Tag: 300-400

Stilbene dimer xylosides and flavanols from the roots of Lysidice rhodostegia and their antioxidant activities was written by Zhang, Sheng-Yuan;Wu, Zhong-Nan;Li, Ying-Ying;Tang, Qing;Zhan, Zhao-Chun;Wang, Wen-Zhi;Li, Yao-Lan;Wang, Guo-Cai;Zhang, Yu-Bo. And the article was included in Fitoterapia in 2021.Category: alcohols-buliding-blocks The following contents are mentioned in the article:

Eight new stilbene dimer xylosides (1-8) and one new flavanol (9), along with seven known ones (10-16) were isolated from the roots of Lysidice rhodostegia. Their structures were elucidated by extensive anal. of spectroscopic data (IR, UV, HR-ESI-MS, 1D and 2D NMR), ECD calculations and acid hydrolysis. Compounds 1-16 were evaluated for their antioxidant activities using DPPH radical-scavenging assay. Especially, compounds 9 and 10 exhibited stronger antioxidant effects than the pos. control (vitamin E), with IC50 values of 9.57 ± 1.30 and 13.60 ± 1.47 μM, resp. This study involved multiple reactions and reactants, such as (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6Category: alcohols-buliding-blocks).

(2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Category: alcohols-buliding-blocks

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The chemical constituents from twigs of Hamamelis japonica and their antiviral activities was written by Park, SeonJu;Nhiem, Nguyen Xuan;Song, Jae-Hyoung;Oh, Mira;Kim, Kil-Nam;Ko, Hyun-Jeong;Kim, Seung Hyun. And the article was included in Natural Product Research.SDS of cas: 27208-80-6 The following contents are mentioned in the article:

Three new monoterpenoid glycosides (-) and one new flavanol () along with 15 known compounds were isolated from the twig of Hamamelis japonica Sieb. et Zucc. The chem. constituent study of the twig of H. japonica has performed for the first time in the present investigation. Their structures were determined based on extensive spectroscopic methods including 1 D and 2 D NMR and CD spectra data. All isolated compounds were tested for their antiviral activities against HRV1B-, EV71-, PR8- and CVB3-infected Vero cells. Among the tested compounds, (-)-epigallocatechin 3-O-gallate exhibited the most consistent and effective antiviral activities against EV71 and PR8 infections. This study involved multiple reactions and reactants, such as (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6SDS of cas: 27208-80-6).

(2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.SDS of cas: 27208-80-6

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Phytochemical and chemotaxonomic study on Fallopia dentatoalata (Fr. Schm.) Holub was written by Meng, Lin;Qi, Wen;Zhang, Xuan;Zhang, Dong;Huang, Yourong;Shi, Ming;Li, Hongyu. And the article was included in Biochemical Systematics and Ecology in 2021.Related Products of 27208-80-6 The following contents are mentioned in the article:

Phytochem. study of Fallopia dentatoalata gave seventeen compounds, two sterols (8 and 10), three anthraquinones (5, 16 and 17), one chromone (13), two stilbenes (3 and 4), two amides (11 and 12), six flavonoids (1, 2, 6, 7, 14 and 15) and one fatty acid (9). Their structures were elucidated by spectroscopic methods and in comparison with the reported data. Compound 11 was obtained from genus Fallopia for the first time, and all of the compounds were firstly isolated from F. dentatoalata. The chemotaxonomic significance of these compounds was also discussed, which demonstrated the relationships between F. dentatoalata and some other species of genus Fallopia. This study involved multiple reactions and reactants, such as (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6Related Products of 27208-80-6).

(2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Related Products of 27208-80-6

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Characterization of the metabolites of trans-resveratrol-3-O-glucoside in monkeys and dogs was written by Su, Mei-Ying;Dong, Chao;Wan, Ji-Yun;Qu, Wen-Dong;Zhou, Mao-Jin. And the article was included in Journal of Asian Natural Products Research in 2022.Quality Control of (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol The following contents are mentioned in the article:

In this study, a liquid chromatog.-tandem multi-stage mass spectrometry (LC/MSn) method was established to characterize the metabolites of TRG in monkeys and dogs. A total of seven metabolites of TRG besides the prototype were found, which were identified as TR (M1), TRN (M2), trans-resveratrol-4′-O-glucuronide (M2′), trans-resveratrol-3-O-glucoside-4′-O-glucuronide (M3), trans-resveratrol-3-O-glucoside-5-O-glucuronide (M3′), trans-resveratrol-3-sulfate (M4) and trans-resveratrol-4′-sulfate (M4′). Addnl., the metabolic pathways of TRG in monkeys and dogs were proposed. There were also species differences of metabolism of TRG between monkeys and dogs. This study involved multiple reactions and reactants, such as (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6Quality Control of (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol).

