Tag: 100-200

A near infrared fluorescent probe for the detection and imaging of prolyl aminopeptidase activity in living cells was written by Liu, Xianjun;Zhang, Quan-Yu;Wang, Fenglin;Jiang, Jian-Hui. And the article was included in Analyst (Cambridge, United Kingdom) in 2019.Computed Properties of C6H5ClO2 The following contents are mentioned in the article:

Prolyl aminopeptidase (PAP) is an important exopeptidase which might be a biomarker for pathogen infection and a potential therapeutic target. However, very few fluorescent probes have been developed for detecting PAP activity. Here we report the development of the first near IR (NIR) turn-on fluorescent probe (NIR-PAP) for detecting and imaging PAP in living cells. The probe is prepared by reacting a cysteine-proline dipeptide with an acryloylated NIR fluorophore via a facile thiol-Michael addition reaction. NIR-PAP exhibits a dynamic response toward PAP in the range of 0.02-2.5 U mL^-1 with an estimated limit of detection of 0.013 U mL^-1. In vitro studies also reveal that the probe displays high specificity and robust responses toward PAP under physiol. pH and temperature conditions. Moreover, NIR-PAP is successfully introduced to detect and differentiate PAP activity in four different cell lines via both confocal fluorescence imaging and flow cytometry. Therefore, our probe may hold great promise in diagnosing infectious diseases caused by pathogens and screening therapeutic drugs in vivo. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Computed Properties of C6H5ClO2).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Computed Properties of C6H5ClO2

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

A Novel Thermal Stable Carbonyl Reductase from Bacillus cereus by Gene Mining as Biocatalyst for β-Carbonyl Ester Asymmetric Reduction Reaction was written by Qin, Yan-Li;Ruan, Tao;Hou, He-Shuai;Hou, Ya-Li;Yang, Zhong-Hua;Quan, Can. And the article was included in Catalysis Letters in 2019.Recommanded Product: Ethyl 4-chloro-3-oxobutanoate The following contents are mentioned in the article:

Carbonyl reductase, as biocatalyst, is very important to chiral alcs. production through asym. reduction of carbonyl compound A novel thermal stable carbonyl reductase from Bacillus cereus (BcCR) dependent on NADPH was obtained through a new genome mining strategy proposed in this work. By analyzing its amino acid sequence and structure, the BcCR should be a thermal stability and wide pH tolerance carbonyl reductase. Its gene was cloned by PCR with B. cereus genomic DNA as template. Its heterologous expression system, E. coli BL21 (DE3) plysS/pET28a-bccr, was constructed, and BcCR was successfully expressed. Enzymic properties show that at 57.5 °C and pH 7.0 it can reach maximum reaction rate. Its K_m and V_max to Et 4-chloroacetoacetate is 1.85 mmol/L and 0.22 μmol/(min·mg_protein), resp. It can catalyze the asym. reduction of the β-carbonyl compound, such as Et 4-chloroacetoacetate to Et S-4-chloro-3-hydroxybutyrate. This paper proposes a practical method for discovery of new carbonyl reductases, and provides a novel enzyme as biocatalyst for asym. reduction of β-carbonyl compound This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Recommanded Product: Ethyl 4-chloro-3-oxobutanoate).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) belongs to organic chlorides. Chlorination modifies the physical properties of hydrocarbons in several ways. These compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Recommanded Product: Ethyl 4-chloro-3-oxobutanoate

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

A near-infrared “turn-on” fluorescent probe with a self-immolative linker for the in vivo quantitative detection and imaging of hydrogen sulfide was written by Park, Chul Soon;Ha, Tai Hwan;Choi, Seon-Ae;Nguyen, Duong Nguyen;Noh, Seonmyeong;Kwon, Oh Seok;Lee, Chang-Soo;Yoon, Hyeonseok. And the article was included in Biosensors & Bioelectronics in 2017.Electric Literature of C6H5ClO2 The following contents are mentioned in the article:

Hydrogen sulfide is a critical biol. messenger, but few biol. compatible methods are available for its detection in vivo. Here, we describe the design and synthesis of a novel azide-functionalized near-IR probe, NIR-Az, for a hydrogen sulfide assay in which a self-immolative linker is incorporated between the azide moiety and phenolic dihydroxanthene fluorophore from a cyanine dye. A large “turn-on” near-IR fluorescence signal results from the reduction of the azide group of the fluorogenic moiety to an amine, in which the self-immolative linker also enhances the accessibility of NIR-Az to hydrogen sulfide. NIR-Az can select hydrogen sulfide from among 16 analytes, including cysteine, glutathione, and homocysteine. By exploiting the superior properties of NIR-Az, such as its good biocompatibility and rapid cell internalization, we successfully demonstrated its usefulness in monitoring both the concentration- and time-dependent variations of hydrogen sulfide in living cells and animals (detection limit less than 0.26μM), thereby providing a powerful approach for probing hydrogen sulfide chem. in biol. systems. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Electric Literature of C6H5ClO2).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. The hydrocarbon processing industry (HPI) and others are affected by damage caused by these substances. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Electric Literature of C6H5ClO2

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Deep eutectic solvents boosting solubilization and Se-functionalization of heteropolysaccharide: Multiple hydrogen bonds modulation was written by Sun, Yaxu;Jia, Xiaoyan;Yang, Ru;Qin, Xiaojie;Zhou, Xiaoxue;Zhang, Hui;Kong, Weibao;Zhang, Ji;Wang, Junlong. And the article was included in Carbohydrate Polymers in 2022.Application In Synthesis of Tetramethylammonium chloride The following contents are mentioned in the article:

In this study, the favorable feasibility of deep eutectic solvents (DESs) in solubilization and functionalization of natural heteropolysaccharide was validated by experiments and d. functional theory calculations This revealed that choline chloride-based DES/DMSO (DMSO) binary mixed solvents possessed more and stronger hydrogen bonding sites, facilitating the balance between disruption and reconstruction of hydrogen bonds within branched heteropolysaccharide from Artemisia sphaerocephala (PAS) and achieving efficient solubilization. Further, due to the full exposure and activation of polysaccharide hydroxyls, the efficiency of DES/DMSO-mediated novel Se-functionalization was substantially enhanced compared to the conventional selenylation methods. The derivative exhibited conversion to lower mol. mass with rigid solution conformation based on co-solvent effect and predominant acidic environment influence. This study offered a framework for exploring the potential of individualized polysaccharide functionalization by modulating DES constituents to achieve multiple controls in terms of conversion efficiency and derivative structure. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Application In Synthesis of Tetramethylammonium chloride).

Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Application In Synthesis of Tetramethylammonium chloride

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Dichlororesorufin-Based Colorimetric and Fluorescent Probe for Ultrasensitive Detection of Mercury Ions in Living Cells and Zebrafish was written by Duan, Qingxia;Lv, Xiaoyu;Liu, Caiyun;Geng, Zhuofan;Zhang, Fenfen;Sheng, Wenlong;Wang, Zuokai;Jia, Pan;Li, Zilu;Zhu, Hanchuang;Zhu, Baocun. And the article was included in Industrial & Engineering Chemistry Research in 2019.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

In this work, a simple dichlororesorufin-based colorimetric and fluorescent probe R-Hg with the recognition receptor of carbonothioate was designed, synthesized, and exploited to determine mercury ions in aqueous solution and living cells as well as in zebrafish. After a series of anal. tests, probe R-Hg showed some excellent characteristics, such as ultrasensitivity, high selectivity, and good water solubility The probe solution exhibited a very large fluorescence enhancement (about 150-fold) upon addition of Hg²⁺. Addnl., probe R-Hg exhibited excellent sensitivity, which could quantificationally detect Hg²⁺ at the nanomolar level, and the detection limit was 0.49 nM. Moreover, probe R-Hg could be used as a “naked-eye” probe for monitoring Hg²⁺, because the color of its solution transformed remarkably from yellow into pink with the participation of Hg²⁺. Importantly, probe R-Hg has potential application value and has been successfully applied to the determination of Hg²⁺ in practical water samples and in living RAW 264.7 cells as well as in zebrafish as a bioimaging reagent. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Category: chlorides-buliding-blocks).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Category: chlorides-buliding-blocks

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Molecular Modelling, Optical and Electrochemical Properties of Novel 3-Arylazo-thieno[3,2-b]pyranone for Photovoltaic Application was written by Elseman, Ahmed M.;Radwan, Ahmed S.;Makhlouf, Mohamed M.;Rashad, Mohamed M.. And the article was included in Russian Journal of General Chemistry in 2022.Recommanded Product: 638-07-3 The following contents are mentioned in the article:

Three 3-arylazo-thieno[3,2-b]pyranone dyes HTM1-3 have been synthesized by cyclocondensation of Et 2-arylazo-(2-phenylthiocarbamoyl)acetate derivatives with Et 4-chloro-3-oxobutanoate in ethanolic sodium ethoxide solution ¹R, ¹H and, ¹³C NMR, and mass spectra have confirmed the structure of dyes. The impact of substituents (Me, methoxy and chloride) on phys., chem. and optoelectronic properties of the synthesized dyes has been studied. Optical properties such as extinction coefficient, photoluminescence and optical bandgap of thin films have been studied. The optical energy gap has been computed in the range of 1.97- 2.18 eV. Thermal anal., mol. modeling and electronic energy levels have been investigated. Typically, these small mols. exhibit promising charge carrier mobility and are proposed to be strong candidates for p-type semiconductors (hole transport layer). Overall, because of their excellent optical absorption, appropriate energy-level alignment and favorable mol. packing, the prepared thienopyran materials could be a good choice for solar cell applications and light-harvesting capacity. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Recommanded Product: 638-07-3).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Recommanded Product: 638-07-3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Excellent antitumor and antimetastatic activities based on novel coumarin/pyrazole oxime hybrids was written by Dai, Hong;Huang, Meiling;Qian, Jianqiang;Liu, Ji;Meng, Chi;Li, Yangyang;Ming, Guxu;Zhang, Ting;Wang, Senling;Shi, Yujun;Yao, Yong;Ge, Shushan;Zhang, Yanan;Ling, Yong. And the article was included in European Journal of Medicinal Chemistry in 2019.Recommanded Product: 4-Chlororesorcinol The following contents are mentioned in the article:

A series of hybridsbased on coumarin/pyrazole oxime I (n = 1, 2; R = 3-F, 4-I, 2-CH₃, etc.) have been synthesized, and exhibited good to excellent antitumor activities. Compound I (n = 2; R = 4-Cl) has shown remarkable anticancer effect on SMMC-7721 cells (IC₅₀ = 2.08 μM), which is considerably lower than 5-FU (IC₅₀ = 37.8 μM) and similar to ADM (IC₅₀ = 2.67 μM), with little effect on normal hepatic cells LO2. Notably, the suppression experiments of metastatic activities reveal that I (n = 2; R = 4-Cl) also displays significant anti-metastasis effects through inhibiting cell migration and invasion in highly metastatic SMMC-7721 cell line, and dose-dependently reverses TGF-β1-induced epithelial-mesenchymal transition (EMT) procedure better than ADM. Finally, I (n = 2; R = 4-Cl) also possesses low acute toxicity and potent tumor growth inhibitory property against SMMC-7721 cell lines in vivo. These findings suggest that novel coumarin/pyrazole oxime hybrids are promising therapeutic agent candidates for further research. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Recommanded Product: 4-Chlororesorcinol).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Recommanded Product: 4-Chlororesorcinol

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Targeting prostate cancer with compounds possessing dual activity as androgen receptor antagonists and HDAC6 inhibitors was written by Jadhavar, Pradeep S.;Ramachandran, Sreekanth A.;Riquelme, Eduardo;Gupta, Ashu;Quinn, Kevin P.;Shivakumar, Devleena;Ray, Soumya;Zende, Dnyaneshwar;Nayak, Anjan K.;Miglani, Sandeep K.;Sathe, Balaji D.;Raja, Mohd.;Farias, Olivia;Alfaro, Ivan;Belmar, Sebastian;Guerrero, Javier;Bernales, Sebastian;Chakravarty, Sarvajit;Hung, David T.;Lindquist, Jeffrey N.;Rai, Roopa. And the article was included in Bioorganic & Medicinal Chemistry Letters in 2016.Synthetic Route of C6H12BrCl The following contents are mentioned in the article:

While enzalutamide and abiraterone are approved for treatment of metastatic castration-resistant prostate cancer (mCRPC), approx. 20-40% of patients have no response to these agents. It has been stipulated that the lack of response and the development of secondary resistance to these drugs may be due to the presence of AR splice variants. HDAC6 has a role in regulating the androgen receptor (AR) by modulating heat shock protein 90 (Hsp90) acetylation, which controls the nuclear localization and activation of the AR in androgen-dependent and independent scenarios. With dual-acting AR-HDAC6 inhibitors it should be possible to target patients who don’t respond to enzalutamide. Herein, the authors describe the design, synthesis and biol. evaluation of dual-acting compounds which target AR and are also specific towards HDAC6. The efforts led to compound I which was found to have potent dual activity (HDAC6 IC₅₀ = 0.0356 μM and AR binding IC₅₀ = <0.03 μM). Compound I was further evaluated for antagonist and other cell-based activities, in vitro stability and pharmacokinetics. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Synthetic Route of C6H12BrCl).

1-Bromo-6-chlorohexane (cas: 6294-17-3) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Synthetic Route of C6H12BrCl

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Comb-Like Poly(Ether-Sulfone) Membranes Derived from Planar 6,12-Diaryl-5,11-Dihydroindolo[3,2-b]Carbazole Monomer for Alkaline Fuel Cells was written by Zuo, Peipei;Su, Yumiao;Li, Wenmu. And the article was included in Macromolecular Rapid Communications in 2016.Application of 6294-17-3 The following contents are mentioned in the article:

Highly conductive anion exchange membranes (AEMs), along with the ability to suppress swelling, are critical but challenging requirements for alk. fuel cell applications. To achieve this criterion, a series of poly(ether sulfone)s (PESFs) with flexible alkyl imidazolium pendants attached directly on large planar 6,12-bis(4-hydroxyphenyl)-5,11-dihydroindolo[3,2-b]carbazole (DCP) units is reported. The planar DCP units stabilize the hydrophobic phase through strong π-π interactions and also facilitate the formation of ionic conducting channels through self assembly of hydrophilic pendants. The AEM prepared here, based on rational design, has a relatively low ion exchange capacity (IEC) of 1.86 × 10^-3 mol g^-1 and exhibits high hydroxide ion (OH^–) conductivity of 101 × 10^-3 S cm^-1, a low swelling ratio of 9.3% and a water uptake of 39.6%. Furthermore, the AEMs reported in this paper have excellent stability in 1 M NaOH solution at 80°C over 500 h. Therefore, the synthesized polymers offer a new insight into the design of high performance materials for AEMs. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Application of 6294-17-3).

1-Bromo-6-chlorohexane (cas: 6294-17-3) belongs to organic chlorides. Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. The hydrocarbon processing industry (HPI) and others are affected by damage caused by these substances. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Application of 6294-17-3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthesis and biological evaluation of novel chromonyl enaminones as α-glucosidase inhibitors was written by Mendieta-Moctezuma, Aaron;Rugerio-Escalona, Catalina;Villa-Ruano, Nemesio;Gutierrez, Rsuini U.;Jimenez-Montejo, Fabiola E.;Fragoso-Vazquez, M. Jonathan;Correa-Basurto, Jose;Cruz-Lopez, Maria C.;Delgado, Francisco;Tamariz, Joaquin. And the article was included in Medicinal Chemistry Research in 2019.Application of 95-88-5 The following contents are mentioned in the article:

Series of novel chromonyl enaminones 1a-e and 2a-e and 3-alkylated chromones 3a-e were synthesized and evaluated in vitro as α-glucosidase inhibitors as well as antioxidant and antifungal agents. Antifungal activity was tested on strains of Candida albicans. Compounds 2a and 2d-e showed good inhibition of the α-glucosidase enzyme (IC₅₀ = 5.5, 0.9, and 1.5 mM, resp.), their effect being better than that of 1a-e, 3a-e, and acarbose (the standard, IC₅₀ = 7.73 ± 0.9 mM). The structure-activity relationship suggests that the Ph group at the C-3 position of the chromone ring system and the 4-chlorophenyl group at the enaminone moiety (derivatives 2) increased the inhibition of α-glucosidase. Compounds 2a-e exhibited a slight antioxidant effect, and compounds 3a-e a moderate antifungal activity against C. albicans (IC₅₀ 70.5-83.1 μg/mL). Docking studies revealed that compounds 2 interact with the α-glucosidase residues of the binding pocket. Therefore, these chromone derivatives may be considered as potential α-glucosidase inhibitors, as well as antifungal agents against some Candida strains of yeast. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Application of 95-88-5).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. Chlorination modifies the physical properties of hydrocarbons in several ways. These compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. Alkyl chlorides are versatile building blocks in organic chemistry. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available.Application of 95-88-5

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics