Category: 112-63-0

Boeseken, J.; Slooff, G.; Hoeffelman, J. M.; Hirsch, H. E. published the artcile< Action of 2-hydroxycyclopentanecarboxylic acids on the electrical conductivity of boric acid. Mobility of the cyclopentane ring>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is .

Aliphatic α-OH acids exert a very pronounced action on the elec. conductivity of H3BO3, while β-OH acids are indifferent. Although aromatic o-hydroxy carboxylic acids are β-OH acids, they exert a pos. action on the conducting power of H3BO3 comparable with that of aliphatic α-OH acids. Evidently the position of the OH and CO2H groups is very favorable to “”aromatic tension””-the tension due to the fact that all the groups united directly with the benzene ring are forced to lie in the plane of the ring. It was to be expected that the cis-2-hydroxycyclopentanecarboxylic acids, being β-OH acids, could exert a pos. action on the conductivity of H3BO3, not only because the complex activities of the open chain β-OH acids have disappeared, but also because the position of the OH and CO2H groups in the cis-isomers is favorable to the formation of a hexatomic ring. Results obtained by the authors in the investigation of certain acids have confirmed this hypothesis. Two 2-borneol-3-carboxylic acids are known, I (m. 102°) and II (m. 175°). I increases the conductivity of H3BO3 and is therefore the cis-isomer; this is also in accord with the values of the electrolytic dissociation constant The fact that II is difficultly attacked by KMnO4 is proof of its trans-configuration, for in the trans-isomer the OH and CO2H groups are not situated in such a way as to favor the formation of a complex with KMnO4. II does not react with Me2CO or chloral; I reacts with Me2CO to give a solid, m. 124°, and with chloral to give a chloralide, m. 191°. 2-Hydroxycyclohexanecarboxylic acid (III), only 1 form (m. 111°) of which the authors were able to obtain, decreased the conductivity of H3BO3. The cyclohexane ring being much more mobile than the pentatomic ring, the OH and CO2H groups will occupy a much less fixed position in this acid than in the hydroxycyclopentanoic acids. In that case the situation in the cis-isomer may be almost as unfavorable as in the trans-isomer. Although a chloralide (m. 142°) of III was obtained, this is no more a proof that the acid has the cis-configuration than the neg. conduction with reference to H3BO2 is a proof of the trans-configuration. From the mother liquors of some preparations of III was obtained a small quantity of a sirup. After distillation it crystallized slowly to a solid which m. 57-63° and increased the conductivity of H3BO3. At best it may be said that III is probably the trans-acid. Cyclization of Et adipate by Na, reduction of the product with H2 and Ni, treatment with KOH in MeOH and addition of acid gave a viscous oil which would not crystallize. This mixture of cis- and trans-2-hydroxycyclopentanecarboxylic acids was separated by means of Me2CO, since only the cis-isomer forms a volatile cyclic acetal with Me2CO. During acetonization in the presence of P2O5 the trans-acid was transformed into its cis-isomer. The Me2CO compounds when hydrolyzed gave acids which increased the conductivity of H3BO3, indicating their cis-configuration. To Et 3-methyladipate in PhMe was added a few drops of absolute EtOH and some Na wire. After the vigorous reaction had ceased, the solid mass of Na salts was heated for a time at 150°, then suspended in Et2O and acidified. The product b40 130-5° and on reduction with H2 and Ni at 150-60° under pressure gave a mixture of the esters of 4- and 5-methyl-2-hydroxycyclopentanecarboxylic acids, b. 72-82° in cathode vacuum. Saponification of the esters gave a mixture of cis- and trans-acids, which was separated by acetonization in the presence of P2O5. No isomerization of trans-acid to the cis-acid occurred, owing to stabilization by the Me group of the cyclopentane ring. From the Me2CO solution was obtained on distillation the Et ester of 5-methyl-2-hydroxycyclopentanecarboxylic acid, b2 115-7°. The marked difference between the increase in conductivity of H3BO3 (0.5 M) produced by borneolcarboxylic acid and that produced by the simple cyclopentanolcarboxylic acids is attributed by the authors to a much more pronounced rigidity of the pentatomic rings of borneol.

Recueil des Travaux Chimiques des Pays-Bas et de la Belgique published new progress about Acids. 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

Young, Michael P.; Schug, Zachary T.; Booth, David M.; Yule, David I.; Mikoshiba, Katsuhiko; Hajnοczky, Gyorgy; Joseph, Suresh K. published the artcile< Metabolic adaptation to the chronic loss of Ca2+ signaling induced by KO of IP3 receptors or the mitochondrial Ca2+ uniporter>, HPLC of Formula: 112-63-0, the main research area is mitochondria calcium uniporter signaling IP3 receptor; IP(3) receptor; TCA cycle; bioenergetics; calcium signaling; glycolysis; mitochondrial calcium uniporter; mitochondrial metabolism.

Calcium signaling is essential for regulating many biol. processes. Endoplasmic reticulum inositol trisphosphate receptors (IP3Rs) and the mitochondrial Ca2+ uniporter (MCU) are key proteins that regulate intracellular Ca2+ concentration Mitochondrial Ca2+ accumulation activates Ca2+-sensitive dehydrogenases of the tricarboxylic acid (TCA) cycle that maintain the biosynthetic and bioenergetic needs of both normal and cancer cells. However, the interplay between calcium signaling and metabolism is not well understood. In this study, we used human cancer cell lines (HEK293 and HeLa) with stable KOs of all three IP3R isoforms (triple KO [TKO]) or MCU to examine metabolic and bioenergetic responses to the chronic loss of cytosolic and/or mitochondrial Ca2+ signaling. Our results show that TKO cells (exhibiting total loss of Ca2+ signaling) are viable, displaying a lower proliferation and oxygen consumption rate, with no significant changes in ATP levels, even when made to rely solely on the TCA cycle for energy production MCU KO cells also maintained normal ATP levels but showed increased proliferation, oxygen consumption, and metabolism of both glucose and glutamine. However, MCU KO cells were unable to maintain ATP levels and died when relying solely on the TCA cycle for energy. We conclude that constitutive Ca2+ signaling is dispensable for the bioenergetic needs of both IP3R TKO and MCU KO human cancer cells, likely because of adequate basal glycolytic and TCA cycle flux. However, in MCU KO cells, the higher energy expenditure associated with increased proliferation and oxygen consumption makes these cells more prone to bioenergetic failure under conditions of metabolic stress.

Journal of Biological Chemistry published new progress about Autophagy-related protein ATG8 Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, HPLC of Formula: 112-63-0.

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

Ghisaidoobe, Amar T.; van den Berg, Richard J. B. H. N.; Butt, Saleem S.; Strijland, Anneke; Donker-Koopman, Wilma E.; Scheij, Saskia; van den Nieuwendijk, Adrianus M. C. H.; Koomen, Gerrit-Jan; van Loevezijn, Arnold; Leemhuis, Mark; Wennekes, Tom; van der Stelt, Mario; van der Marel, Gijsbert A.; van Boeckel, Constant A. A.; Aerts, Johannes M. F. G.; Overkleeft, Herman S. published the artcile< Identification and Development of Biphenyl Substituted Iminosugars as Improved Dual Glucosylceramide Synthase/Neutral Glucosylceramidase Inhibitors>, Synthetic Route of 112-63-0, the main research area is biphenyl iminosugar preparation glucosylceramide synthase glucosylceramidase inhibitor.

This work details the evaluation of a number of N-alkylated deoxynojirimycin derivatives on their merits as dual glucosylceramide synthase/neutral glucosylceramidase inhibitors. Building on the previous work, the authors synthesized a series of D-gluco and L-ido-configured iminosugars N-modified with a variety of hydrophobic functional groups. The authors found that iminosugars featuring N-pentyloxymethylaryl substituents are considerably more potent inhibitors of glucosylceramide synthase than their aliphatic counterparts. In a next optimization round, the authors explored a series of biphenyl-substituted iminosugars of both configurations (D-gluco and L-ido) with the aim to introduce structural features known to confer metabolic stability to drug-like mols. From these series, two sets of mols. emerge as lead series for further profiling. Biphenyl-substituted L-ido-configured deoxynojirimycin derivatives are selective for glucosylceramidase and the nonlysosomal glucosylceramidase, and the authors consider these as leads for the treatment of neuropathol. lysosomal storage disorders. Their D-gluco-counterparts are also potent inhibitors of intestinal glycosidases, and because of this characteristic, the authors regard these as the prime candidates for type 2 diabetes therapeutics.

Journal of Medicinal Chemistry published new progress about Antidiabetic agents. 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

Sakamoto, Toshihiro; Moriya, Minoru; Haga, Yuji; Takahashi, Toshiyuki; Shibata, Takunobu; Okamoto, Osamu; Nonoshita, Katsumasa; Kitazawa, Hidefumi; Hidaka, Masayasu; Gomori, Akira; Iwaasa, Hisashi; Ishihara, Akane; Kanatani, Akio; Fukami, Takehiro; Gao, Ying-Duo; MacNeil, Douglas J.; Yang, Lihu published the artcile< Identification of novel and orally active spiroindoline NPY Y5 receptor antagonists>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is spiro indoline piperidine preparation Y5 receptor antagonist.

A series of spiroindoline-3,4′-piperidine derivatives were synthesized and evaluated for their binding affinities and antagonistic activities at Y5 receptors. Potent Y5 antagonists were tested for their oral bioavailabilities and brain penetration in rats. Some of the antagonists showed good oral bioavailability and/or good brain penetration. In particular, I was orally bioavailable and brain penetrant, and oral administration of I inhibited bPP-induced food intake in rats with a min. ED of 10 mg/kg.

Bioorganic & Medicinal Chemistry Letters published new progress about Neuropeptide Y receptors, Y5 Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Al-Taie, Zahraa S.; Bartholomew, Barbara; Cartmell, Christopher; Froom, Richard T.; Kerr, Russell G.; Kraehenbuehl, Rolf; Murphy, Patrick J.; Nash, Robert J.; Penkova, Yana B.; van Teijlingen, Alexander published the artcile< Synthesis of (+)-(R)-Tiruchanduramine>, Formula: C19H34O2, the main research area is tiruchanduramine total synthesis; Synoicum macroglossum; guanidines; tiruchanduramine; β-carboline.

The absolute stereochem. of the marine alkaloid (+)-(R)-tiruchanduramine was established via a convergent total synthesis in six steps and 15.5% overall yield from Fmoc-D-Dab(Boc)-OH.

Molecules published new progress about Alkaloids Role: SPN (Synthetic Preparation), 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

Zaid, Mohammed; Singh, Yashvir; Kumar, Avinash; Gupta, Sanchit published the artcile< Development of the Calophyllum inophyllum based biolubricant and their tribological analysis at different conditions>, Application In Synthesis of 112-63-0, the main research area is Calophyllum oil trimethylolpropane modification biolubricant tribol.

Disposal of the petroleum lubricants creates problem through degradation of the environment. To address this issue, a substitute should be available which can provide the same properties available while considering petroleum lubricant. Calophyllum inophyllum is one of the feasible oil which is available in abundant quantity. In this study, Calophyllum inophyllum oil was undergone through the chem. modification process and after that tribol. characterization was performed. The modified oil was blended with the mineral oil in certain ratios including 5-15% blend. Min. COF was observed with 5% and 10% blends which gets increased with 15% blend application. Wear rate and wear scar diameter also shows the same behavior at all applied conditions. It can be concluded that up to 10% blend of modified Calophyllum inophyllum oil provides better lubricity with comparison to the mineral oil during all conditions considered.

Materials Today: Proceedings published new progress about Acid number. 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

Vos, Alinda G.; Venter, W. D. F. published the artcile< Cardiovascular toxicity of contemporary antiretroviral therapy>, HPLC of Formula: 112-63-0, the main research area is review HIV cardiovascular toxicity antiretroviral therapy.

A review. HIV treatment has evolved since the introduction of antiretroviral therapy (ART) in the 1990s. Earlier treatment strategies, and the introduction of integrase inhibitors in preferred first-line ART have fundamentally changed cardiovascular side effects due to HIV infection and ART. This review provides an update on cardiovascular toxicity of contemporary ART. Cardiovascular disease (CVD) risk, including heart failure, is still increased in people living with HIV (PLWH). Exposure to older antiretrovirals, including stavudine and zidovudine, still impact on CVD risk through persistent changes in body fat distribution years after discontinuation. Protease inhibitors (PI) and efavirenz have associated metabolic disturbances and increased risk of CVD, although use is decreasing worldwide. Integrase inhibitors and CCR5 antagonists seem to have negligible immediate CVD toxicity. Weight gain on newer antiretrovirals including integrase inhibitors is a reason for concern. CVD risk should be monitored carefully in PLWH who were exposed to first generation ART, efavirenz or to PIs. Registries should capture ART use and CVD events to stay informed on actual clin. risk in the current era of rapid initiation on integrase inhibitor-based ART.

