Day: February 22, 2023

In Vitro Synergistic Inhibitory Activity of Natural Alkaloid Berberine Combined with Azithromycin against Alginate Production by Pseudomonas aeruginosa PAO1. was written by Zhao, Zhijing;Guo, Mengyu;Xu, Xiaona;Hu, Yue;Liu, Dongmei;Wang, Chunxia;Liu, Xinwei;Li, Yongwei. And the article was included in Oxidative medicine and cellular longevity in 2022.Recommanded Product: 9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium This article mentions the following:

Background: Berberine (BER) is a natural isoquinoline alkaloid which extensively been applied to treat bacterial infection in TCM for a long time. Alginate is an important component of Pseudomonas aeruginosa biofilm. Herein, we investigated the effects of berberine and azithromycin (AZM) on alginate in the biofilm of P. aeruginosa PAO1. Methods: The MIC and synergistic activity of BER and AZM against PAO1 were determined using the micro broth dilution and checkerboard titration methods, respectively. The effect of BER on PAO1 growth was evaluated using a time-kill assay. Moreover, the effects of BER, AZM, and a combination of both on PAO1 biofilm formation, kinesis, and virulence factor expression were evaluated at subinhibitory concentrations. The alginate content in the biofilm was detected using ELISA, and the relative expression of alginate formation-related genes algD, algR, and algG was detected by qRT-PCR. Results: Simultaneous administration of berberine significantly reduced the MIC of azithromycin, and berberine at a certain concentration inhibited PAO1 growth. Moreover, combined berberine and azithromycin had synergistic effects against PAO1, significantly reducing biofilm formation, swarming, and twitching motility, and the production of virulence factors. The relative expression of alginate-related regulatory genes algG, algD, and algR of the combined treatment group was significantly lower than that of the control group. Conclusion: In summary, berberine and azithromycin in combination had a significant synergistic effect on the inhibition of alginate production by P. aeruginosa. Further molecular studies are in great need to reveal the mechanisms underlying the synergistic activity between berberine and azithromycin. In the experiment, the researchers used many compounds, for example, 9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium (cas: 2086-83-1Recommanded Product: 9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium).

9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium (cas: 2086-83-1) belongs to isoquinoline derivatives. Quinoline is a catabolite of tryptophan, the basic structure of some antihypertensive drugs, such as the peripheral vasodilators prazosin and doxazosin. Other industrial applications include their use as corrosion inhibitors, preservatives, and as solvents for resins and terpenes.Recommanded Product: 9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Transition Metal-Free Cascade Reactions of Alkynols to Afford Isoquinolin-1(2H)-one and Dihydroisobenzofuran Derivatives was written by Li, Deng Yuan;Shi, Ke Ji;Mao, Xiao Feng;Chen, Guo Rong;Liu, Pei Nian. And the article was included in Journal of Organic Chemistry in 2014.Category: isoquinoline This article mentions the following:

Transition metal-free cascade reactions of alkynols with imines have been achieved using potassium tert-butoxide as catalyst. Switching the reaction solvent gives two kinds of products in good yield: isoquinolin-1(2H)-one derivatives and dihydroisobenzofuran derivatives Thus, e.g., reaction of alkynol I with imine II in DMSO in presence of t-BuOK afforded isoquinolin-1(2H)-one III in 89% yield, whereas reaction in THF afforded dihydroisobenzofuran IV in 92% yield. This approach was used to generate the natural product 8-oxypseudopalmatine in a two-step procedure from com. available starting materials. Addnl., multicomponent reactions of alkynols, aldehydes, and amines were also successfully achieved to afford isoquinolin-1(2H)-one derivatives In the experiment, the researchers used many compounds, for example, 6,7-Dimethoxy-3,4-dihydroisoquinoline (cas: 3382-18-1Category: isoquinoline).

6,7-Dimethoxy-3,4-dihydroisoquinoline (cas: 3382-18-1) belongs to isoquinoline derivatives. Although isoquinoline derivatives can be synthesized by several methods, relatively few direct methods deliver the unsubstituted isoquinoline. Lewis acid activation and nucleophilic attack can produce multiple regioisomers in quinolines and pyridines; isoquinolines generally only undergo attack at the 1-position.Category: isoquinoline

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Fluorescence “On-Off” chemical sensor for ultrasensitive detection of Al³⁺ in live cell was written by Zhu, Jinli;Lu, Linxia;Wang, Miao;Sun, Tongming;Huang, Yang;Wang, Chunxian;Bao, Wenyan;Wang, Minmin;Zou, Fengxia;Tang, Yanfeng. And the article was included in Tetrahedron Letters in 2020.Computed Properties of C10H7NO2 This article mentions the following:

An efficient fluorescent probe, 3, 3-bis(4-hydroxyphenyl)-2-benzofuran-1-one-isoquinoline-1-carbohydrazide hydrazine (L, I), has been prepared for the selective sensing of Al³⁺ in DMSO-H₂O (90:10, volume/volume) solution The 1:2 stoichiometry of L and Al³⁺ was determined from Job’s plot experiments and ESI-MS. The binding constants was observed as 7.106 x 10¹⁰ M^-2, and the detection limit is 9.79 x 10^-9 M. Moreover, the as-prepared probe shows high sensitivity to Al³⁺ both in acidic and neutral conditions. In addition, the as-prepared probe with good biol. compatibility shows effective imaging of Al³⁺ in living cells. In the experiment, the researchers used many compounds, for example, Isoquinoline-1-carboxylic acid (cas: 486-73-7Computed Properties of C10H7NO2).

Isoquinoline-1-carboxylic acid (cas: 486-73-7) belongs to isoquinoline derivatives. Quinoline and its derivatives are widely used as fungicides, biological agents, antibiotics, alkaloids, dyes, rubber chemicals and flavoring agents. The Pomeranz–Fritsch reaction provides a method for the preparation of isoquinoline. This reaction uses a benzaldehyde and aminoacetoaldehyde diethyl acetal, which in an acid medium react to form isoquinoline.Computed Properties of C10H7NO2

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Synthesis of 5-trifluoromethyl-2-sulfonylpyridine PPARβ/δ antagonists: Effects on the affinity and selectivity towards PPARβ/δ was written by Kaupang, Aasmund;Kase, Eili Tranheim;Vo, Cecilie Xuan Trang;Amundsen, Marthe;Vik, Anders;Hansen, Trond Vidar. And the article was included in Bioorganic & Medicinal Chemistry in 2016.Recommanded Product: Isoquinoline-1-carboxylic acid This article mentions the following:

The covalent modification of peroxisome-proliferator activated receptor β/δ (PPARβ/δ) is part of the mode of action of 5-trifluoromethyl-2-sulfonylpyridine PPARβ/δ antagonists such as GSK3787 and CC618. Herein, the synthesis and in vitro biol. evaluation of a range of structural analogs of the two antagonists are reported. The new ligands demonstrate that an improvement in the selectivity of 5-trifluoromethyl-2-sulfonylpyridine antagonists towards PPARβ/δ is achievable at the expense of their immediate affinity for PPARβ/δ. However, their putatively covalent and irreversible mode of action may ensure their efficacy over time, as observed in time-resolved fluorescence resonance energy transfer (TR-FRET)-based ligand displacement assays. In the experiment, the researchers used many compounds, for example, Isoquinoline-1-carboxylic acid (cas: 486-73-7Recommanded Product: Isoquinoline-1-carboxylic acid).

Isoquinoline-1-carboxylic acid (cas: 486-73-7) belongs to isoquinoline derivatives. Quinoline and its derivatives are widely used as fungicides, biological agents, antibiotics, alkaloids, dyes, rubber chemicals and flavoring agents. They are also used to make oil-soluble dyes, food colorants, pharmaceuticals, pH indicators and other organic compounds. Recommanded Product: Isoquinoline-1-carboxylic acid

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Inhibition of inflammasome activation via sphingolipid pathway in acute lung injury by Huanglian Jiedu decoction: An integrative pharmacology approach was written by Chen, Ying;Peng, Mingming;Li, Wei;Zhao, Mantong;Cao, Xia;Li, Chuanqiu;Zhang, Han;Yang, Mengru;Liang, Lanyuan;Yue, Yiming;Xia, Tianyi;Zhong, Renxing;Wang, Yi;Shu, Zunpeng. And the article was included in Phytomedicine in 2022.Name: 9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium This article mentions the following:

Acute lung injury (ALI) is a serious health issue which causes significant morbidity and mortality. Inflammation is an important factor in the pathogenesis of ALI. Even though ALI has been successfully managed using a traditiomal Chinese medicine (TCM), Huanglian Jiedu Decoction (HLD), its mechanism of action remains unknown. This study explored the therapeutic potential of HLD in lipopolysaccharide (LPS)-induced ALI rats by utilizing integrative pharmacol. Here, the therapeutic efficacy of HLD was evaluated using lung wet/dry weight ratio (W/D), myeloperoxide (MPO) activity, and levels of tumor necrosis factor (TNF-α), interleukin (IL)-1β and IL-6. Network pharmacol. predictd the active components of HLD in ALI. Lung tissues were subjected to perform Hematoxylin-eosin (H&E) staining, metabolomics, and transcriptomics. The acid ceramidase (ASAH1) inhibitor, carmofur, was employedto suppress the sphingolipid signaling pathway. HLD reduced pulmonary edema and vascular permeability, and suppressed the levels of TNF-α, IL-6, and IL-1β in lung tissue, Bronchoalveolar lavage fluid (BALF), and serum. Network pharmacol. combined with transcriptomics and metabolomics showed that sphingolipid signaling was the main regulatory pathway for HLD to ameliorate ALI, as confirmed by immunohistochem. anal. Then, we reverse verified that the sphingolipid signaling pathway was the main pathway involed in ALI. Finally, berberine, baicalein, obacunone, and geniposide were docked with acid ceramidase to further explore the mechanisms of interaction between the compound and protein. HLD does have a better therapeutic effect on ALI, and its mol. mechanism is better elucidated from the whole, which is to balance lipid metabolism, energy metabolism and amino acid metabolism, and inhibit NLRP3 inflammasome activation by regulating the sphingolipid pathway. Therefore, HLD and its active components can be used to develop new therapies for ALI and provide a new model for exploring complex TCM systems for treating ALI. In the experiment, the researchers used many compounds, for example, 9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium (cas: 2086-83-1Name: 9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium).

9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium (cas: 2086-83-1) belongs to isoquinoline derivatives. Quinoline and its derivatives are widely used as fungicides, biological agents, antibiotics, alkaloids, dyes, rubber chemicals and flavoring agents. The discovery of chloroquine, the most well-known drug containing this stent, has helped bring about decades of malaria control and treatment.Name: 9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Characterization of nitrogen transformation during microwave-induced pyrolysis of sewage sludge was written by Zhang, Jun;Tian, Yu;Zhu, Jia;Zuo, Wei;Yin, Linlin. And the article was included in Journal of Analytical and Applied Pyrolysis in 2014.Electric Literature of C9H7NO This article mentions the following:

The distribution of pyrolysis products and transformation of N in the char, tar, and gas fractions at different temperatures were investigated during microwave-induced pyrolysis of sewage sludge. The results showed that under the temperature ranges investigated, the thermal decomposition of sewage sludge was faster in the microwave pyrolysis than in the conventional pyrolysis. At temperatures >500°, microwave pyrolysis gave rise to a larger yield of biogas fraction (>10%) and less biotar yield (<15%) compared with those in the conventional pyrolysis. In addition, NH₃ and HCN were the main nitrogenous gas during microwave pyrolysis, in which HCN yields were nearly half of those of NH₃. FTIR and GC-MS anal. revealed that the pyrolysis of sewage sludge produced 3 N-containing compounds, including the amine/amide, heterocyclic-N and nitrile compounds, in the char and tar products. The pyrolysis temperature played significant roles on the transformation of N in the char, tar, and gas products during microwave pyrolysis. In the experiment, the researchers used many compounds, for example, 1-Hydroxyisoquinoline (cas: 491-30-5Electric Literature of C9H7NO).

1-Hydroxyisoquinoline (cas: 491-30-5) belongs to isoquinoline derivatives. Quinoline is a catabolite of tryptophan, the basic structure of some antihypertensive drugs, such as the peripheral vasodilators prazosin and doxazosin. Lewis acid activation and nucleophilic attack can produce multiple regioisomers in quinolines and pyridines; isoquinolines generally only undergo attack at the 1-position.Electric Literature of C9H7NO

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Bacteriostasis test on chuanhuning-berberine injection in vitro was written by Zeng, Yan;He, Yue-lin;Zhou, Ying-hua;Zeng, De-yong;Chen, Xian;Li, Qiu-yun. And the article was included in Zhongshouyi Yiyao Zazhi in 2008.Reference of 316-41-6 This article mentions the following:

The chuanhuning is the monopotassium salt of 14-deoxy-11,12- didehydroandrographolide-3,19-disuccinate formed by the andrographolide and succinic anhydride’s dehydration and esterification, salification. The berberine sulfate is the typical delegate of the isoquinoline anti bacteria drugs. In this paper, the in vitro bacteriostasis test of the complex chuanhuning-berberine injection is specially carried on to observe the synergistic reaction between chuanhuning and berberine. In the experiment, the researchers used many compounds, for example, 9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium sulfate(2:1) (cas: 316-41-6Reference of 316-41-6).

9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium sulfate(2:1) (cas: 316-41-6) belongs to isoquinoline derivatives. Quinoline and its derivatives are widely used as fungicides, biological agents, antibiotics, alkaloids, dyes, rubber chemicals and flavoring agents. Other industrial applications include their use as corrosion inhibitors, preservatives, and as solvents for resins and terpenes.Reference of 316-41-6

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Multifaceted role of polyphenols in treatment and management of neurodegenerative diseases was written by Islam, Fahadul;Islam, Mohaimenul Md;Khan Meem, Atkia Farzana;Nafady, Mohamed H.;Islam, Rezaul Md;Akter, Aklima;Mitra, Saikat;Alhumaydhi, Fahad A.;Emran, Talha Bin;Khusro, Ameer;Simal-Gandara, Jesus;Eftekhari, Aziz;Karimi, Fatemeh;Baghayeri, Mehdi. And the article was included in Chemosphere in 2022.SDS of cas: 2086-83-1 This article mentions the following:

