Month: October 2022

Ionescu, Andreea; Lento, Raffaella; Mastropietro, Teresa F.; Aiello, Iolinda; Termine, Roberto; Golemme, Attilio; Ghedini, Mauro; Bellec, Nathalie; Pini, Elena; Rimoldi, Isabella; Godbert, Nicolas published the artcile< Electropolymerized Highly Photoconductive Thin Films of Cyclopalladated and Cycloplatinated Complexes>, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is phenylpyridine cycloplatinated cyclopalladated Schiff base preparation electropolymerized photoconductive film; cyclopalladated cycloplatinated phenylpyridine Schiff base complex preparation electropolymerized film; electropolymerization; palladium(II) complexes; photoconductivity.

The complete characterization of novel electropolymerizable organometallic complexes is presented. These are newly synthesized cyclometalated complexes of general formula (PPy)M(O^N)n (H(PPy) = 2-phenylpyridine, M = Pd(II) or Pt(II), H(O^N)n = Schiff base). Polymeric thin films have been obtained from these complexes by electropolymerization of the triphenylamino group grafted onto the H(O^N)n ancillary ligand. The redox behavior and the photoconductivity of both of the monomers (PPy)M(O^N)n and the electropolymerized species have been investigated. The polymeric films of (PPy)M(O^N)n have shown a very significant enhancement of photoconductivity when compared to their monomeric amorphous counterparts. The high stability of the obtained films strongly suggests that electropolymerization of cyclometalated complexes represents a viable deposition technique of quality thin films with improved photoconduction properties, hence opening the door to a new class of materials with suitable properties for optoelectronic applications.

ACS Applied Materials & Interfaces published new progress about Crystal structure. 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

Morita, Iwao; Haruta, Yuko; Tomita, Toshio; Tsuda, Masami; Kandori, Kazuhisa; Kise, Masahiro; Kimura, Kiyoshi published the artcile< Syntheses and antihypertensive activities of 1,4-dihydropyridine-5-phosphonate derivatives. III>, COA of Formula: C7H12O5, the main research area is cyclocondensation arylideneacetonylphosphonate aminocrotonate; hydropyridinephosphonate preparation antihypertensive activity; pyridinephosphonate phenyldihydro preparation antihypertensive activity.

Phenyldihydropyridinephosphonates I [RR = (CH2)3, CH2CMe2CH2; R = CO2Me, allyl; R1 = 2-NO2, 2-CF3, 2-OCHF2, 3-NO2; R2 = Me, CH2CHMe2, CH2CH2OCH2Ph, CH2CH2OMe, CH2CH2NMeCH2Ph, allyl; R3 = Me, Et, Pr, allyl, CH2Ph, CH2CH2OMe, NMe2; R4 = Me] were prepared by the cyclocondensation reaction of R3NHCMe:CHCO2R2 with R1C6H4CH:CAcP(O)(OR)2 (II). I [R = allyl, RR = (CH2)3; R1 = 2-NO2, 3-NO2, 2-CF3; R2 = Me; R3 = H; R4 = CH(OMe)2] were prepared similarly by the reaction of II with (MeO)2CHC(NH2):CHCO2Me. I [R4 = CH(OMe)2] was deprotected to give I (same R-R3; R4 = CHO). The latter were converted to I (R4 = CH2OH, CH:NOH, cyano). I were all tested for antihypertensive activity in normotensive and spontaneously hypertensive rats. I [RR = (CH2)3, R1 = 2-NO2, R2 = Me, R3 = R4 = Me] shows higher antihypertensive activity than nifedipine, but lower than DHP-218.

Chemical & Pharmaceutical Bulletin published new progress about Antihypertensives. 60705-25-1 belongs to class esters-buliding-blocks, and the molecular formula is C7H12O5, COA of Formula: C7H12O5.

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

Gao, Shuang; Bethel, Travis K.; Kakeshpour, Tayeb; Hubbell, Grace E.; Jackson, James E.; Tepe, Jetze J. published the artcile< Substrate Controlled Regioselective Bromination of Acylated Pyrroles Using Tetrabutylammonium Tribromide (TBABr3)>, Application of C19H34O2, the main research area is acylated pyrrole tetrabutylammonium tribromide bromination; bromopyrrole regioselective preparation.

Electrophilic bromination of pyrroles bearing carbonyl substituents at C-2 typically results in a mixture of the 4- and 5-brominated species, generally favoring the 4-position. Herein, it is describe a substrate-controlled regioselective bromination in which tetra-Bu ammonium tribromide (TBABr3) reacts with pyrrole-2-carboxamide substrates to yield the 5-brominated species as the predominant (up to >10:1) product.

Journal of Organic Chemistry published new progress about Bromination. 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

Biellmann, Jean-Francois; Ducep, Jean-Bernard published the artcile< Allylic and benzylic carbanions substituted by heteroatoms>, Synthetic Route of 112-63-0, the main research area is review Substituted; review Carbanions; review Benzylic; review Allylic; review Heteroatoms.

A review of the article Allylic and benzylic carbanions substituted by heteroatoms.

Organic Reactions (Hoboken, NJ, United States) published new progress about Organic synthesis. 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

Maemoto, Michihiro; Hirata, Yuuki; Hosoe, Shintaro; Ouchi, Jun; Uchii, Masako; Takada, Hidenori; Akizawa, Emi; Yanagisawa, Arata; Shuto, Satoshi published the artcile< Development of potent non-acylhydrazone inhibitors of intestinal sodium-dependent phosphate transport protein 2b (NaPi2b)>, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is hyperphosphatemia intestine NaPi2b hepatic toxicity pharmacokinetics; Acylhydrazone; Hyperphosphatemia; Low oral bioavailability; NaPi2b; Zwitterionic compound.

Inhibition of intestinal sodium-dependent phosphate transport protein 2b (NaPi2b), responsible for intestinal phosphate absorption, is considered to reduce serum phosphate levels, making it a promising therapeutic approach for hyperphosphatemia. Previously, we aimed to identify new drugs for hyperphosphatemia treatment and obtained zwitterionic compound 3 (IC50 = 64 nM) as a potent selective inhibitor of intestinal NaPi2b. This small-mol. compound is gut-restricted owing to its almost membrane-impermeable property. However, when compound 3, containing an acylhydrazone structure, is exposed to plasma, it is easily metabolized and likely produces an acetylhydrazine compound Clin. studies have shown that acetylhydrazine is a risk factor for hepatic toxicity owing to its microsomal metabolism, wherein toxic reactive intermediates are formed. Therefore, in this study, we aimed to obtain potent NaPi2b inhibitors without an acylhydrazone structure to reduce the risk of hepatic toxicity. We developed compound 18, an anilide compound with zwitterionic property having potent phosphate uptake inhibitory activity in vitro (IC50 = 14 nM) and low bioavailability (FaFg = 5.9%). Oral administration of compound 18 in rats showed a reduction in phosphate absorption comparable to that observed with lanthanum carbonate, a clin. effective phosphate binder used in hyperphosphatemia treatment. Moreover, combined administration of compound 18 and lanthanum carbonate resulted in an additive effect on phosphate absorption inhibition in rats. Our findings suggest that combination therapy with lanthanum carbonate and compound 18 will not only provide better treatment outcomes for hyperphosphatemia but also reduce gastrointestinal side effects in patients.

Bioorganic & Medicinal Chemistry published new progress about Body weight. 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

Leng, Weinan; Woo, Han Young; Vak, Doojin; Bazan, Guillermo C.; Kelley, Anne Myers published the artcile< Surface-enhanced resonance Raman and hyper-Raman spectroscopy of water-soluble substituted stilbene and distyrylbenzene chromophores>, Formula: C19H34O2, the main research area is SERS hyper Raman substituted stilbene styrylbenzene chromophore.

Surface-enhanced Raman spectra (SERS) are presented for two water-soluble, donor-donor- or donor-acceptor-substituted phenylene vinylene derivatives adsorbed on the surfaces of colloidal silver nanoparticles. The normally water-insoluble, substituted stilbene and distyrylbenzene chromophores have been modified by attaching trimethylammoniumalkyl chains to the amino donor group, creating both aqueous solubility and a net pos. charge that facilitates binding to citrate- or borohydride-reduced silver colloids. A sym. donor-substituted distyrylbenzene exhibits strong electronically pre-resonant SERS spectra that are not highly dependent on excitation wavelength and are qual. similar to the solution-phase resonance Raman (RR) spectra. A donor-acceptor-substituted stilbene exhibits weaker SERS enhancement despite being fully electronically resonant. The spectra vary considerably with excitation wavelength and show new lines not present in the solution-phase spectra, which are attributed to a photoproduct formed on the surface. Two-photon resonant hyper-Raman spectra are also presented for the donor-acceptor stilbene, both with and without surface enhancement.

Journal of Raman Spectroscopy published new progress about Hyper-Raman spectra. 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

Cao, Xi; Dong, Heda; Chen, Han; Xu, Qiong; Yin, Dulin published the artcile< Efficient synthesis of γ-valerolactone from ethyl levulinate over Ni/V2O5>, Category: esters-buliding-blocks, the main research area is valerolactone synthesis solid phase grinding.

Valerolactone (GVL) has been recognized as one of the most value-added chems. derived from biomass. In this work, an efficient Ni/V2O5 catalyst was prepared via solid phase grinding and in-situ reduction The Ni/V2O5 catalyst was employed for catalytic transfer hydrogenation (CTH) of Et levulinate (EL) to GVL using 2-propanol as a hydrogen source. An excellent GVL selectivity of 93.04% at EL conversion of 97.40% could be achieved at 180°C in 4 h using 30% Ni/V2O5 as the catalyst. This catalyst was able to be reused for five times with the GVL selectivity decreased a little. A possible adsorption mechanism of generate active H species in CTH of EL over Ni/V2O5 was proposed.

IOP Conference Series: Materials Science and Engineering published new progress about Polyester rubber, butadiene-valerolactone, block, diblock Role: SPN (Synthetic Preparation), PREP (Preparation). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Category: esters-buliding-blocks.

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

Tripathi, P. N.; Mishra, Vibhanjali published the artcile< Toxicological study of nitrobenzene derivatives against tetrahymena pyriformis using topological parameters>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is Tetrahymena nitrobenzene derivative QSTR.

Eight topol. descriptors namely molar refractivity, solvent accessible surface area (SASA), shape index (order-1), shape index (order-2), shape index (order-3), valence connectivity index (order-0), valence connectivity index (order-1) and valence connectivity index (order-2) of fifty four nitrobenzene derivatives have been calculated with the help of CAChe Pro of Fujitsu software. Observed toxicities of all compounds are in terms of -log (IGC50), mM, which is the inverse logarithm of the concentration causing 50% growth inhibition of Tetrahymena pyriformis after 40 h. These eight descriptors have been used in developing QSTR models with the help of multi linear regression (MLR) anal. The quality of regression has been adjudged by correlation coefficient, cross validation coefficient and statistical parameters like standard error, standard error of estimate, degrees of freedom etc. The QSTR model developed from descriptors molar refractivity, solvent accessible surface area, shape index (order-1) and valence connectivity index (order-2) have very high predictive power and can be used to find out the toxicity of any new derivative of nitrobenzene. Reliable QSTR model has been obtained from single descriptor shape index (order-1) which is also present in all best four QSTR models. Therefore, shape index (order-1) appears an important descriptor for the toxicol. study of nitrobenzene derivatives

Journal of Chemical and Pharmaceutical Research published new progress about Molar refraction. 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

Hiddinga, Birgitta; Zwaenepoel, Karen; Janssens, Annelies; Van Meerbeeck, Jan; Pauwels, Patrick published the artcile< Are anaplastic lymphoma kinase (ALK) and O6-methylguanine-DNA methyltransferase (MGMT) promoter methylation driver biomarkers of pulmonary neuroendocrine tumors (NETs) and carcinomas (NECs)?>, Synthetic Route of 112-63-0, the main research area is MGMT promoter methylation; anaplastic lymphoma kinase; neuroendocrine carcinoma; neuroendocrine tumor; small cell lung cancer.

BACKGROUND: Novel targets in neuroendocrine tumors (NETs) and neuroendocrine carcinomas (NECs) are needed to improve outcome. The presence of O6-Methylguanine-DNA methyltransferase (MGMT) promoter methylation in NETs and NECs may act as a predictive marker for response on treatment with temozolomide. As anaplastic lymphoma kinase (ALK) plays an important role in the nervous system we hypothesized that ALK rearrangement can act as a biomarker in patients with NETs and NECs. MATERIALS AND METHODS: We performed a retrospective analysis to establish the frequency of MGMT promoter methylation and ALK expression in tissue samples of patients with NETs and NECs. RESULTS: 21% (14/67) of patients tested positive for MGMT promoter methylation. MGMT promoter methylation was present in 33% (3/9) patients with typical carcinoid, in 22% (2/9) patients with atypical carcinoid, in 22% (8/37) patients with small cell lung cancer and in 8% (1/12) patient with large cell neuroendocrine carcinoma. ALK- expression was present in 14% (10 of 70 patients). In all of these patients, no ALK-rearrangement nor ALK-mutation was revealed. CONCLUSIONS: Routine testing of NET and NEC samples for an ALK rearrangement is not recommended as ALK-expression is not associated with an ALK-rearrangement. Routine testing of NET and NEC samples for MGMT will detect a promoter hypermethylation in a sizable minority of patients who are eligible for a targeted treatment with temozolomide.

Oncotarget published new progress about 112-63-0. 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

Szentirmai, Eva; Kapas, Levente published the artcile< Nicotinic acid promotes sleep through prostaglandin synthesis in mice>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is nicotinic acid prostaglandin sleep mice.

Nicotinic acid has been used for decades for its antiatherogenic properties in humans. Its actions on lipid metabolism intersect with multiple sleep regulatory mechanisms, but its effects on sleep have never been documented. For the first time, we investigated the effects of acute systemic administration of nicotinic acid on sleep in mice. I.p. and oral gavage administration of nicotinic acid elicited robust increases in non-rapid-eye movement sleep (NREMS) and decreases in body temperature, energy expenditure and food intake. Preventing hypothermia did not affect its sleep-inducing actions suggesting that altered sleep is not secondary to decreased body temperature Systemic administration of nicotinamide, a conversion product of nicotinic acid, did not affect sleep amounts and body temperature, indicating that it is not nicotinamide that underlies these actions. Systemic administration of monomethyl fumarate, another agonist of the nicotinic acid receptor GPR109A, fully recapitulated the somnogenic and thermoregulatory effects of nicotinic acid suggesting that they are mediated by the GPR109A receptor. The cyclooxygenase inhibitor indomethacin completely abolished the effects of nicotinic acid indicating that prostaglandins play a key role in mediating the sleep and thermoregulatory responses of nicotinic acid.

Scientific Reports published new progress about Electroencephalogram. 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