Current Opinion in HIV & AIDS published new progress about Adipose tissue. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, HPLC of Formula: 112-63-0.

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

Battino, Rubin; Rettich, Timothy R.; Tominaga, Toshihiro published the artcile< The solubility of nitrogen and air in liquids>, Application In Synthesis of 112-63-0, the main research area is solubility air nitrogen liquid; seawater air solubility.

The data on the solubilities of N and air in liquids as functions of temperature and pressure were critically evaluated. Recommended or tentative values are presented in form of smoothing equations and/or tables. Trends in homologous series or related solvents are discussed. Data for n-alkanes were smoothed with respect to temperature, pressure, number of C atoms. Liquids include: water, heavy water, seawater, aqueous salt solutions, mixed solvents, hydrocarbons, halogen, S, N, or Si; olive oil, various biol. fluids, H2S, SO2, NH3, CO2, N oxides, organic compounds containing O, and several halogen and B-containing inorganic solvents.

Journal of Physical and Chemical Reference Data published new progress about Air. 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

Wang, Anzhu; Zhao, Wei; Yan, Kaituo; Huang, Pingping; Zhang, Hongwei; Ma, Xiaochang published the artcile< Preclinical evidence of paeoniflorin effectiveness for the management of cerebral ischemia/reperfusion injury: a systematic review and meta-analysis>, Electric Literature of 112-63-0, the main research area is meta analysis cerebral ischemia reperfusion injury paeoniflorin; animal studies; cerebral ischemia-reperfusion injury; paeoniflorin; potential mechanisms; preclinical evidence.

Meta-anal. of vessel recanalization is the main treatment for ischemic stroke; however, not all patients benefit from it. This lack of treatment benefit is related to the accompanying ischemia-reperfusion (I/R) injury. Therefore, neuroprotective therapy for I/R Injury needs to be further studied. Paeonia lactiflora Pall. is a commonly used for ischemic stroke management in traditional Chinese medicine; its main active ingredient is paeoniflorin (PF). We aimed to determine the PF’s effects and the underlying mechanisms in instances of cerebral I/R injury. We searched seven databases from their inception to July 2021.SYRCLE’s risk of bias tool was used to assess methodol. quality. Review Manager 5.3 and STATA 12.0 software were used for meta-anal. Thirteen studies, including 282 animals overall, were selected. The meta-analyses showed compared to control treatment, PF significantly reduced neurol. severity scores, cerebral infarction size, and brain water content (p = 0.000). In the PF treatment groups, the apoptosis cells and levels of inflammatory factors (IL-1β) decreased compared to those in the control groups (p = 0.000). Our results suggest that PF is a promising therapeutic for cerebral I/R injury management. However, to evaluate the effects and safety of PF in a more accurate manner, addnl. preclin. studies are necessary.

Frontiers in Pharmacology published new progress about Apoptosis. 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

Mao, Jian-Hui; Wang, Zi-Tian; Wang, Zhan-Yong; Cheng, Ying published the artcile< N-Heterocyclic Carbene-Catalyzed Oxidative Annulations of α,β-Unsaturated Aldehydes with Hydrazones: Selective Synthesis of Optically Active 4,5-Dihydropyridazin-3-ones and Pyridazin-3-ones>, SDS of cas: 112-63-0, the main research area is dihydropyridazinone pyridazinone preparation oxidative annulation unsaturated aldehyde hydrazone; nitrogen heterocyclic carbene catalyzed annulation varying catalyst reaction condition.

A novel and efficient method for the highly enantioselective synthesis of chiral 4,5-dihydropyridazin-3-one derivatives has been developed based on the chiral N-heterocyclic carbene-catalyzed oxidative annulation between α,β-unsaturated aldehydes and hydrazones. Meanwhile, the selective synthesis of either 4,5-dihydropyridazin-3-ones or pyridazin-3-one derivatives from the same reactants has been achieved by simply varying catalytic and reaction conditions.

Journal of Organic Chemistry published new progress about Crystal structure. 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