Neurodegenerative diseases (NDDs) are conditions that cause neuron structure and/or function to deteriorate over time. Genetic alterations may be responsible for several NDDs. However, a multitude of physiol. systems can trigger neurodegeneration. Several NDDs, such as Huntington, Parkinson, and Alzheimer are assigned to oxidative stress (OS). Low concentrations of reactive oxygen and nitrogen species are crucial for maintaining normal brain activities, as their increasing concentrations can promote neural apoptosis. OS-mediated neurodegeneration has been linked to several factors, including notable dysfunction of mitochondria, excitotoxicity, and Ca ²⁺stress. However, synthetic drugs are commonly utilized to treat most NDDs, and these treatments have been known to have side effects during treatment. According to providing empirical evidence, studies have discovered many occurring natural components in plants used to treat NDDs. Polyphenols are often safer and have lesser side effects. As, epigallocatechin-3-gallate, resveratrol, curcumin, quercetin, celastrol, berberine, genistein, and luteolin have p-values less than 0.05, so they are typically considered to be statistically significant. These polyphenols could be a choice of interest as therapeutics for NDDs. This review highlighted to discusses the putative effectiveness of polyphenols against the most prevalent NDDs. In the experiment, the researchers used many compounds, for example, 9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium (cas: 2086-83-1SDS of cas: 2086-83-1).

9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium (cas: 2086-83-1) belongs to isoquinoline derivatives. The isoquinoline structure occurs in a considerable number of alkaloids in widely separated plant families. They are also used to make oil-soluble dyes, food colorants, pharmaceuticals, pH indicators and other organic compounds. SDS of cas: 2086-83-1

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Pd-Catalyzed arylation/oxidation of benzylic C-H bond was written by Xie, Yongju;Yang, Yuzhu;Huang, Lehao;Zhang, Xunbin;Zhang, Yuhong. And the article was included in Organic Letters in 2012.COA of Formula: C10H7NO2 This article mentions the following:

A palladium-catalyzed benzylic C-H arylation/oxidation reaction leading to diaryl ketones, e.g., I, has been accomplished. The indispensable role of the bidentate system is disclosed for this sequential process. This chem. offers a direct new access to a range of diaryl ketones. In the experiment, the researchers used many compounds, for example, Isoquinoline-1-carboxylic acid (cas: 486-73-7COA of Formula: C10H7NO2).

Isoquinoline-1-carboxylic acid (cas: 486-73-7) belongs to isoquinoline derivatives. Isoquinoline is a structural isomer of quinoline, which have antiseptic, antipyretic and anti-cyclic properties, and can be used as antimalarial drugs and for the preparation of other antimalarial medicine. It protonates to form salts upon treatment with strong acids, such as HCl. It forms adducts with Lewis acids, such as BF3.COA of Formula: C10H7NO2

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Synthesis of Azidoanilines by the Buchwald-Hartwig Amination was written by Sakata, Yuki;Yoshida, Suguru;Hosoya, Takamitsu. And the article was included in Journal of Organic Chemistry in 2021.Application of 105628-07-7 This article mentions the following:

A Buchwald-Hartwig amination compatible with azido functionality have been reported. Treatment of azidoaryl iodides RI (R = 4-azidophenyl, 4-azido-3,5-difluorophenyl, 3-azido-5-(azidomethyl)phenyl, etc.) and amines such as 4-[(tert-butoxy)carbonyl]piperazin-1-yl, fasudil, leelamine, etc. with fourth-generation Buchwald precatalyst coordinated by CPhos and sodium tert-butoxide in 1,4-dioxane at 50°C afforded the corresponding azidoanilines e.g., tert-Bu 4-(3-azidophenyl)piperazine-1-carboxylate while leaving the azido groups intact. The method showed a broad substrate scope and was applicable to the synthesis of diazido compounds e.g., tert-Bu 4-(3-azidophenyl)piperazine-1-carboxylate as photoaffinity probe candidates of pharmaceutical amines and multiazido platform mols. In the experiment, the researchers used many compounds, for example, 5-((1,4-Diazepan-1-yl)sulfonyl)isoquinoline hydrochloride (cas: 105628-07-7Application of 105628-07-7).

5-((1,4-Diazepan-1-yl)sulfonyl)isoquinoline hydrochloride (cas: 105628-07-7) belongs to isoquinoline derivatives. Being an analog of pyridine, isoquinoline is a weak base, with a pKa of 5.14. The Pomeranz–Fritsch reaction provides a method for the preparation of isoquinoline. This reaction uses a benzaldehyde and aminoacetoaldehyde diethyl acetal, which in an acid medium react to form isoquinoline.Application of 105628-07-7

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem