Tag: M.W=150-200

Huang, Chao; Zhu, Kaifang; Zhang, Yingying; Shao, Zhichao; Wang, Dandan; Mi, Liwei; Hou, Hongwei published the artcile< Directed Structural Transformations of Coordination Polymers Supported Single-Site Cu(II) Catalysts To Control the Site Selectivity of C-H Halogenation>, Product Details of C7H7ClO2, the main research area is imidazolediyl bistetrazole manganese copper coordination polymer preparation crystal structure; coordination polymer imidazolediylbistetrazole manganese copper catalyst carbon hydrogen halogenation; crystal mol structure imidazolediyl bistetrazole manganese copper coordination polymer.

A main difficulty in C-H bond functionalization is to undertake the catalyst control accurately where the reaction takes place. In this work, to achieve highly effective and regioselective single-site catalysts, a three-dimensional (3D) rhombus-like framework of {[Mn(Hidbt)DMF]·H2O}n (1) [H3idbt = 5,5′-(1H-imidazole-4,5-diyl)-bis(2H-tetrazole)] containing coordinated DMF mols. was constructed. For the dissolution-recrystallization structural transformation process, attractive structural transformations proceeded from 1 to a new crystalline species formulated as {[Mn3(idbt)2(H2O)2]·3H2O}n (2) with a 3D window-like architecture, and then the Mn ions in 2 could be exchanged with Cu ions through cation exchange in a single-crystal to single-crystal fashion to produce the Cu-exchanged product {[Mn2Cu(idbt)2(H2O)2]·3H2O}n (2a), which had a window-like framework like that of 2. Furthermore, 2 and 2a were used as heterogeneous catalysts for the regioselective C-H halogenation of phenols with N-halosuccinimides (NCS and NBS) to produce the site selective single monohalogenated products. It was found that the catalytic activity and site selectivity of 2a were much higher than those of 2, because the unique structural features of 2a with the uniformly dispersed CuII active centers served as a single-site catalyst with a site-isolated and well-defined platform to promote the C-H halogenation reaction in regiocontrol and guide an orientation that favored the para selectivity during the reaction process.

Inorganic Chemistry published new progress about C-H bond activation. 16766-30-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C7H7ClO2, Product Details of C7H7ClO2.

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

Yin, Jinya; Landward, Michael B.; Rainier, Jon D. published the artcile< Photoelectrocyclization Reactions of Amidonaphthoquinones>, COA of Formula: C9H7ClO, the main research area is griffithazanone marcanine preparation antibacterial activity; acrylamide naphthoquinone preparation photoelectrocyclization; azaanthraquinone preparation antibacterial activity.

Readily available acrylamide naphthoquinones, e.g., I (R1 = H, Me; R2 = H, Me, Ph, 2-ClC6H4, 3-MeOC6H4), can be converted into the corresponding aza-anthraquinones, e.g., II, using 6π-photoelectrocyclization reactions. Not only do these reactions not proceed thermally but, as demonstrated here, they can be used to generated a range of aza-anthraquinone and aza-tetracycline derivatives including the natural products griffithazanone A and marcanine A. Several of the aza-anthraquinones showed antibacterial activity.

Journal of Organic Chemistry published new progress about Antibacterial agents. 17082-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H7ClO, COA of Formula: C9H7ClO.

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

Xu, Hang; Yan, Zhong-zuo; Guo, Meng-bi; An, Ran; Wang, Xin; Zhang, Rui; Mou, Yan-hua; Hou, Zhuang; Guo, Chun published the artcile< Lead optimization generates selenium-containing miconazole CYP51 inhibitors with improved pharmacological profile for the treatment of fungal infections>, Safety of 1-Chloro-2-(chloromethyl)benzene, the main research area is benzylselanyl dichlorophenylethyltriazole preparation antifungal antitumor SAR pharmacokinetics docking; dichlorophenyl phenylselanylethylimidazole preparation antifungal antitumor SAR pharmacokinetics docking; Antifungal; CYP51; Miconazole; Selenium; Superior pharmacological profile.

A series of selenium-containing miconazoles. compounds I, II [R = H, 3-F, 2-Me, etc. ; X= F, Cl], III [R = H, 3-F, 2-Me, etc.; X= F, C] were identified as potent antifungal drugs in our previous study. Representative compound I (MIC = 0.01μg/mL against C.alb. 5314) proved efficacious in inhibiting the growth of fungal pathogens. However, further study showed lead compound I exhibited potential hemolysis, significant cytotoxic effect and unfavorable metabolic stability and was therefore modified to overcome these drawbacks. In this article, the further optimization of selenium-containing miconazole derivatives resulted in the discovery of similarly potent compound II [R = 4-F ; X= F] (MIC = 0.02μg/mL against C.alb. 5314), exhibiting a superior pharmacol. profile with decreased rate of metabolism, cytotoxic effect and hemolysis. Furthermore, compound II [R = 4-F ; X= F] showed fungicidal activity against Candida albicans and significant effects on the treatment of resistant Candida albicans infections. Meanwhile, compound II [R = 4-F ; X= F] not only could reduce the ergosterol biosynthesis pathway by inhibiting CYP51, but also inhibited biofilm formation. More importantly, compound II [R = 4-F ; X= F] also shows promising in vivo efficacy after i.p. injection and the PK study of compound II [R = 4-F ; X= F] was evaluated. In addition, mol. docking studies provide a model for the interaction between the compound II [R = 4-F ; X= F] and the CYP51 protein. Overall, it was believed that these selenium-containing miconazole compounds can be further developed for the potential treatment of fungal infections.

European Journal of Medicinal Chemistry published new progress about Antitumor agents. 611-19-8 belongs to class chlorides-buliding-blocks, and the molecular formula is C7H6Cl2, Safety of 1-Chloro-2-(chloromethyl)benzene.

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

Dejouy, Garance; Renault, Kevin; Bonnin, Quentin; Chevalier, Arnaud; Michaudet, Cedric; Picquet, Michel; Valverde, Ibai E.; Romieu, Anthony published the artcile< Fluorogenic Enzyme-Triggered Domino Reactions Producing Quinoxalin-2(1H)-one-based Heterocycles>, Synthetic Route of 27841-33-4, the main research area is fluorogenic quinoxalin heterocycle enzyme triggered.

A simple and effective biocompatible domino reaction triggered by a model protease and leading to the formation of strongly fluorescent quinoxalin-2(1H)-one N-heterocycles is described. Some pos. attributes including versatility and the ability to provide outstanding fluorescence “”OFF-ON”” responses were revealed by this work. They open the way for practical applications of this novel type of “”covalent-assembly””-based fluorescent probe in the fields of sensing and bioimaging.

Organic Letters published new progress about Confocal microscopy. 27841-33-4 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H12N2O2, Synthetic Route of 27841-33-4.

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

Alhazmi, Razan; Tong, Shirley; Darwish, Shaban; Khanjani, Elina; Khungar, Bharti; Chawla, Swati; Zheng, Zhonghui; Chamberlin, Richard; Parang, Keykavous; Yang, Sun published the artcile< Bis-Cinnamamide Derivatives as APE/Ref-1 Inhibitors for the Treatment of Human Melanoma>, Quality Control of 17082-09-6, the main research area is cinnamamide derivative APE inhibitor treatment human melanoma; APE/Ref-1; human melanoma; reactive oxygen species (ROS); redox regulation; small molecular inhibitors.

Human malignant melanoma exhibits imbalances in redox status, leading to activation of many redox-sensitive signaling pathways. APE/Ref-1 is a multifunctional protein that serves as a redox chaperone that regulates many nuclear transcription factors and is an important mechanism in cancer cell survival of oxidative stress. Previous studies showed that APE/Ref-1 is a potential druggable target for melanoma therapy. In this study, we synthesized a novel APE/Ref-1 inhibitor, bis-cinnamoyl-1,12-dodecamethylenediamine (2). In a xenograft mouse model, compound 2 treatment (5 mg/kg) significantly inhibited tumor growth compared to the control group, with no significant systemic toxicity observed We further synthesized compound 2 analogs to determine the structure-activity relationship based on their anti-melanoma activities. Among those, 4-hydroxyphenyl derivative (11) exhibited potent anti-melanoma activities and improved water solubility compared to its parental compound 2. The IC50 of compound 11 was found to be less than 0.1 μM. Compared to other known APE/Ref-1 inhibitors, compound 11 exhibited increased potency in inhibiting melanoma proliferation. As determined by luciferase reporter analyses, compound 2 was shown to effectively inhibit H2O2-activated AP-1 transcription activities. Targeting APE/Ref-1-mediated signaling using pharmaceutical inhibitors is a novel and effective strategy for melanoma treatment with potentially high impact.

Molecules published new progress about Activator protein 1 Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 17082-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H7ClO, Quality Control of 17082-09-6.

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

Zhang, Zhi-Jun; Zhou, Xu; Li, Dashan; Chen, Yang; Xiao, Wen-Wen; Li, Rong-Tao; Shao, Li-Dong published the artcile< Aerobic Copper-Catalyzed Intramolecular Cascade Oxidative Isomerization/[4+4] Cyclization of 2,2'-Disubstituted Stilbenes>, Related Products of 53581-86-5, the main research area is dibenzofurofuran benzofuroindole dibenzothienofuran diastereoselective preparation; copper catalyst stereoselective oxidative isomerization cyclization hydroxystilbene; mechanism tandem stereoselective oxidative isomerization cyclization hydroxystilbene.

An aerobic copper-catalyzed cascade oxidative isomerization/[4+4] cyclization of 2,2′-disubstituted stilbenes such as I is described. Under the mild CuCl/N,N’-di-tert-butyl-1,2-ethanediamine (DBED)/air catalytic system, various 5,10-heteroatom-containing tetrahydroindeno[2,1-a]indenes such as dibenzofurofuran II were efficiently prepared through the difunctionalizations of alkenes in a highly atom economic manner. Mechanistic investigations suggested the bicyclic product was likely formed through a sequence of rapid single-electron oxidation/[4+4] cyclization from 2,2′-disubstituted stilbene. The antarafacial manner of the thermally allowed [4+4] cyclization was further proven by series of control experiments and d. functional theory calculations Our findings provide an important addition to the aerobic copper-catalyzed oxidative cyclization.

Journal of Organic Chemistry published new progress about Benzofurans Role: PRP (Properties), SPN (Synthetic Preparation), PREP (Preparation) (benzofuro-). 53581-86-5 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H7ClO2, Related Products of 53581-86-5.

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

Guo, Lei; Plietker, Bernd published the artcile< β-Ketoesters as Mono- or Bisnucleophiles: A Concise Enantioselective Total Synthesis of (-)-Englerin A and B>, SDS of cas: 17082-09-6, the main research area is englerin A B enantioselective synthesis; antitumor agents; asymmetric catalysis; natural products; organocatalysis; total synthesis.

A short enantioselective total synthesis of englerin A, a guaiane sesquiterpene with significant in vitro antitumor activity, is reported. Key features of this total synthesis are an organocatalytic asym. decarboxylative aldol reaction, a neighboring-group-participating [4+3] cycloaddition, a novel one-pot Heck coupling/regioselective 1,4-hydrosilylation/Tamao-Fleming oxidation cascade, and a kinetic CBS reduction, generating the optically pure natural product in 6.7% overall yield over twelve steps starting from methylglyoxal. Selective saponification of the more reactive glycolic ester moiety of englerin A also gave (-)-englerin B.

Angewandte Chemie, International Edition published new progress about [4+3] Cycloaddition reaction. 17082-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H7ClO, SDS of cas: 17082-09-6.

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

Wang, Xi; Wu, Chun-Yan; Li, Yue-Sheng; Dong, Zhi-Bing published the artcile< Three-Component Synthesis of 2-Substituted Thiobenzoazoles Using Tetramethyl Thiuram Monosulfide (TMTM) as Thiocarbonyl Surrogate>, Name: 1-Chloro-2-(chloromethyl)benzene, the main research area is thiobenzoazole preparation tetramethyl thiuram monosulfide thiocarbonyl.

A metal-free synthesis of 2-benzyl/allyl-substituted thiobenzoazoles was developed starting from tetra-Me thiuram monosulfide (TMTM) which served as thiocarbonyl surrogate. By using 2-aminophenols (or 2-aminothiophenols, or 1,2-phenylenediamines) and TMTM as starting materials, 2-mercaptobenzoazoles could be synthesized efficiently. The subsequent C-S bond formation with benzyl/allyl halides gave the final products (2-benzyl/allyl-substituted thiobenzoazoles) with good to excellent yields. The metal-free conditions, inexpensive and easily available starting materials, and broad substrate scope are the advantageous features of this protocol.

European Journal of Organic Chemistry published new progress about Allylic halides Role: RCT (Reactant), RACT (Reactant or Reagent). 611-19-8 belongs to class chlorides-buliding-blocks, and the molecular formula is C7H6Cl2, Name: 1-Chloro-2-(chloromethyl)benzene.

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