Category: 2645-22-9

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 4,4-Dipyridyl Disulfide, is researched, Molecular C10H8N2S2, CAS is 2645-22-9, about Synthesis of Sulfonimidamides from Sulfenamides via an Alkoxy-amino-λ6-sulfanenitrile Intermediate, the main research direction is sulfenamide hypervalent ammonium carbamate iodine oxidation imination; sulfonimidamide preparation; hypervalent iodine; reactive intermediates; sulfonimidamides; sulfur; synthetic methods.Recommanded Product: 2645-22-9.

Sulfonimidamides are intriguing new motifs for medicinal and agrochem., and provide attractive bioisosteres for sulfonamides. However, there remain few operationally simple methods for their preparation Here, the synthesis of NH-sulfonimidamides is achieved directly from sulfenamides, themselves readily formed in one step from amines and disulfides. A highly chemoselective and one-pot NH and O transfer is developed, mediated by PhIO in iPrOH, using ammonium carbamate as the NH source, and in the presence of 1 equiv of acetic acid. A wide range of functional groups are tolerated under the developed reaction conditions, which also enables the functionalization of the antidepressants desipramine and fluoxetine and the preparation of an aza analog of the drug probenecid. The reaction is shown to proceed via different and concurrent mechanistic pathways, including the formation of novel S N sulfanenitrile species as intermediates. Several alkoxy-amino-λ6-sulfanenitriles are prepared with different alcs., and shown to be alkylating agents to a range of nucleophiles.

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Bromide – Wikipedia,
bromide – Wiktionary

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 2645-22-9, is researched, Molecular C10H8N2S2, about Trimethylsilyl reporter groups for NMR studies of conformational changes in G protein-coupled receptors, the main research direction is trimethylsilyl NMR GPCR conformational change; G protein-coupled receptor; nuclear magnetic resonance; trimethylsilylmethanethiol; β2-adrenergic receptor.Name: 4,4-Dipyridyl Disulfide.

Large membrane proteins such as G protein-coupled receptors (GPCRs) are difficult for NMR study due to severe signal overlaps and unfavorable relaxation properties. The authors used a trimethylsilyl (TMS) group as a reporter group for 1H NMR study of conformational changes in proteins, using high-intensity 1H NMR signals near 0 p.p.m. The β2-adrenergic receptor was labeled with TMS groups at two cysteines located at the cytoplasmic ends of helixes VI and VII. Binding of various ligands led to changes in 1H NMR signals, which manifested that helix VI is sensitive to G protein-specific activation, whereas helix VII is sensitive to β-arrestin-specific activation. Thus, the TMS group is a useful reporter group in NMR for studying conformational changes in membrane proteins such as GPCRs.

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Reference:
Bromide – Wikipedia,
bromide – Wiktionary

Formula: C10H8N2S2. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 4,4-Dipyridyl Disulfide, is researched, Molecular C10H8N2S2, CAS is 2645-22-9, about Mitochondria-Accumulating Rhenium(I) Tricarbonyl Complexes Induce Cell Death via Irreversible Oxidative Stress and Glutathione Metabolism Disturbance. Author is Wang, Fang-Xin; Liang, Jin-Hao; Zhang, Hang; Wang, Ze-Hua; Wan, Qin; Tan, Cai-Ping; Ji, Liang-Nian; Mao, Zong-Wan.

Mitochondria play a critical role in tumorigenesis. Targeting mitochondria and disturbing related events have been emerging as a promising way for chemotherapy. In this work, two binuclear rhenium(I) tricarbonyl complexes of the general formula [Re2(CO)6(dip)2L](PF6)2 (dip = 4,7-diphenyl-1,10-phenanthroline; L = 4,4′-azopyridine (ReN) or 4,4′-dithiodipyridine (ReS)) were synthesized and characterized. ReN and ReS can react with glutathione (GSH). They exhibit good in vitro anticancer activity against cancer cell lines screened. Besides, they can target mitochondria, cause oxidative stress, and disturb GSH metabolism Both ReN and ReS can induce necroptosis and caspase-dependent apoptosis simultaneously. We also demonstrate that ReN and ReS can inhibit tumor growth in nude mice bearing carcinoma xenografts. Our study shows the potential of Re(I) complexes as chemotherapeutic agents to kill cancer cells via a mitochondria-to-cellular redox strategy.

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Reference:
Bromide – Wikipedia,
bromide – Wiktionary

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 2645-22-9, is researched, SMILESS is C1(SSC2=CC=NC=C2)=CC=NC=C1, Molecular C10H8N2S2Journal, Article, Research Support, N.I.H., Intramural, Research Support, Non-U.S. Gov’t, Biomaterials called Yolk-shell nanovesicles endow glutathione-responsive concurrent drug release and T1 MRI activation for cancer theranostics, Author is Liu, Dahai; Zhou, Zijian; Wang, Xinyu; Deng, Hongzhang; Sun, Lin; Lin, Haixin; Kang, Fei; Zhang, Yong; Wang, Zhantong; Yang, Weijing; Rao, Lang; Yang, Kuikun; Yu, Guocan; Du, Jianshi; Shen, Zheyu; Chen, Xiaoyuan, the main research direction is doxorubicin antitumor MRI contrast agent iron oxide; Concurrent theranostics; Iron oxide; MRI; Metal-drug coordination; Nanovesicles.Formula: C10H8N2S2.

The effort of incorporating therapeutic drugs with imaging agents has been one of the mainstreams of nanomedicine, which holds great promise in cancer treatment in terms of monitoring therapeutic drug activity and evaluating prognostic index. However, it is still tech. challenging to develop nanomedicine endowing a spatiotemporally controllable mechanism of drug release and activatable imaging capability. Here, we developed a yolk-shell type of GSH-responsive nanovesicles (NVs) in which therapeutic drug (Doxorubicin, DOX) and magnetic resonance imaging (MRI) contrast agent (ultrasmall paramagnetic iron oxide nanoparticles, USPIO NPs) formed complexes (denoted as USD) and were encapsulated inside the NVs. The formation of USD complexes is mediated by both the electrostatic adsorption between DOX and poly(acrylic acid) (PAA) polymers and the DOX-iron coordination effect on USPIO NPs. The obtained USD NVs showed a unique yolk-shell structure with restrained drug activity and quenched T1 MRI contrast ability which, on the other hand, can respond to glutathione (GSH) and lead to drug release and T1 contrast activation in a spatiotemporally concurrent manner. Furthermore, the USD NVs exhibited great potential to kill HCT116 cancer cells in vitro and effectively inhibit the tumor growth in vivo. This study may shed light on the design of sophisticated nanotheranostics in precision nanomedicine.

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Reference:
Bromide – Wikipedia,
bromide – Wiktionary

Product Details of 2645-22-9. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 4,4-Dipyridyl Disulfide, is researched, Molecular C10H8N2S2, CAS is 2645-22-9, about Electrochemical consideration of electrostatic interaction of charged molecules with partially overlapped electric field: zwitterions and proteins. Author is Sugimoto, Yu; Fujieda, Nobutaka; Kano, Kenji.

Electrostatic interactions greatly affect the interaction and activity of ions and charged mols. In this study, electrochem. techniques were applied to evaluate the electrostatic interactions of zwitterions and proteins as charged mols. that have partially overlapped elec. field. The formal potential of a probe redox couple, [Fe(CN)6]3-/4-, was used as a measure of the electrostatic interaction between the probe ions and linear amino acids as zwitterions. The zwitterions clearly showed electrostatic interaction with [Fe(CN)6]3-/4-, but the strength was weakened by the partial overlapping of the elec. field of oppositely charged sites. Furthermore, we investigated the electrostatic interaction between proteins as multivalent polymeric ions using quinohemoprotein amine dehydrogenase and its electron accepter proteins (amicyanin, cytochrome c550, and horse heart cytochrome c). The second-order reaction rate constant (k) of the intermol. electron transfer between the proteins was electrochem. determined in various ionic strengths (I). The I dependences of k were explained not by the net charges but by the local charges around the interaction interfaces of the proteins.

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Reference:
Bromide – Wikipedia,
bromide – Wiktionary

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 4,4-Dipyridyl Disulfide(SMILESS: C1(SSC2=CC=NC=C2)=CC=NC=C1,cas:2645-22-9) is researched.Formula: C7H12O3. The article 《Oxidation of thiol using ionic liquid-supported organotelluride as a recyclable catalyst》 in relation to this compound, is published in Catalysts. Let’s take a look at the latest research on this compound (cas:2645-22-9).

Organotellurium compounds are known to be useful oxidation reagents. For developing a recoverable and reusable reagent, this paper describes the use of an ionic liquid (IL) support for the organotellurium reagent and its application as a recyclable catalyst for thiol oxidation We have successfully prepared a novel di-Ph telluride derivative 5 bearing an imidazolium hexafluorophosphate group in its structure. It is found that the IL-supported di-Ph telluride 5 efficiently catalyzed the aerobic oxidation of various thiols in [bmim]PF6 solution under photosensitized conditions to provide the corresponding disulfides in excellent yields. The product can be isolated by simple ether extraction The IL-supported catalyst 5 remaining in the ionic liquid phase can be reused for five successive runs while retaining high catalytic activity (97% yield even in the fifth run).

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Reference:
Bromide – Wikipedia,
bromide – Wiktionary