Month: November 2022

On April 9, 2014, He, Chunbai; Lu, Kuangda; Liu, Demin; Lin, Wenbin published an article.Related Products of 1312703-30-2 The title of the article was Nanoscale Metal-Organic Frameworks for the Co-Delivery of Cisplatin and Pooled siRNAs to Enhance Therapeutic Efficacy in Drug-Resistant Ovarian Cancer Cells. And the article contained the following:

Ovarian cancer is the leading cause of death among women with gynecol. malignancies. Acquired resistance to chemotherapy is a major limitation for ovarian cancer treatment. We report here the first use of nanoscale metal-organic frameworks (NMOFs) for the co-delivery of cisplatin and pooled small interfering RNAs (siRNAs) to enhance therapeutic efficacy by silencing multiple drug resistance (MDR) genes and resensitizing resistant ovarian cancer cells to cisplatin treatment. UiO NMOFs with hexagonal-plate morphologies were loaded with a cisplatin prodrug and MDR gene-silencing siRNAs (Bcl-2, P-glycoprotein [P-gp], and survivin) via encapsulation and surface coordination, resp. NMOFs protect siRNAs from nuclease degradation, enhance siRNA cellular uptake, and promote siRNA escape from endosomes to silence MDR genes in cisplatin-resistant ovarian cancer cells. Co-delivery of cisplatin and siRNAs with NMOFs led to an order of magnitude enhancement in chemotherapeutic efficacy in vitro, as indicated by cell viability assay, DNA laddering, and Annexin V staining. This work shows that NMOFs hold great promise in the co-delivery of multiple therapeutics for effective treatment of drug-resistant cancers. The experimental process involved the reaction of Dimethyl 2′-amino-[1,1′:4′,1”-terphenyl]-4,4”-dicarboxylate(cas: 1312703-30-2).Related Products of 1312703-30-2

The Article related to nanoscale metal organic framework cisplatin sirna ovarian cancer antitumor, Pharmaceuticals: Formulation and Compounding and other aspects.Related Products of 1312703-30-2

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

Mukerjee, Anindita; Ranjan, Amalendu P.; Vishwanatha, Jamboor K. published an article in 2014, the title of the article was Non-covalent surface integration: optimising a novel technique for preparing targeted polymeric nanoparticles for cancer therapeutics.SDS of cas: 79642-50-5 And the article contains the following content:

Targeting anticancer drugs to their specific mol. targets is a major challenge in cancer therapy. However, advances in biomedical and protein engineering have led to novel nanoparticle targeting approaches. In this study, we used a novel non-covalent insertion of a homo-bifunctional spacer for targeted delivery of drugs to various cancer cells. Functionalised blank nanoparticles for antibody (targeting agent) conjugation were prepared using different crosslinking spacers (bis[sulfosuccinimidyl] suberate (BS3), Disuccinimidyl glutarate (DSG) and sulfo-N-[ε-maleimidocaproyloxy] sulfosuccinimide ester (s-EMCS)). The concentration of the spacers and the concentration of antibody used for conjugation were optimized using flow cytometry. The optimized and functionalised nanoparticles thus obtained were characterised for percent yield, mean particle size, surface morphol. and percent antibody attachment. Our studies showed the formation of smooth and spherical functionalised poly(D,L-lactide-co-glycolide) (PLGA) nanoparticles which could be successfully conjugated to an antibody, Anti-Annexin A2, for targeting to breast cancer cells. The functionalisation of PLGA nanoparticles for antibody attachment was effectively optimized leading to high percent attachments of 92.8% achieved with BS3. Antibody conjugated PLGA nanoparticles were then evaluated for their targeting potential. Robust intra-cellular uptake of the targeted nanoparticles was observed in breast cancer cell line and in mouse xenograft tumor studies. Our results thus validate that such a novel technique of surface integration may be used for preparing targeted polymeric nanoparticles for cancer therapeutics. The experimental process involved the reaction of Bis(2,5-dioxopyrrolidin-1-yl) glutarate(cas: 79642-50-5).SDS of cas: 79642-50-5

The Article related to non covalent surface integration polymeric nanoparticle cancer therapeutics, Pharmaceuticals: Formulation and Compounding and other aspects.SDS of cas: 79642-50-5

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

Bityukov, Oleg V.; Vil, Vera A.; Merkulova, Valentina M.; Nikishin, Gennady I.; Terent’ev, Alexander O. published an article in 2018, the title of the article was Silica gel mediated oxidative C-O coupling of β-dicarbonyl compounds with malonyl peroxides in solvent-free conditions.Product Details of 517-23-7 And the article contains the following content:

For the first time silica gel was observed to activate peroxides in oxidative coupling reactions. Herein, silica gel mediated oxidative C-O coupling of β-dicarbonyl compounds with cyclic diacyl peroxides affording α-acyloxy derivatives with 100% atom efficiency was reported. The highest yields of coupling products were achieved in solvent free conditions. C-O coupling products were prepared in yields up to 86%. The experimental process involved the reaction of 3-Acetyldihydrofuran-2(3H)-one(cas: 517-23-7).Product Details of 517-23-7

The Article related to dicarbonyl compound malonyl peroxide oxidative coupling silica gel catalyst, General Organic Chemistry: Synthetic Methods and other aspects.Product Details of 517-23-7

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

On March 23, 2022, there was a patent about aldoses.SDS of cas: 29704-38-9 The title of the patent was Molecules with solubility tag and related methods. And the patent contained the following:

The present disclosure relates to mols. comprising a targeting moiety, at least one payload wherein said at least one payload is a therapeutic agent or a detectable lable, a linker/linkers covalently linking said payload/payloads and said targeting moiety, and at least one solubility tag, wherein said solubility tag comprises at least 3 and up to 12 monosaccharide units. The experimental process involved the reaction of tert-Butyl 2-(4-nitrophenyl)acetate(cas: 29704-38-9).SDS of cas: 29704-38-9

The Article related to pharmaceutical conjugate solubility tag chitooligosaccharide monosaccharide, Pharmaceuticals: Formulation and Compounding and other aspects.SDS of cas: 29704-38-9

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

On March 24, 2022, Deutsch, Carl; Kelly, Sven; Crassier, Helene; Korpus, Christoph; Von Hagen, Joerg; Richter-Sander, Ulrike published a patent.Computed Properties of 29704-38-9 The title of the patent was Molecules with solubility tag and related methods. And the patent contained the following:

The present disclosure relates to mols. with a solubility tag, wherein the solubility tag comprises a chito-oligosaccharide, and to methods for increasing the solubility of a mol. Moreover, the present disclosure relates to antibody-drug conjugates with solubility tag, methods and compounds for preparing such antibody-drug conjugates, methods for increasing the solubility of antibody-drug conjugates, antibody-drug conjugates prepared by such methods, as well as the use of such antibody-drug conjugates in medical treatment. The experimental process involved the reaction of tert-Butyl 2-(4-nitrophenyl)acetate(cas: 29704-38-9).Computed Properties of 29704-38-9

The Article related to pharmaceutical conjugate solubility tag chitooligosaccharide monosaccharide, Pharmaceuticals: Formulation and Compounding and other aspects.Computed Properties of 29704-38-9

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

On April 5, 2019, Gavel, Marine; Courant, Thibaut; Joosten, Antoine Yvan Philippe; Lecourt, Thomas published an article.Related Products of 2873-29-2 The title of the article was Regio- and Chemoselective Deprotection of Primary Acetates by Zirconium Hydrides. And the article contained the following:

A combination of DIBAL-H and Cp2ZrCl2 is shown to promote the regioselective cleavage of primary acetates on a broad scope of substrates, ranging from carbohydrates to terpene derivatives, with a high tolerance toward protecting groups and numerous functionalities found in natural products and bioactive compounds Apart from providing highly valuable building blocks in only two steps from biosourced raw materials, this selective de-O-acetylation should also be strongly helpful to solve selectivity issues in organic synthesis. The experimental process involved the reaction of (2R,3S,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate(cas: 2873-29-2).Related Products of 2873-29-2

The Article related to alc preparation, acetate deprotection zirconium hydride dibalh deacetylation, General Organic Chemistry: Synthetic Methods and other aspects.Related Products of 2873-29-2

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

On November 19, 2021, Gallo, Rafael D. C.; Duarte, Marcelo; da Silva, Amanda F.; Okada, Celso Y. Jr.; Deflon, Victor M.; Jurberg, Igor D. published an article.Product Details of 872046-08-7 The title of the article was A Selective C-C Bond Cleavage Strategy Promoted by Visible Light. And the article contained the following:

A new visible-light-promoted reaction between aryldiazoacetates ArC(=N2)COOR1 (Ar = Ph, 4-chlorophenyl, 3,5-dimethoxypheny, etc.; R1 = Me, Bn, i-Pr, allyl) and 1,3-diketones R2C(O)CH2C(O)R3 (R2 = Me, 4-chlorophenyl, cyclopropyl, etc.; R3 = Me, Ph, 2-methoxyphenyl, etc.) allows good yields and selectivities for C-C bond insertions, leading to the corresponding 1,4-dicarbonyl compounds R2C(O)C(COOR1)(Ar)CH2C(O)R3 . This transformation is straightforward and highly practical. It tolerates air and moisture and does not require the use of any metals. Mechanistic investigations support the involvement of a key cyclopropanol intermediate derived from an intramol. rearrangement. The experimental process involved the reaction of Methyl 2-(2,6-difluorophenyl)acetate(cas: 872046-08-7).Product Details of 872046-08-7

The Article related to dicarbonyl compound preparation, aryldiazoacetate diketone insertion reaction, General Organic Chemistry: Synthetic Methods and other aspects.Product Details of 872046-08-7

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

Zhou, Bingqing; Tian, Di; An, Jinglin; Zhou, Yalan; Yan, Rui; Song, Hao; Liu, Xiao-Yu; Qin, Yong published an article in 2022, the title of the article was Co-Catalyzed C(sp3)-C(sp2) bond cleavage via hydrogen atom transfer.SDS of cas: 10472-24-9 And the article contains the following content:

The discovery of a new Co-catalyzed hydrogen atom transfer (HAT) C(sp3)-C(sp2) bond cleavage method to access ketones from alkenes was reported. This unprecedented transformation features mild reaction conditions and good functional group compatibility, and it proceeded through a key alkoxy radical formation and subsequent β-fragmentation approach. The experimental process involved the reaction of Methyl 2-cyclopentanonecarboxylate(cas: 10472-24-9).SDS of cas: 10472-24-9

The Article related to ketone preparation, alkene bond cleavage hydrogen atom transfer cobalt catalyst, General Organic Chemistry: Synthetic Methods and other aspects.SDS of cas: 10472-24-9

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

On September 30, 2022, Borredon, Claudia; Miccio, Luis A.; Phan, Anh D.; Schwartz, Gustavo A. published an article.Product Details of 118-55-8 The title of the article was Estimating glass transition temperature and related dynamics of molecular glass formers combining artificial neural networks and disordered systems theory. And the article contained the following:

Glass transition temperature and related dynamics play an essential role in amorphous materials research since many of their properties and functionalities depend on mol. mobility. However, the temperature dependence of the structural relaxation time for a given glass former is only exptl. accessible after synthesizing it, implying a time-consuming and costly process. In this work, we propose combining artificial neural networks and disordered systems theory to estimate the glass transition temperature and the temperature dependence of the main relaxation time based on the knowledge of the mol.’s chem. structure. This approach provides a way to assess the dynamics of mol. glass formers, with reasonable accuracy, even before synthesizing them. We expect this methodol. to boost industrial development, save time and resources, and accelerate the scientific understanding of structure-properties relationships. The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).Product Details of 118-55-8

The Article related to glass former transition temperature artificial neural network disordered theory, General Physical Chemistry: General Theories and other aspects.Product Details of 118-55-8

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

On May 1, 2015, Zhang, Xiaomin; Wang, Jian; Wan, Zehong published an article.Reference of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate The title of the article was New Reagent for Highly Efficient Synthesis of Trifluoromethyl-Substituted Arenes and Heteroarenes. And the article contained the following:

A new reagent trimethylsilyl chlorodifluoroacetate (TCDA) is reported for the introduction of a -CF3 group to arenes and heteroarenes. Compared with current known reagents, TCDA shows very broad scope with respect to electron-deficient, -neutral, and -rich aryl/heteroaryl iodides as well as excellent functional group tolerance, including ester, amide, aldehyde, hydroxyl, and carboxylic acid. The experimental process involved the reaction of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate(cas: 141940-37-6).Reference of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate

The Article related to trifluoromethylation aryl heteroaryl iodide trimethylsilyl chlorodifluoroacetate, General Organic Chemistry: Synthetic Methods and other aspects.Reference of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate

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