Tag: M.W=250-300

McGrath, Mary E.; Sprengeler, Paul A.; Hirschbein, Bernard; Somoza, John R.; Lehoux, Isabelle; Janc, James W.; Gjerstad, Erik; Graupe, Michael; Estiarte, Angeles; Venkataramani, Chandru; Liu, Yang; Yee, Robb; Ho, Joseph D.; Green, Michael J.; Lee, Chang-Sun; Liu, Liang; Tai, Vincent; Spencer, Jeffrey; Sperandio, David; Katz, Bradley A. published the artcile< Structure-Guided Design of Peptide-Based Tryptase Inhibitors>, Computed Properties of 112-63-0, the main research area is tryptase inhibitor peptide structure design preparation activity.

Improved peptide-based inhibitors of human β-tryptase were discovered using information gleaned from tripeptide library screening and structure-guided design methods, including fragment screening. These efforts sought to improve this class of inhibitors by replacing the traditional Lys or Arg P1 element. The optimized compounds display low nanomolar potency against the mast cell target and several hundred-fold selectivity with respect to serine protease off targets. Thus, replacement of Lys/Arg at P1 in a peptide-like scaffold does not need to be accompanied by a loss in target affinity.

Biochemistry published new progress about Peptides Role: PAC (Pharmacological Activity), SPN (Synthetic Preparation), BIOL (Biological Study), PREP (Preparation). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Computed Properties of 112-63-0.

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

Pansare, Sunil V.; Ravi, R. Gnana; Jain, Rajendra P. published the artcile< Asymmetric Allylation and Reduction on an Ephedrine-Derived Template: Stereoselective Synthesis of α-Hydroxy Acids and Derivatives>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is asym allylation reduction ephedrine derived template; hemiacetal asym conversion hydroxy acid; morpholinone asym conversion hydroxy acid; hydroxy acid asym preparation; amide hydroxy asym preparation.

A study of the diastereoselective allylation of hemiacetals I (R = Me, Et, Pr, iso-Pr; R1 = OH), derived from α-keto acids and (1R,2S)-ephedrine, was carried out. The products of allylation (I; same R; R1 = allyl), obtained as single diastereomers, were converted to α-hydroxy acid amides by treatment with Na in liquid ammonia. The amides were hydrogenated and hydrolyzed to the (R)-α-alkyl-α-hydroxy acids (>95% ee). Dehydration of the hemiacetals to enones and subsequent stereoselective hydrogenation generated the morpholinones I (same R; R1 = H) as single diastereomers. These were readily converted to (S)-α-hydroxy acids (92-96% ee).

Journal of Organic Chemistry published new progress about Allylation, stereoselective. 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

Chandrashekar, Hediyala B.; Maji, Arun; Halder, Ganga; Banerjee, Sucheta; Bhattacharyya, Sayan; Maiti, Debabrata published the artcile< Photocatalyzed borylation using water-soluble quantum dots>, Electric Literature of 112-63-0, the main research area is photocatalyzed borylation water soluble quantum dot cadmium selenide MPA; aryl boronate preparation Sandmeyer reaction photocatalyst quantum dot.

The synthesis of arylboronates by Sandmeyer-type reactions in the presence of water still remains a significant challenge. Herein, we report the use of water-soluble MPA-capped quantum dot (QD) photocatalysts for the borylation of diazonium salts in the presence of water. A biphasic system under mild acidic conditions remains critical to prevent decomposition and competitive disulfide bond formation. The present protocol offers a broader scope of substrates and borylating agents. Addnl., this catalytic system offers a significantly high turnover number (TON). The present methodol. can effectively distinguish subtle reactivity differences between boronic acids and boronates. Mechanistic investigation suggests an excited-state electron transfer pathway.

Chemical Communications (Cambridge, United Kingdom) published new progress about Band gap. 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

Li, Yutao; Sharma, Amit; Maciaczyk, Jarek; Schmidt-Wolf, Ingo G. H. published the artcile< Recent Development in NKT-Based Immunotherapy of Glioblastoma: From Bench to Bedside>, Computed Properties of 112-63-0, the main research area is review glioblastoma NKT immunotherapy; blood–brain barrier; blood–brain tumor barrier; cytokine-induced killer cells; glioblastoma; immunotherapy; invariant NKT; overall survival; tumor infiltration lymphocytes.

A review. Glioblastoma multiforme (GBM) is an aggressive and dismal disease with a median overall survival of around 15 mo and a 5-yr survival rate of 7.2%. Owing to genetic mutations, drug resistance, disruption to the blood-brain barrier (BBB)/blood-brain tumor barrier (BBTB), and the complexity of the immunosuppressive environment, the therapeutic approaches to GBM represent still major challenges. Conventional therapies, including surgery, radiotherapy, and standard chemotherapy with temozolomide, have not resulted in satisfactory improvements in the overall survival of GBM patients. Among cancer immunotherapeutic approaches, we propose that adjuvant NKT immunotherapy with invariant NKT (iNKT) and cytokine-induced killer (CIK) cells may improve the clin. scenario of this devastating disease. Considering this, herein, we discuss the current strategies of NKT therapy for GBM based primarily on in vitro/in vivo experiments, clin. trials, and the combinatorial approaches with future therapeutic potential.

International Journal of Molecular Sciences published new progress about Blood-brain barrier. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Computed Properties of 112-63-0.

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

Yang, Yueying; Zheng, Mengzhu; Han, Fei; Shang, Lei; Li, Mingxue; Gu, Xiaoxia; Li, Hua; Chen, Lixia published the artcile< Ziprasidone suppresses pancreatic adenocarcinoma cell proliferation by targeting GOT1 to trigger glutamine metabolism reprogramming>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is human pancreatic ductal adenocarcinoma proliferation glutamine metabolism GOT1 ziprasidone; GOT1 inhibitor; Glutamine metabolism; Metabolomics analysis; Pancreatic cancer; Ziprasidone.

Pancreatic ductal adenocarcinoma (PDAC) is a fatal malignant tumor whose effective treatment has not been found. The redox state and proliferative activity of PDAC cells are maintained by the conversion of aspartic acid in the cytoplasm into oxaloacetate though aspartate aminotransferase 1 (GOT1). Therefore, GOT1 inhibitors as a potential approach for treating PDAC have attracted more attention of researchers. Ziprasidone effectively inhibited GOT1 in a non-competitive manner. The potential cytotoxicity and anti-proliferation effects of ziprasidone against PDAC cells in vitro and in vivo were evaluated. Ziprasidone can induce glutamine metabolism disorder and redox state imbalance of PDAC cells by targeting GOT1, thereby inhibiting proliferation, preventing migration, and inducing apoptosis. Ziprasidone displayed significant in vivo antitumor efficacy in SW1990 cell-derived xenografts. Whats more, knockdown of GOT1 in SW1990 reduced the anti-proliferative effects of ziprasidone. As a novel GOT1 inhibitor, ziprasidone may be a lead compound for the treatment of PDAC. Key messages: Small mol. inhibitors targeting GOT1 may provide a therapeutic target in PDAC. Ziprasidone effectively inhibited GOT1 enzyme in a non-competitive manner. Ziprasidone repressed glutamine metabolism and inhibited the growth of tumor in vivo. Knockdown of GOT1 decreased the anti-proliferative effects of ziprasidone.

Journal of Molecular Medicine (Heidelberg, Germany) published new progress about Antiproliferative agents. 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

Luo, Longjuan; Gao, Xianli; Feng, Yunzi; Zhao, Haifeng; Zhao, Mouming published the artcile< Comparative study on aroma compounds in Chinese-type and Japanese-type soy sauces>, Electric Literature of 112-63-0, the main research area is Chinese Japanese type soy sauce aroma compound.

The volatile aroma compounds in Chinese-type and Japanese-type soy sauces were separated and concentrated by direct solvent extraction, and identified by gas chromatog.-mass spectrometry. The results showed that 94 aroma compounds were identified in Chinese-type soy sauces, and 125 aroma compounds were identified in Japanese-type soy sauces. The main aroma compounds in Chinese-type soy sauces were 35.97% esters, 17.79% alcs., 16.05% acids and 8.67% aldehydes and ketones, whereas 52.98% esters, 24.01% acids, 9.31% alcs. and 6.02% aldehydes and ketones consisted of the most of volatile aroma compounds in Japanese-type soy sauce. The difference of varieties and relative quantities of aroma compounds created the flavor discrepancy of Chinese-type and Japanese-type soy sauces.

Zhongguo Niangzao published new progress about Food analysis. 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

Landagaray, Elodie; Ettaoussi, Mohamed; Rami, Marouan; Boutin, Jean A.; Caignard, Daniel-Henri; Delagrange, Philippe; Melnyk, Patricia; Berthelot, Pascal; Yous, Said published the artcile< New quinolinic derivatives as melatonergic ligands: Synthesis and pharmacological evaluation>, Application In Synthesis of 112-63-0, the main research area is quinolinic derivative preparation pharmacol evaluation SAR melatonergic ligand; Agonist; MT(1); MT(2)-Selectivity; Melatonin; Quinoline derivatives.

New series of melatonergic ligands issued from two methoxy-quinolinic scaffolds (2-MQ and 3-MQ), were designed and synthesized. Herein we report the synthetic scheme and pharmacol. results of the new prepared compounds Investigation of compound I (X = O, R = Me), the strict 2-MQ analog, revealed the promising potential of this series. Therefore, pharmacomodulation of the acetamide function of I (X = O, R = Me) has led to compounds with different pharmacol. profiles and the emergence of an MT2 selectivity. Besides, sulfonamide II showed the most important MT2 selectivity of this series (167 folds) while Me and ethyl-ureas I (X = O, R = NHMe, NHEt) represented the most potent melatonergic ligands of this study.

European Journal of Medicinal Chemistry published new progress about Melatonin receptor 1A Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application In Synthesis of 112-63-0.

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

Lv, Zhiqiang; Li, Tianyu; Hou, Xin; Wang, Canpei; Zhang, Huamin; Yan, Jingwang; Zheng, Qiong; Li, Xianfeng published the artcile< Solvation structure and solid electrolyte interface engineering for excellent Na+ storage performances of hard carbon with the ether-based electrolytes>, Product Details of C19H34O2, the main research area is solvation structure solid electrolyte interface engineering excellent sodium storage.

Compared with the commonly used ester-based electrolytes, more excellent Na+ storage performances can be achieved for hard carbon in the ether-based electrolyte. Whereas, the mysteries underlying such excellent electrochem. performances are still unclear. Herein, the impressive Na+ storage behaviors of hard carbon in the ether-based electrolyte were clarified based on a profound insight of Na+ storage mechanism. It’s revealed that the co-intercalation behavior is responsible for the lower de-solvation energy, which contributes to a facile de-solvation process and the enhanced charge transfer kinetic. Besides, a thin, amorphous and flexible solid-electrolyte interface (SEI) in ether-based electrolyte with a specific structure where the amorphous nanoparticles are coated with organic species was probed. And the resulted SEI is beneficial to achieving much lower activation energy for Na+ diffusion through SEI and a stable interface during cycling due to its excellent ion-conducting ability and mech. flexibility. It’s also demonstrated that ether-based solvent with short chain length plays a pos. impact on the Na+ storages, which also well agrees with the above synergistic effect. The research plays a significant role in elucidating the uniqueness of ether-based electrolytes to hard carbon and promoting its practical application in future sodium-based battery chemistries.

Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about Battery electrolytes. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Product Details of C19H34O2.

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

Yan, Longjia; Wang, Qin; Liu, Li; Le, Yi published the artcile< Design, synthesis and biological evaluation of a series of dianilinopyrimidines as EGFR inhibitors>, Application of C19H34O2, the main research area is anilino trifluoromethyl pyrimidinyl thiophenamide preparation EGFR inhibition antitumor pharmacokinetics; Design; EGFR; antitumor; inhibitor; synthesis.

This paper described our efforts to develop dianilinopyrimidines as novel EGFR inhibitors. All the target compounds were tested for inhibitory effects against wild type EGFR (EGFRwt) and three tumor cells, including A549, PC-3, and HepG2. Some of the compounds performed well in antitumor activities. Especially, compound 2-((2-((4-(3-fluorobenzamido)phenyl)amino)-5-(trifluoromethyl) pyrimidin-4-yl)amino)-N-methylthiophene-3-carboxamide showed higher anti-tumor activities than Gefitinib. The IC50 values of compound 2-((2-((4-(3-fluorobenzamido)phenyl)amino)-5-(trifluoromethyl) pyrimidin-4-yl)amino)-N-methylthiophene-3-carboxamide against A549, PC-3, and HepG2. reached 0.56 μM, 2.46 μM, and 2.21 μM, resp. In addition, further studies indicated that compound 2-((2-((4-(3-fluorobenzamido)phenyl)amino)-5-(trifluoromethyl) pyrimidin-4-yl)amino)-N-methylthiophene-3-carboxamide could induce apoptosis against A549 cells and arrest A549 cells in the G2/M phase. Mol. docking studies showed that compound 2-((2-((4-(3-fluorobenzamido)phenyl)amino)-5-(trifluoromethyl) pyrimidin-4-yl)amino)-N-methylthiophene-3-carboxamidecould closely interact with EGFR. Generally, compound 2-((2-((4-(3-fluorobenzamido)phenyl)amino)-5-(trifluoromethyl) pyrimidin-4-yl)amino)-N-methylthiophene-3-carboxamide was the potential for developing into an anti-tumor drug.

Journal of Enzyme Inhibition and Medicinal Chemistry published new progress about Antitumor agents. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application of C19H34O2.

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

Wafti, Nur Sulihatimarsyila Abd; Yunus, Robiah; Lau, Harrison Lik Nang; Yaw, Thomas Choong Shean; Aziz, Suraini Abdul published the artcile< Immobilized lipase-catalyzed transesterification for synthesis of biolubricant from palm oil methyl ester and trimethylolpropane>, COA of Formula: C19H34O2, the main research area is Biocatalysts; Enzyme; Palm oil; Physicochemical; Polyol esters.

Abstract: The present study reports the effects of three com. immobilized lipases namely Novozyme 435 from Candida antarctica lipase B (CALB), Lipozyme TL IM from Thermomyces lanuginosus and Lipozyme RM IM from Rhizomucor miehei on the production of trimethylolpropane (TMP) ester from high oleic palm Me ester (HO-PME) and TMP. The TMP ester is a promising base oil for biolubricants that are easily biodegradable and non-toxic to humans and the environment. Enzymic catalysts are insensitive to free fatty acid (FFA) content, hence able to mitigate the side reactions and consequently reduce product separation cost. The potential of these enzymes to produce TMP ester in a solvent-free medium was screened at various reaction time (8, 23, 30 and 48 h), operating pressure (0.1, 0.3 and 1.0 mbar) and enzyme dosage (1, 3, 5 and 10% weight/weight). The reaction was conducted at a constant temperature of 70 °C and a molar ratio of 3.9:1 (HO-PME: TMP). Novozyme 435 produced the highest yield of TMP ester of 95.68 ± 3.60% under the following conditions: 23 h reaction time, 0.1 mbar operating pressure and 5% weight/weight of enzyme dosage. The key lubrication properties of the produced TMP ester are viscosity index (208 ± 2), pour point (- 30 ± – 2 °C), cloud point (- 15 ± – 2 °C), onset thermal degradation temperature (427.8 °C), and oxidation stability, RPVOT (42 ± 4 min). The properties of the TMP ester produced from the enzymic transesterification are comparable to other vegetable oil-based biolubricants produced by chem. transesterification.

Bioprocess and Biosystems Engineering published new progress about 112-63-0. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, COA of Formula: C19H34O2.

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