic acid. It has been shown to have anti-inflammatory properties in vitro and in vivo. Sinapinic acid inhibits the activity of various enzymes, such as cyclooxygenase (COX), lipoxygenase (LOX), and 5-lipoxygenase-activating protein (FLAP). It also decreases levels of adhesion molecules and downregulates inflammatory response genes. Sinapinic acid has been shown to reduce inflammation by inhibiting the formation of proinflammatory mediators, such as prostaglandin E2 or leukotriene B4, in endothelial cells and mammary epithelial cells.
Sinapic acid is a phenylpropanoid hydroxycinnamic acid with diverse biological activities. Sinapic acid inhibits collagen-induced human platelet aggregation by up to 70% in vitro (IC50 = 1.03 mM). It scavenges 2,2-diphenyl-1-picrylhydrazyl (DPPH; ) and 2,2′-azino-bis-(3-ethylbenzothiazoline-6-sulfonate) (ABTS) free radicals with IC50 values of 8.3 and 5.4 μg/ml, respectively. Sinapic acid (200 μM) reduces colony formation of SW480 human colon carcinoma cells by 4-fold. It also inhibits colony formation of E. coli, S. enteritidis, and S. aureus on agar (MICs = 2.2, 2, and 1.8 mM, respectively). In vivo, sinapic acid (4 mg/kg, p.o.) increases the time spent in the open arms of the elevated plus maze by approximately 15% in mice, an effect that can be blocked by the GABAA receptor antagonists flumazenil and bicuculline. Sinapic acid is also commonly used as a matrix in protein mass spectrometry.
Sinapic acid analytical standard provided with w/w absolute assay, to be used for quantitative titration.
Sinapic acid is an hydroxycinnamic acid derivative that occurs naturally in Brassicaceae species.
cis-Sinapic acid, also known as cis-sinapate or synapitic acid, belongs to the class of organic compounds known as hydroxycinnamic acids. Hydroxycinnamic acids are compounds containing an cinnamic acid where the benzene ring is hydroxylated. cis-Sinapic acid is considered to be a practically insoluble (in water) and relatively neutral molecule. Within the cell, cis-sinapic acid is primarily located in the cytoplasm. Outside of the human body, cis-sinapic acid can be found in common pea and pulses. This makes cis-sinapic acid a potential biomarker for the consumption of these food products.
Cis-sinapic acid is a 3-(4-hydroxy-3,5-dimethoxyphenyl)prop-2-enoic acid in which the double bond has cis-configuration. It has been isolated from the shoots of alfalfa. It has a role as a plant metabolite., 530-59-6.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Ethers are a class of organic compounds that contain an ether group—an oxygen atom connected to two alkyl or aryl groups. 73724-45-5, formula is C18H17NO5, Name is Fmoc-Ser-OH.They have the general formula R–O–R′, where R and R′ represent the alkyl or aryl groups. Safety of Fmoc-Ser-OH.

Zheng, Mengjun;Cong, Wei;Peng, Haoran;Qing, Jie;Shen, Huaxing;Tang, Yaxin;Geng, Chenchen;Chen, Si;Zou, Yan;Zhang, Wei-Dong;Hu, Hong-Gang;Li, Xiang research published 《 Stapled Peptides Targeting SARS-CoV-2 Spike Protein HR1 Inhibit the Fusion of Virus to Its Cell Receptor》, the research content is summarized as follows. The pandemic of acute respiratory disease in 2019 caused by highly pathogenic and infectious SARS-CoV-2 has seriously endangered human public safety. The 6-helix bundle (6-HB) heptad repeat 1-heptad repeat 2 (HR1-HR2 complex) formation occurring in the process of spike protein-mediated membrane fusion could serve as a conserved and potential target for the design of fusion inhibitors. Based on the HR2 domain of 6-HB, we designed and synthesized 32 stapled peptides using an all-hydrocarbon peptide stapling strategy. Owing to the improved proteolytic stability and higher helical contents, the optimized stapled peptides termed SCH2-1-20 and SCH2-1-27 showed better inhibitory activities against pseudo and authentic SARS-CoV-2 compared to the linear counterpart. Of note, SCH2-1-20 and SCH2-1-27 were proved to interfere with S protein-mediated membrane fusion. Structural modeling indicated similar binding modes between SCH2-1-20 and the linear peptide. These optimized stapled peptides could serve as potent fusion inhibitors in treating and preventing SARS-CoV-2, and the corresponding SAR could facilitate further optimization.

73724-45-5, Fmoc-Ser-OH, also known as Fmoc-Ser-OH, is a useful research compound. Its molecular formula is C18H17NO5 and its molecular weight is 327.3 g/mol. The purity is usually 95%.
Fmoc-L-Ser-OH is a synthetic peptide that belongs to the group of glycopeptides. It is used as a model for such compounds and has been shown to have antimicrobial activity in vitro against gram-positive bacteria, especially Staphylococcus epidermidis. This compound was synthesized from 3-mercaptopropionic acid and chloride in the presence of hydroxyl groups and epidermal growth factor. The synthetic pathway can be divided into three steps: (1) condensation of 3-mercaptopropionic acid with hydrochloric acid to yield 3-mercaptoacrylic acid; (2) esterification of 3-mercaptoacrylic acid with glycine to form Fmoc-L-Ser; and (3) deprotection of Fmoc protecting group., Safety of Fmoc-Ser-OH

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem