Month: November 2022

On September 6, 2013, Hama, Takuo; Ge, Shaozhong; Hartwig, John F. published an article.Name: tert-Butyl 2-(4-nitrophenyl)acetate The title of the article was Palladium-Catalyzed α-Arylation of Zinc Enolates of Esters: Reaction Conditions and Substrate Scope. And the article contained the following:

The intermol. α-arylation of esters by palladium-catalyzed coupling of aryl bromides with zinc enolates of esters is reported. Reactions of three different types of zinc enolates have been developed. α-Arylation of esters occurs in high yields with isolated Reformatsky reagents, with Reformatsky reagents generated from α-bromo esters and activated zinc, and with zinc enolates generated by quenching alkali metal enolates of esters with zinc chloride. The use of zinc enolates, instead of alkali metal enolates, greatly expands the scope of the arylation of esters. The reactions occur at room temperature or at 70° with bromoarenes containing cyano, nitro, ester, keto, fluoro, enolizable hydrogen, hydroxyl, or amino functionality and with bromopyridines. The scope of esters encompasses acyclic acetates, propionates, and isobutyrates, α-alkoxyesters, and lactones. The arylation of zinc enolates of esters was conducted with catalysts bearing the hindered pentaphenylferrocenyl di-tert-butylphosphine (Q-phos) or the highly reactive dimeric Pd(I) complex {[P(t-Bu)3]PdBr}2. The experimental process involved the reaction of tert-Butyl 2-(4-nitrophenyl)acetate(cas: 29704-38-9).Name: tert-Butyl 2-(4-nitrophenyl)acetate

The Article related to palladium catalysis alpha arylation ester aryl bromide zinc enolate, General Organic Chemistry: Synthetic Methods and other aspects.Name: tert-Butyl 2-(4-nitrophenyl)acetate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On March 1, 2021, Zhang, Liang; Nagaraju, Sakkani; Paplal, Banoth; Lin, Yunliang; Liu, Shuhua published an article.Computed Properties of 10472-24-9 The title of the article was Sulfonium Salts Enable the Direct Sulfenylation of Activated C(sp3)-H Bonds. And the article contained the following:

Herein, the direct α-sulfenylation of a series of β-dicarbonyl, β-ketophosphonate, and β-ketonitrile compounds, mediated by sulfonium salts has been described. Traditionally, sulfonium salts which are synthesized by activation of dialkylsulfoxides serve as oxidizing agents or precursors of sulfur ylide. In this transformation, sulfonium salts as readily prepared and operationally simple sulfenylation reagents firstly achieved alkylsulfenylation of various activated C(sp3)-H bonds with the formation of tetra-substituted carbon center. Thus, e.g., sulfenylation of Me 2-oxocyclopentanecarboxylate with DMSO in presence of AcCl as activator and NaSbF6 in MeCN afforded I (79%). The experimental process involved the reaction of Methyl 2-cyclopentanonecarboxylate(cas: 10472-24-9).Computed Properties of 10472-24-9

The Article related to sulfenylation dicarbonyl ketophosphonate ketonitrile sulfonium salt, General Organic Chemistry: Synthetic Methods and other aspects.Computed Properties of 10472-24-9

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On March 1, 2021, Zhang, Liang; Nagaraju, Sakkani; Paplal, Banoth; Lin, Yunliang; Liu, Shuhua published an article.Reference of 3-Acetyldihydrofuran-2(3H)-one The title of the article was Sulfonium Salts Enable the Direct Sulfenylation of Activated C(sp3)-H Bonds. And the article contained the following:

Herein, the direct α-sulfenylation of a series of β-dicarbonyl, β-ketophosphonate, and β-ketonitrile compounds, mediated by sulfonium salts has been described. Traditionally, sulfonium salts which are synthesized by activation of dialkylsulfoxides serve as oxidizing agents or precursors of sulfur ylide. In this transformation, sulfonium salts as readily prepared and operationally simple sulfenylation reagents firstly achieved alkylsulfenylation of various activated C(sp3)-H bonds with the formation of tetra-substituted carbon center. Thus, e.g., sulfenylation of Me 2-oxocyclopentanecarboxylate with DMSO in presence of AcCl as activator and NaSbF6 in MeCN afforded I (79%). The experimental process involved the reaction of 3-Acetyldihydrofuran-2(3H)-one(cas: 517-23-7).Reference of 3-Acetyldihydrofuran-2(3H)-one

The Article related to sulfenylation dicarbonyl ketophosphonate ketonitrile sulfonium salt, General Organic Chemistry: Synthetic Methods and other aspects.Reference of 3-Acetyldihydrofuran-2(3H)-one

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Chen, Wei-Hai; Yu, Xu; Liao, Wei-Ching; Sohn, Yang Sung; Cecconello, Alessandro; Kozell, Anna; Nechushtai, Rachel; Willner, Itamar published an article in 2017, the title of the article was ATP-Responsive Aptamer-Based Metal-Organic Framework Nanoparticles (NMOFs) for the Controlled Release of Loads and Drugs.Application of 1312703-30-2 And the article contains the following content:

Nanoparticles consisting of metal-organic frameworks (NMOFs) modified with nucleic acid binding strands are synthesized. The NMOFs are loaded with a fluorescent agent or with the anticancer drug doxorubicin, and the loaded NMOFs are capped by hybridization with a complementary nucleic acid that includes the ATP-aptamer or the ATP-AS1411 hybrid aptamer in caged configurations. The NMOFs are unlocked in the presence of ATP via the formation of ATP-aptamer complexes, resulting in the release of the loads. As ATP is overexpressed in cancer cells, and since the AS1411 aptamer recognizes the nucleolin receptor sites on the cancer cell membrane, the doxorubicin-loaded NMOFs provide functional carriers for targeting and treatment of cancer cells. Preliminary cell experiments reveal impressive selective permeation of the NMOFs into MDA-MB-231 breast cancer cells as compared to MCF-10A normal epithelial breast cells. High cytotoxic efficacy and targeted drug release are observed with the ATP-AS1411-functionalized doxorubicin-loaded NMOFs. The experimental process involved the reaction of Dimethyl 2′-amino-[1,1′:4′,1”-terphenyl]-4,4”-dicarboxylate(cas: 1312703-30-2).Application of 1312703-30-2

The Article related to atp controlled release nanoparticle aptamer metal organic framework, Pharmaceuticals: Formulation and Compounding and other aspects.Application of 1312703-30-2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Lopez Rivas, Paula; Muller, Christoph; Breunig, Christian; Hechler, Torsten; Pahl, Andreas; Arosio, Daniela; Belvisi, Laura; Pignataro, Luca; Dal Corso, Alberto; Gennari, Cesare published an article in 2019, the title of the article was β-Glucuronidase triggers extracellular MMAE release from an integrin-targeted conjugate.Name: Bis(2,5-dioxopyrrolidin-1-yl) glutarate And the article contains the following content:

A non-internalizing αvβ3 integrin ligand was conjugated to the anticancer drug MMAE through a β-glucuronidase-responsive linker. In the presence of β-glucuronidase, only the conjugate bearing a PEG4 spacer inhibited the proliferation of integrin-expressing cancer cells at low nanomolar concentrations, indicating important structural requirements for the efficacy of these therapeutics. The experimental process involved the reaction of Bis(2,5-dioxopyrrolidin-1-yl) glutarate(cas: 79642-50-5).Name: Bis(2,5-dioxopyrrolidin-1-yl) glutarate

The Article related to glucuronidase extracellular mmae release integrin targeted conjugate, Pharmaceuticals: Formulation and Compounding and other aspects.Name: Bis(2,5-dioxopyrrolidin-1-yl) glutarate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On April 20, 2000, Bjore, Annika; Granath, Anna-Karin published a patent.SDS of cas: 227940-70-7 The title of the patent was A dried or frozen pharmaceutical preparation containing a class III antiarrhythmic compound. And the patent contained the following:

The present invention relates to dried preparations containing a class III antiarrythmic compound in the form of crystalline or amorphous salt or any combination thereof, where the counterion is selected from pharmaceutically acceptable water-soluble organic or inorganic acids. The present invention also relates to frozen preparations containing a class III antiarrhythmic compound in the form of salt solution, where the counterion is selected from pharmaceutically acceptable water-soluble organic or inorganic acids. Preferred preparations contain a salt of the compound 3,7-diazabicyclo[3.3.1]-nonane-3-carboxylic acid 7-[(2S)-3-(4-cyanophenoxy)-2-hydroxypropyl]-1,1-dimethylethyl ester (Compound A). Further aspects of the present invention include salts of Compound A per se, processes for preparing the preparation, as well as use of the preparations for prophylaxis and/or treatment of cardiac arrhythmia. The experimental process involved the reaction of tert-Butyl 7-benzyl-9-oxo-3,7-diazabicyclo[3.3.1]nonane-3-carboxylate(cas: 227940-70-7).SDS of cas: 227940-70-7

The Article related to antiarrhythmic diazabicyclononanecarboxylate freeze dried pharmaceutical, Pharmaceuticals: Formulation and Compounding and other aspects.SDS of cas: 227940-70-7

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On May 15, 2020, Pisella, Guillaume; Gagnebin, Alec; Waser, Jerome published an article.Recommanded Product: 3-Acetyldihydrofuran-2(3H)-one The title of the article was Copper-Catalyzed Oxyvinylation of Diazo Compounds. And the article contained the following:

A copper(I)-catalyzed vinylation of diazo compounds with vinylbenziodoxolone reagents (VBX) as partners was reported. The transformation tolerated diverse functionalities on both reagents delivering polyfunctionalized vinylated products. The strategy was successfully extended to a three-component/intermol. version with alcs. The obtained products contain synthetically versatile functional groups, such as an aryl iodide, an ester, and an allylic leaving group, enabling further modification. The experimental process involved the reaction of 3-Acetyldihydrofuran-2(3H)-one(cas: 517-23-7).Recommanded Product: 3-Acetyldihydrofuran-2(3H)-one

The Article related to diazo compound vinylbenziodoxolone reagent copper catalyst oxyvinylation, General Organic Chemistry: Synthetic Methods and other aspects.Recommanded Product: 3-Acetyldihydrofuran-2(3H)-one

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On May 14, 2015, Lin, Wenbin; He, Chunbai; Liu, Demin published a patent.HPLC of Formula: 1312703-30-2 The title of the patent was Nanoscale carriers for the delivery or co-delivery of chemotherapeutics, nucleic acids and photosensitizers. And the patent contained the following:

Nanoscale coordination polymer nanoparticles for the co-delivery of multiple therapeutic agents are described. The multiple therapeutic agents can include a combination of different chemotherapeutic agents, a combination of one or more chemotherapeutic agents and one or more nucleic acids, such as small interfering RNA (siRNA) or microRNA, a combination of one or more chemotherapeutic agents and a photosensitizer (i.e., for use in photodynamic therapy), or a plurality of different siRNAs. Pharmaceutical formulations including the nanoparticles, methods of using the nanoparticles to treat cancer, and methods of making the nanoparticles are also described. An example describes nanoscale coordination polymers made with cisplatin or oxaliplatin prodrugs and having RNAs adsorbed on the particle surface via electrostatic interactions. The experimental process involved the reaction of Dimethyl 2′-amino-[1,1′:4′,1”-terphenyl]-4,4”-dicarboxylate(cas: 1312703-30-2).HPLC of Formula: 1312703-30-2

The Article related to nanoscale carrier delivery chemotherapeutic nucleic acid photosensitizer, Pharmaceuticals: Formulation and Compounding and other aspects.HPLC of Formula: 1312703-30-2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Li, Yan-An; Zhao, Xiao-Dong; Yin, Hai-Peng; Chen, Gong-Jun; Yang, Song; Dong, Yu-Bin published an article in 2016, the title of the article was A drug-loaded nanoscale metal-organic framework with a tumor targeting agent for highly effective hepatoma therapy.Computed Properties of 1312703-30-2 And the article contains the following content:

Drug delivery systems with targeting agents for precise drug release in cancer therapy are very significant and important. Herein, we report the rational design and synthesis of a DOX (doxorubicin) loaded UiO-68-type of nanoscale metal-organic framework (NMOF) with a tumor targeting agent (folic acid, FA), DOX@UiO-68-FA (3), as a multifunctional drug delivery system for hepatoma (Hep G2) therapy via tail-vein injection. Compared to free DOX, FA-unloaded DOX@Mi-UiO-68 (2), 3 exhibits a much higher antitumor efficacy, which was confirmed by cell imaging, standard 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) proliferation and in vivo experiments The experimental process involved the reaction of Dimethyl 2′-amino-[1,1′:4′,1”-terphenyl]-4,4”-dicarboxylate(cas: 1312703-30-2).Computed Properties of 1312703-30-2

The Article related to metal organic framework drug delivery system preparation hepatoma therapy, Pharmaceuticals: Formulation and Compounding and other aspects.Computed Properties of 1312703-30-2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Mommer, Stefan; Lamberts, Kevin; Keul, Helmut; Moeller, Martin published an article in 2013, the title of the article was A novel multifunctional coupler: the concept of coupling and proof of principle [Erratum to document cited in CA158:534245].Formula: C4H8ClNOS And the article contains the following content:

An acknowledgments section was omitted from the published manuscript; the omitted section is given. The experimental process involved the reaction of 3-Aminodihydrothiophen-2(3H)-one hydrochloride(cas: 6038-19-3).Formula: C4H8ClNOS

The Article related to erratum multifunctional coupler ethylene carbonate thiolactone preparation, General Organic Chemistry: Synthetic Methods and other aspects.Formula: C4H8ClNOS

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics