Month: October 2022

Pudnika, Linda; Domraceva, Ilona; Werner, Thomas; Zalubovskis, Raivis; Grandane, Aiga published the artcile< Base-Free Catalytic Wittig-/Cross-Coupling Reaction Sequence as Short Synthetic Strategy for the Preparation of Highly Functionalized Arylbenzoxepinones>, Electric Literature of 112-63-0, the main research area is bromo formylphenyl methylfumarate preparation phosphine catalyst Wittig reaction; bromobenzoxepinone carboxylate preparation phenylboronic acid Suzuki coupling reaction; tributyl phenylstannane bromobenzoxepinone carboxylate Stille coupling reaction; phenylbenzoxepinone carboxylate preparation antitumor SAR.

A short and efficient synthetic route towards benzoxepine containing scaffold, which enables late stage modification was developed. Namely, base-free catalytic Wittig reactions enabled the synthesis of bromobenzoxepinones from readily available starting materials. Subsequent, Suzuki-Miyaura and Stille reactions proved to be suitable methods to access a variety of benzoxepinone diaryl derivatives by late stage modification in only three steps. This three-step reaction sequence was suitable for high throughput applications and gives facile access to highly complex mol. structures, which are suitable for further functionalization. The antiproliferative properties of selected arylbenzoxepinones were tested in-vitro on monolayer tumor cell line A549. Notably, in this initial screening, these compounds were found to be active in the micromolar range.

Synthesis published new progress about Antitumor agents. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Electric Literature of 112-63-0.

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

Nishiguchi, Gisele A.; Rico, Alice; Tanner, Huw; Aversa, Robert J.; Taft, Benjamin R.; Subramanian, Sharadha; Setti, Lina; Burger, Matthew T.; Wan, Lifeng; Tamez, Victoriano; Smith, Aaron; Lou, Yan; Barsanti, Paul A.; Appleton, Brent A.; Mamo, Mulugeta; Tandeske, Laura; Dix, Ina; Tellew, John E.; Huang, Shenlin; Mathews Griner, Lesley A.; Cooke, Vesselina G.; Van Abbema, Anne; Merritt, Hanne; Ma, Sylvia; Gampa, Kalyani; Feng, Fei; Yuan, Jing; Wang, Yingyun; Haling, Jacob R.; Vaziri, Sepideh; Hekmat-Nejad, Mohammad; Jansen, Johanna M.; Polyakov, Valery; Zang, Richard; Sethuraman, Vijay; Amiri, Payman; Singh, Mallika; Lees, Emma; Shao, Wenlin; Stuart, Darrin D.; Dillon, Michael P.; Ramurthy, Savithri published the artcile< Design and Discovery of N-(2-Methyl-5'-morpholino-6'-((tetrahydro-2H-pyran-4-yl)oxy)-[3,3'-bipyridin]-5-yl)-3-(trifluoromethyl)benzamide (RAF709): A Potent, Selective, and Efficacious RAF Inhibitor Targeting RAS Mutant Cancers>, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is preparation RAF709 RAF inhibitor RAS mutant cancer.

RAS oncogenes have been implicated in >30% of human cancers, all representing high unmet medical need. The exquisite dependency on CRAF kinase in KRAS mutant tumors has been established in genetically engineered mouse models and human tumor cells. To date, many small mol. approaches are under investigation to target CRAF, yet kinase-selective and cellular potent inhibitors remain challenging to identify. Herein, we describe 14 (RAF709) [Aversa, Biaryl amide compounds as kinase inhibitors and their preparation WO 2014151616, 2014], a selective B/C RAF inhibitor, which was developed through a hypothesis-driven approach focusing on drug-like properties. A key challenge encountered in the medicinal chem. campaign was maintaining a balance between good solubility and potent cellular activity (suppression of pMEK and proliferation) in KRAS mutant tumor cell lines. We investigated the small mol. crystal structure of lead mol. 7 and hypothesized that disruption of the crystal packing would improve solubility, which led to a change from N-methylpyridone to a tetrahydropyranyl oxy-pyridine derivative 14 proved to be soluble, kinase selective, and efficacious in a KRAS mutant xenograft model.

Journal of Medicinal Chemistry published new progress about Animal gene, raf Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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

Zhang, Ming-yue; Wang, Xue-ying; Zhang, Xiao-hui; Hou, Rong published the artcile< Urine metabolomics reveals the effects of confined environment on mating choice in adult male giant pandas>, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is adult giant panda urine metabolomics mating environment; Adult captive male giant pandas; Mate choice; Stress; Urine Metabolomics.

Mate choice was an important factor affecting the success rate of natural mating of captive giant pandas. The influencing factors and mechanisms of the mate preference of captive giant pandas were still unclear, and it was speculated that they might be related to the psychol. stress caused by the long-term confined environment restricting their free choice of physiol. needs. In order to test this hypothesis, this work explored the urinary metabolites of 6 adult captive male giant pandas during breeding period. Differences in metabolite levels in giant panda urine samples were analyzed via Ultra High Performance LC-MS (UHPLC/-MS) comparing preservation to loss of natural reproductive capacity and success to failure of mating choice, trying to understand the psychol. feelings of captive giant pandas in the process of mate choice from the perspective of all metabolites and related biochem. pathways, and fully revealed the mechanism of decline of their natural reproductive ability. The anal. results indicated that the loss of natural mating behavior of adult captive male giant pandas might be related to the disorder of tryptophan metabolism pathway and inhibition of arginine synthesis; the reason for the failure of mating choice caused by decreased libido might be related to the temporary decrease of androgen contents caused by the down-regulated of TCA cycle function and galactose metabolic pathway. These findings not only provide that adult male giant pandas in captivity do have psychol. frustration caused by the inability to freely choose their favorite mate or failure of mating preference, but also showed that the changes in stress-related metabolic pathways caused by psychol. frustration were an important reason for the decline of natural mating behavior of adult captive male giant pandas.

Physiology & Behavior published new progress about Adult, mammalian. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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

Chang, Chun-Wei; Wu, Chia-Hui; Lin, Mei-Huei; Liao, Pin-Hsuan; Chang, Chun-Chi; Chuang, Hsiao-Han; Lin, Su-Ching; Lam, Sarah; Verma, Ved Prakash; Hsu, Chao-Ping; Wang, Cheng-Chung published the artcile< Establishment of Guidelines for the Control of Glycosylation Reactions and Intermediates by Quantitative Assessment of Reactivity>, Reference of 4098-06-0, the main research area is predicted stereocontrolled glycosylation relative reactivity thioglycoside; carbohydrates; diastereoselectivity; glycosylation.

Stereocontrolled chem. glycosylation remains a major challenge despite vast efforts reported over many decades and so far still mainly relies on trial and error. Now it is shown that the relative reactivity value (RRV) of thioglycosides is an indicator for revealing stereoselectivities according to four types of acceptors. Mechanistic studies show that the reaction is dominated by two distinct intermediates: glycosyl triflates and glycosyl halides from N-halosuccinimide (NXS)/TfOH. The formation of glycosyl halide is highly correlated with the production of α-glycoside. These findings enable glycosylation reactions to be foreseen by using RRVs as an α/β-selectivity indicator and guidelines and rules to be developed for stereocontrolled glycosylation.

Angewandte Chemie, International Edition published new progress about Diastereoselective synthesis. 4098-06-0 belongs to class esters-buliding-blocks, and the molecular formula is C12H16O7, Reference of 4098-06-0.

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

Zificsak, Craig A.; Gingrich, Diane E.; Breslin, Henry J.; Dunn, Derek D.; Milkiewicz, Karen L.; Theroff, Jay P.; Thieu, Tho V.; Underiner, Ted L.; Weinberg, Linda R.; Aimone, Lisa D.; Albom, Mark S.; Mason, Jennifer L.; Saville, Lisa; Husten, Jean; Angeles, Thelma S.; Finn, James P.; Jan, Mahfuza; O’Kane, Teresa M.; Dobrzanski, Pawel; Dorsey, Bruce D. published the artcile< Optimization of a novel kinase inhibitor scaffold for the dual inhibition of JAK2 and FAK kinases>, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is anilino pyrrolo triazine dual inhibitor JAK2 FAK kinase cancer.

The elaboration of a novel scaffold for the inhibition of JAK2 and FAK kinases was targeted in order to provide a dual inhibitor that could target divergent pathways for tumor cell progression.

Bioorganic & Medicinal Chemistry Letters published new progress about Activin receptor ALK4 Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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

Randolph, John T.; Voight, Eric A.; Greszler, Stephen N.; Uno, Brice E.; Newton, James N.; Gleason, Kenneth M.; Stolarik, DeAnne; Van Handel, Cecilia; Bow, Daniel A. J.; DeGoey, David A. published the artcile< Prodrug Strategies to Improve the Solubility of the HCV NS5A Inhibitor Pibrentasvir (ABT-530)>, Quality Control of 623-50-7 , the main research area is prodrug pibrentasvir solubility.

A research program to discover solubilizing prodrugs of the HCV NS5A inhibitor pibrentasvir (PIB) identified phosphomethyl analog 2 and trimethyl-lock (TML) prodrug 9. The prodrug moiety is attached to a benzimidazole nitrogen atom via an oxymethyl linkage to allow for rapid and complete release of the drug for absorption following phosphate removal by intestinal alk. phosphatase. These prodrugs have good hydrolytic stability properties and improved solubility compared to PIB, both in aqueous buffer (pH 7) and FESSIF (pH 5). TML prodrug 9 provided superior in vivo performance, delivering high plasma concentrations of PIB in PK studies conducted in mice, dogs, and monkeys. The improved dissolution properties of these phosphate prodrugs provide them the potential to simplify drug dosage forms for PIB-containing HCV therapy.

Journal of Medicinal Chemistry published new progress about Antiviral agents. 623-50-7 belongs to class esters-buliding-blocks, and the molecular formula is C4H8O3, Quality Control of 623-50-7 .

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

Hamashima, Toshihiko; Mori, Yoshiaki; Sawada, Kazunori; Kasahara, Yuko; Murayama, Daisuke; Kamei, Yuto; Okuno, Hiroaki; Yokoyama, Yuusaku; Suzuki, Hideharu published the artcile< A practical regioselective synthesis of alkylthio- or arylthioindoles without the use of smelly compounds such as thiols>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is alkylthio arylthio indole thioether preparation; indole alkaloid indole thioether Laurencia brongniartii antibacterial agent.

A convenient method for the synthesis of 3-(methylthio)indole derivatives was established which does not use smelly compounds such as thiol derivatives The method, which introduces an alkylthio-group or arylthio-group into the C3-position of an indole skeleton, was extended to the direct introduction of a methylthio or bromo group at the C2-position using 3-(methylthio)indole derivatives No dimerization occurred and the reaction mechanism was confirmed. The products have the partial structure of potent anti-methicillin-resistant Staphylococcus aureus (anti-MRSA) bromomethylthioindole derivatives (MC 5-8) isolated from marine algae. Furthermore, this reaction could be applied to the synthesis of 3,3-bis(indole) thioether which is a core structure of Echinosulfone A. The synthesis of the target compounds as achieved by a reaction of indole derivatives with (alkyl)[(2,2,2-trifluoroacetyl)oxy]sulfonium 2,2,2-trifluoroacetate (1:1) or (aryl)[(2,2,2-trifluoroacetyl)oxy]sulfonium 2,2,2-trifluoroacetate (1:1) and formation of sulfonium compound intermediates. The title compounds thus formed included 3-(methylthio)-1H-indole, 3-(methylthio)-1H-indole-5-carbonitrile, 2,3-bis(methylthio)-1H-indole, 3-(methylthio)-1H-indole-5-carboxylic acid Et ester, 3-(methylthio)-5-nitro-1H-indole (I).

Chemical & Pharmaceutical Bulletin published new progress about Green chemistry. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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

Nunez-Mojica, Guillermo; Rivas-Galindo, Veronica M.; Garza-Gonzalez, Elvira; Miranda, Luis D.; Romo-Perez, Adriana; Pagniez, Fabrice; Picot, Carine; Le Pape, Patrice; Bazin, Marc-Antoine; Marchand, Pascal; Camacho-Corona, Maria del Rayo published the artcile< Antimicrobial and antileishmanial activities of extracts and some constituents from the leaves of Solanum chrysotrichum Schldl>, Related Products of 112-63-0, the main research area is Solanum leaves antimicrobial antileishmanial.

Abstract: Three organic extracts were prepared from the leaves of Solanum chrysotrichum Schldl. From the methanol extract were isolated two new steroidal saponins (1, 2), and three known compounds (3, 4, and 5). The new saponins were elucidated as 6-α-O-α-L-rhamnopyranosyl-(1 → 3)-β-D-quinovopyranosyl-(25S)-5α-spirostan-3β-ol (1) and 6-α-O-α-L-rhamnopyranosyl-(1 → 3)-β-D-quinovopyranosyl-(23R,25S)-5α-spirostan-3β,23β-ol (2). The structural elucidation of compounds was performed by anal. of 1D and 2D NMR spectral data and HRMS. Antibacterial activity was displayed by the hexane and CH2Cl2 extracts against carbapenem-resistant Pseudomonas aeruginosa (MIC = 250 μg/mL) and carbapenem-resistant Acinetobacter baumannii (MIC = 125 μg/mL). The known saponin (3) was the only compound active against bacteria, showing activity against all the gram-pos. bacteria (MIC = 12.5 μg/mL). Antitubercular activity was observed only for the hexane extract (MIC = 250 μg/mL). The antifungal and antileishmanial activities were determined for the steroidal saponins, but they were devoid of antifungal activity at the concentrations tested. Antileishmanial activity was shown only by the saponin (1) (IC50: 21.64 ± 1.21 μg/mL). [graphic not available: see fulltext]

Medicinal Chemistry Research published new progress about Acinetobacter baumannii (carbapenem-resistant). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Related Products of 112-63-0.

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

van Putten, Erik H. P.; Kleijn, Anne; van Beusechem, Victor W.; Noske, David; Lamers, Cor H. J.; de Goede, Anna L.; Idema, Sander; Hoefnagel, Daphna; Kloezeman, Jenneke J.; Fueyo, Juan; Lang, Frederick F.; Teunissen, Charlotte E.; Vernhout, Rene M.; Bakker, Cathy; Gerritsen, Winald; Curiel, David T.; Vulto, Arnold; Lamfers, Martine L. M.; Dirven, Clemens M. F. published the artcile< Convection enhanced delivery of the oncolytic adenovirus Delta24-RGD in patients with recurrent GBM: a phase I clinical trial including correlative studies>, Synthetic Route of 112-63-0, the main research area is oncolytic adenovirus human recurrent glioblastoma clin trial.

Testing safety of Delta24-RGD (DNX-2401), an oncolytic adenovirus, locally delivered by convection enhanced delivery (CED) in tumor and surrounding brain of patients with recurrent glioblastoma. Dose-escalation phase I study with 3+3 cohorts, dosing 107 to 1 × 1011 viral particles (vp) in 20 patients. Besides clin. parameters, adverse events, and radiol. findings, blood, cerebrospinal fluid (CSF), brain interstitial fluid, and excreta were sampled over time and analyzed for presence of immune response, viral replication, distribution, and shedding. Of 20 enrolled patients, 19 received the oncolytic adenovirus Delta24-RGD, which was found to be safe and feasible. Four patients demonstrated tumor response on MRI, one with complete regression and still alive after 8 years. Most serious adverse events were attributed to increased intracranial pressure caused by either an inflammatory reaction responding to steroid treatment or viral meningitis being transient and self-limiting. Often viral DNA concentrations in CSF increased over time, peaking after 2 to 4 wk and remaining up to 3 mo. Concomitantly Th1- and Th2-associated cytokine levels and numbers of CD3+ T and natural killer cells increased. Posttreatment tumor specimens revealed increased numbers of macrophages and CD4+ and CD8+ T cells. No evidence of viral shedding in excreta was observed CED of Delta24-RGD not only in the tumor but also in surrounding brain is safe, induces a local inflammatory reaction, and shows promising clin. responses.

Clinical Cancer Research published new progress about Blood. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Synthetic Route of 112-63-0.

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

Wang, Wenchao; Li, Fashe; Wang, Hua published the artcile< Study of light wavelength on the oxidative stability of Jatropha biodiesel>, Quality Control of 112-63-0, the main research area is Jatropha biodiesel oxidative stability light wavelength.

The oxidative stability of Jatropha biodiesel after exposure to different wavelengths of visible light was studied and kinetic anal. of the oxidation process was carried out. The results showed that the induction period of Jatropha biodiesel was 5.12 h and visible light at different wavelengths affected the oxidation of biodiesel differently. Effect of oxidation was the strongest in the purple, where the induction period was reduced to 2.65 h. The red had the weakest effect on biodiesel oxidation, and the induction period was reduced to 4.61 h. Acid value detection, component anal. and UV characterization of biodiesel oxidized by visible light at different wavelengths. The results showed that with the decrease of light wavelength, the acid value of the biodiesel increased from 0.2577 mg KOH/g to 0.3438 mg KOH/g and the content of Me linoleate containing two carbon-carbon double bonds decreases. UV characterization results showed that the absorption peak absorbance of conjugated double bond of Jatropha biodiesel oxidized by purple light was 5.282, while the absorption peak absorbance of conjugated double bond of Jatropha biodiesel oxidized by red light was only 2.877, and purple light was helpful to stimulate the generation of conjugate double bond. The kinetic anal. results showed that the different wavelengths had different rates of biodiesel degradation Purple light has the fastest oxidation rate. The oxidation rate constant k1 was 0.06011, the reaction order was n = 1, and the min. activation energy of the oxidation reaction process was 19.79 kJ·mol-1.

Fuel published new progress about Activation energy. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Quality Control of 112-63-0.

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