(2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Quality Control of (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Compounds from the fruits of Nicandra physaloides and their potential anti-inflammatory activities was written by Liu, Yan;Jiang, Yi-Kai;Jiang, Hai-Bing;Liu, Guo-Zhen;Naseem, Anam;Algradi, Adnan Mohammed;Kuang, Hai-Xue;Yang, Bing-You. And the article was included in Phytochemistry Letters in 2022.Category: alcohols-buliding-blocks The following contents are mentioned in the article:

Twenty-one compounds were isolated and identified from the ethanol extract of the fruits of Nicandra physaloides, including four new (1-4) and 17 known compounds (5-21). All the compounds were isolated from the genus Physalis for the first time. In this study, NMR spectroscopy was used to study the compound structures by comparing their data with those reported in the literature. Moreover, the potential anti-inflammatory activity of RAW264.7 cells induced by lipopolysaccharide (LPS) was evaluated. Among the monoterpenoids, compounds (5-7, 9) exhibited weak anti-inflammatory activities, with IC50 values ranging from 29.10 to 68.30 μM. This study involved multiple reactions and reactants, such as (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6Category: alcohols-buliding-blocks).

(2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Category: alcohols-buliding-blocks

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Phytochemistry and Antioxidant Activities of Rhus tripartitum (Ucria) Grande Leaf and Fruit Phenolics, Essential Oils, and Fatty Acids was written by Jallali, Ines;Zaouali, Yosr;Mkadmini, Khaoula;Smaoui, Abderrazek;Abdelly, Chedly;Ksouri, Riadh. And the article was included in Natural Product Communications in 2022.Category: alcohols-buliding-blocks The following contents are mentioned in the article:

Rhus tripartitum (Ucria) Grande leaves and fruits were investigated for their contents in phenolic compounds, essential oils, and fatty acids. Chem. composition and antioxidant potential of these secondary metabolites were investigated using chromatog. tools and different antioxidant tests. Results displayed high amounts of phenolic compounds in leaves, concomitant with important antioxidant potentialities, probably due to their richness in phenolic acids and flavonoids as identified by reverse phase high performance liquid chromatog. (RP-HPLC). Amounts of essential oils were higher in leaves. Oxygenated sesquiterpenes are exclusively synthesized by the fruits, expressing better antioxidant activities. This study involved multiple reactions and reactants, such as (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6Category: alcohols-buliding-blocks).

(2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Category: alcohols-buliding-blocks

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The effect of harvest time and vintage year on the phenolic composition of Nero and Bianca wines was written by Villango, Sz.;Palfi, Z.;Palfi, X.;Szekeres, A.;Bencsik, O.;Zsofi, Zs.. And the article was included in Acta Alimentaria in 2022.Formula: C20H22O8 The following contents are mentioned in the article:

Fungal disease resistant (PIWI) interspecific grape varieties are playing an important role as an alternative for organic wine production Organic (bio) wines are demanded by numerous conscious consumers around the globe. They choose this kind of wines predominantly because of the absence of synthetic pesticides, fertilisers and sustainable agriculture. Resistant grape growing moreover results in addnl. environmental and health benefits. Nero and Bianca are among Hungary’s most promising interspecific grape cultivars gaining international interest recently, there are, however, limited vitivinicultural knowledge on them. Our aim was to examine the flavonoid and anthocyanin composition for both interspecific varieties during different harvest times in two consecutive vintages. The date of harvest and vintage played a significant effect on grape and wine quality. This study involved multiple reactions and reactants, such as (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6Formula: C20H22O8).

(2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Formula: C20H22O8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

SIRT1 provides new pharmacological targets for polydatin through its role as a metabolic sensor was written by Sun, Zhicheng;Wang, Xiyang;Xu, Zhenchao. And the article was included in Biomedicine & Pharmacotherapy in 2021.Synthetic Route of C20H22O8 The following contents are mentioned in the article:

A review. The SIRT family of proteins constitutes highly conserved deacetylases with diverse and extensive functions. These proteins have specific biol. functions, including regulation of transcription, cell cycle, cell differentiation, apoptosis, stress, metabolism, and genomic stability. Polydatin is a monocrystalline compound isolated from a Chinese herb, Polygonum cuspidatum. The pharmacol. mechanisms of polydatin are mostly unclear but involve members of the SIRT protein family, among which SIRT1 plays a vital role. Polydatin is usually considered a potential SIRT1 activator. This review summarizes the signaling mechanism of polydatin involving SIRT1 and discusses the roles of related signal mols. such as PGC-1α, Nrf2, p38-MAPK, NLPR3 inflammasome, and p53. Further, we describe the metabolic regulation of related biol. macromols. and demonstrate that SIRT1, as a metabolic sensor, may act as a new pharmacol. target for polydatin. This study involved multiple reactions and reactants, such as (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6Synthetic Route of C20H22O8).

(2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. A multistep synthesis may use Grignard-like reactions to form an alcohol with the desired carbon structure, followed by reactions to convert the hydroxyl group of the alcohol to the desired functionality.Synthetic Route of C20H22O8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Post-veraison different frequencies of water deficit strategies enhance Reliance grapes quality under root restriction was written by Leng, Feng;Zhou, Jialing;Wang, Chengyang;Sun, Liping;Zhang, Yue;Li, Youmei;Wang, Lei;Wang, Shiping;Zhang, Xianan;Xie, Zhaosen. And the article was included in Food Chemistry in 2022.Quality Control of (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol The following contents are mentioned in the article:

In this study, two water deficit treatments in the same amount of water but with different frequencies (T1: 2.5 L per 4 d and T2: 5 L per 8 d) were performed on Reliance grapevines from veraison until harvest to explore their effects on grape berries quality under root restriction. Results showed that glucose, fructose and sucrose contents were increased, while malic acid, tartaric acid and citric acid contents were decreased under two treatments. Meanwhile, water deficits also promoted the accumulation of phenylalanine and proline. For phenols, anthocyanins, resveratrol and flavonols contents in the water deficit groups were significantly higher than those in the control group. In addition, two water deficit treatments increased the characteristic aromas contents, especially the esters contents. Overall, T2 treatment had a better effect than T1 treatment. This study provided an idea for improving water use efficiency and grape quality. This study involved multiple reactions and reactants, such as (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6Quality Control of (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol).

(2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. A multistep synthesis may use Grignard-like reactions to form an alcohol with the desired carbon structure, followed by reactions to convert the hydroxyl group of the alcohol to the desired functionality.Quality Control of (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Chemical constituents from Semiliquidambar chingii and their chemotaxonomic significance was written by Zhang, Jingyi;Kaliaperumal, Kumaravel;Liu, Ziyue;Zhang, Jun. And the article was included in Biochemical Systematics and Ecology in 2022.Safety of (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol The following contents are mentioned in the article:

The present study investigated the phytochem. constituents of Semiliquidambar chingii for the first time, resulting in the isolation and characterization of nineteen compounds which were categorized into eight groups as resveratrol derivatives (1-4), triterpenoids (5-10), flavonoids (11-13), phenolic glycosides (14-15), lignan (16), ellagic acid derivative (17), coniferyl alc. derivative (18), and shikimic acid derivative (19). The chem. structures of these compounds were elucidated based on the careful anal. of spectroscopic data and comparison with reported data. This is the first report of isolation of compounds 1-19 from S. chingii and compounds 1-4, 5-7, 9-11, and 14-19 within the genus Semiliquidambar. Furthermore, the chemotaxonomic significance of the isolates was discussed in detail, which might provide important chem. taxonomic evidence supporting the hybrid origin of Semiliquidambar from the genera Altingia and Liquidambar. This study involved multiple reactions and reactants, such as (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6Safety of (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol).

(2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Safety of (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts