Category: 112-63-0

Lam, Hon Wai; Joensuu, Pekka M. published the artcile< Cu(I)-Catalyzed reductive aldol cyclizations: Diastereo- and enantioselective synthesis of β-hydroxy lactones>, SDS of cas: 112-63-0, the main research area is stereoselective cyclization hydroxycarboxylic acid hydroxy ketone ester; copper catalyst aldol cyclization hydroxy lactone.

Copper bisphosphine complexes catalyze the intramol. reductive aldol reaction of α,β-unsaturated esters with ketones, affording five- and six-membered β-hydroxy lactones in high stereoselectivities. Thus, reaction of trans-MeCOCH2CH2O2CCH:CHPh in THF containing Cu(OAc)2, 1,1′-bis(diphenylphosphino)ferrocene, and tetramethyldisilazane gave the hydroxypyranone I in 72% yield. Utilization of chiral nonracemic bisphosphines rendered the cyclizations enantioselective.

Organic Letters published new progress about Aldol condensation catalysts (intramol.). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, SDS of cas: 112-63-0.

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

Borhan, Marisa Khatijah; Tan, Florence Hui Sieng published the artcile< Aggressive giant prolactinoma: a case report.>, Quality Control of 112-63-0, the main research area is Aggressive prolactinoma; Case report; Giant prolactinoma; Temozolomide.

BACKGROUND: Managing treatment-resistant aggressive giant prolactinoma can be challenging, as the diagnosis is often complex, and treatment beyond dopamine agonists, surgery, and radiotherapy is limited. CASE PRESENTATION: A 21-year-old Malay woman first presented to our hospital at the age of 16 years with 1-year history of reduced vision and 2 years of amenorrhea. Her baseline prolactin level was 255,894 µIU/mL with secondary hypogonadism, and pituitary magnetic resonance imaging revealed a giant prolactinoma (2.8 × 3.2 × 4.2 cm3) with suprasellar extension and optic chiasmal compression. She was initially treated with cabergoline, and reductions in the prolactin level and tumor mass were achieved, leading to vision improvement and resumption of normal menstruation. However, she developed recurrent tumor growth and hyperprolactinemia, causing relapse of symptoms, and she needed surgery. Eventually, despite three tumor debulking surgeries and escalation of cabergoline doses up to 1 mg/day, her tumor progressed with aggressive characteristics. Following a multidisciplinary meeting, the patient is initiated on temozolomide therapy after considering the long-term side effects of radiotherapy in her case. CONCLUSION: This case highlights the importance of early identification of treatment-resistant prolactinoma and the need for a multidisciplinary approach in managing aggressive prolactinoma in young patients, particularly regarding timely implementation of temozolomide therapy.

Journal of medical case reports published new progress about 112-63-0. 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

Sarmah, Bikash Kumar; Konwar, Monuranjan; Bhattacharyya, Dipanjan; Adhikari, Priyanka; Das, Animesh published the artcile< Regioselective Cyanation of Six-Membered N-Heteroaromatic Compounds Under Metal-, Activator-, Base- and Solvent-Free Conditions>, Formula: C19H34O2, the main research area is heteroaromatic nitrogen oxide preparation trimethylsilyl cyanide cyanation microwave irradiation; cyano azaarene preparation regioselective.

A regioselective cyanation of heteroaromatic N-oxides with trimethylsilyl cyanide was developed to obtain 2-substituted N-heteroaromatic nitriles without the requirement of any external activator-, metal-, base- and solvent. The present protocol was a straightforward, one-pot heteroaromatic C-H cyanation process and proceeded smoothly in conventional heating but also under microwave irradiation with shorter reaction times. This approach now allowed access to a broad class of quinoline N-oxides and other heteroarene N-oxides with high to good yields and can also be scaled up to obtain gram quantities. Further application of this process was observed and utilized in late-stage cyanation of the anti-malarial drug quinine as well as transformation of the 2-cyanoazines to a series of biol. important mols. Based on the exptl. observations, a plausible mechanism was also proposed highlighting the dual role of trimethylsilyl cyanide as a nitrile source and as an activating agent.

Advanced Synthesis & Catalysis published new progress about Aromatic nitriles Role: PRP (Properties), RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Formula: C19H34O2.

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

Yan, Xiuwei; Ji, Hang; Liu, Zhihui; Ma, Shuai; Dong, Jiawei; Jiang, Xiaoyan; Hu, Xueyan; Wang, Fang; Zhao, Hongtao; Jin, Jiaqi; Zhang, Jiheng; Wang, Nan; Du, Jianyang; Hu, Shaoshan published the artcile< Characterization of the ferroptosis-related genes for prognosis and immune infiltration in low-grade glioma>, Application In Synthesis of 112-63-0, the main research area is immune microenvironment gene expression ferroptosis prognosis low grade glioma; autophagy; ferroptosis; ferroptosis-related prognostic model; hypoxia; immune microenvironment; low-grade glioma; prognostic prediction.

Although ferroptosis has been validated to play a crucial role in some types of tumors, the influence of ferroptosis-related genes (FRGs) on the immune microenvironment in low-grade glioma (LGG) remains unclear. In this research, we screen the FRGs to assess the prognosis value and immune microenvironment in LGG, to provide reliable diagnosis and treatment evidence for the clinic. A total of 1,239 patients of LGG samples were selected for subsequent analyses from The Cancer Genome Atlas, Chinese Glioma Genome Atlas, and the Repository of Mol. Brain Neoplasia Data datasets. Univariate Cox regression anal. was used to screen for prognostic FRGs. Consensus clustering was utilized to determine ferroptosis subtypes of LGG patients. Next, the prognostic model was constructed based on differentially expressed FRGs and validation in the validating datasets. The immune microenvironment, biol. pathway, and hypoxia score were explored by single-sample gene set enrichment anal. The potential response of chemotherapy and immune checkpoint blockade therapy was also estimated In addition, the correlation between the risk score and autophagy-related genes was examined by the Pearson correlation coefficient A total of three ferroptosis subtypes were identified by consensus clustering for prognostic FRGs which exhibited different outcomes, clinicopathol. characteristics, and immune microenvironment. Afterward, a prognostic model that performed great predictive ability based on nine prognostic FRGs has been constructed and validated. Moreover, the prognostic model had the potential to screen the sensitivity to chemotherapy and immunotherapy in LGG patients. Finally, we also found that the prognostic model has a great connection to autophagy and hypoxia. Conclusion: We developed a ferroptosis-related prognostic model which strongly linked to diagnosis, treatment, prognosis, and recurrence of LGG. This study also reveals the connection between ferroptosis and tumor immune microenvironment.

Frontiers in Genetics published new progress about Animal gene Role: BSU (Biological Study, Unclassified), PRP (Properties), BIOL (Biological Study) (BAG1). 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

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