Month: October 2022

Chen, Jian Jeffrey; Liu, Qingyian; Yuan, Chester; Gore, Vijay; Lopez, Patricia; Ma, Vu; Amegadzie, Albert; Qian, Wenyuan; Judd, Ted C.; Minatti, Ana E.; Brown, James; Cheng, Yuan; Xue, May; Zhong, Wenge; Dineen, Thomas A.; Epstein, Oleg; Human, Jason; Kreiman, Charles; Marx, Isaac; Weiss, Matthew M.; Hitchcock, Stephen A.; Powers, Timothy S.; Chen, Kui; Wen, Paul H.; Whittington, Douglas A.; Cheng, Alan C.; Bartberger, Michael D.; Hickman, Dean; Werner, Jonathan A.; Vargas, Hugo M.; Everds, Nancy E.; Vonderfecht, Steven L.; Dunn, Robert T. II; Wood, Stephen; Fremeau, Robert T. Jr.; White, Ryan D.; Patel, Vinod F. published the artcile< Development of 2-aminooxazoline 3-azaxanthenes as orally efficacious β-secretase inhibitors for the potential treatment of Alzheimer's disease>, Computed Properties of 660867-80-1, the main research area is aminooxazoline azaxanthene derivative preparation oral beta secretase inhibitor Alzheimer’s; 3-Azaxanthene; Alzheimer’s disease (AD); Aminooxazoline; Amyloid; Aβ peptides; Xanthene; β-Secretase (BACE1).

The β-site amyloid precursor protein (APP) cleaving enzyme 1 (BACE1) is one of the most hotly pursued targets for the treatment of Alzheimer’s disease. We used a structure- and property-based drug design approach to identify 2-aminooxazoline 3-azaxanthenes as potent BACE1 inhibitors which significantly reduced CSF and brain Aβ levels in a rat pharmacodynamic model. Compared to the initial lead 2, compound 28 exhibited reduced potential for QTc prolongation in a non-human primate cardiovascular safety model.

Bioorganic & Medicinal Chemistry Letters published new progress about Alzheimer disease. 660867-80-1 belongs to class alcohols-buliding-blocks, and the molecular formula is C12H18BNO2, Computed Properties of 660867-80-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Chardon, Aurelien; Rouden, Jacques; Blanchet, Jerome published the artcile< Borinic Acid Mediated Hydrosilylations: Reductions of Carbonyl Derivatives>, Synthetic Route of 403-41-8, the main research area is borinic acid mediated hydrosilylation reduction ketone aldehyde imine.

4-Fluoro-2-chlorophenylborinic acid acts as a precatalyst in the presence of phenylsilane for the facile reduction of ketones, aldehydes and imines. Notably, synergistic mediation of a tertiary amine was found essential to trigger silicon to boron hydride transfer to generate a key amine-diarylhydroborane Lewis complex.

European Journal of Organic Chemistry published new progress about Aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, Synthetic Route of 403-41-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Gao, Heng Ya; Peng, Wen Li; Meng, Pan Pan; Feng, Xue Feng; Li, Jian Qiang; Wu, Hui Qiong; Yan, Chang Sheng; Xiong, Yang Yang; Luo, Feng published the artcile< Correction: Lanthanide separation using size-selective crystallization of Ln-MOFs [Erratum to document cited in CA167:016029]>, Application In Synthesis of 6054-98-4, the main research area is size selective crystallization separation lanthanide olsalazine MOF erratum; crystal structure lanthanide olsalazine MOF preparation erratum.

The authors regret that although the CCDC numbers are correct in the ESI document, the numbers indicated in the manuscript are incorrect. The correct CCDC numbers are included below: 1537206?1537208, 1537213?1537215, 1537218?1537221, 1537250, 1537558, 1545014.

Chemical Communications (Cambridge, United Kingdom) published new progress about Crystal structure. 6054-98-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C14H8N2Na2O6, Application In Synthesis of 6054-98-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Chenavas, Sophie; Fiorini-Puybaret, Christel; Joulia, Philippe; Larrouquet, Camille; Waton, Hugues; Martinez, Agathe; Casabianca, Herve; Fabre, Bernard published the artcile< New formylated phloroglucinol compounds from Eucalyptus globulus foliage>, Related Products of 4396-13-8, the main research area is Eucalyptus formylated phloroglucinol compound acylphloroglucinol.

Two new acylphloroglucinols were isolated from the leaves of Eucalyptus globulus Labill and identified as macrocarpals P (1) and Q (2). Structural elucidations were carried out using conventional 1D and 2D NMR and mass spectrometry together with complementary techniques (UV and IR). Macrocarpal Q was a diastereoisomer of macrocarpal E (3), configuration of which was not precised. Simultaneous isolation of macrocarpals E and Q allowed to determine the configurations of both compounds The diformylphloroglucinol (4) was also isolated as well as already known compounds grandinol, macrocarpals D, I, L, N, O and am-1.

Phytochemistry Letters published new progress about Eucalyptus globulus. 4396-13-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H6O5, Related Products of 4396-13-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Tamoradi, Taiebeh; Ghadermazi, Mohammad; Ghorbani-Choghamarani, Arash; Molaei, Somayeh published the artcile< Synthesis and characterization of oxo-vanadium complex anchored onto SBA-15 as a green, novel and reusable nanocatalyst for the oxidation of sulfides and oxidative coupling of thiols>, Quality Control of 699-12-7, the main research area is SBA15 vanadium complex oxidation oxidative coupling catalyst.

The present work describes the synthesis of a new oxo-vanadium complex immobilized on SBA-15 nanostructure as an efficient catalyst for oxidation of sulfides and oxidative coupling of thiols. Characterization of the resultant AMPD@SBA-15 nanostructure was performed by various physico-chem. techniques such as Fourier transform IR spectroscopy, transmission and scanning electron microscopies, energy-dispersive X-ray spectroscopy, inductively coupled plasma optical emission spectroscopy, X-ray diffraction, thermal gravimetric anal., and N2 adsorption and desorption. The results of the developed procedure bring several benefits such as the use of com. available, ecol. benign, operational simplicity, and cheap and chem. inert reagents. It shows good reaction times, practicability and high efficiency, and is easily recovered from the reaction mixture by simple filtration and reused for several consecutive cycles without noticeable change in its catalytic activity. More importantly, high efficiency, simple and an inexpensive procedure, com. available materials, easy separation, and an eco-friendly procedure are the several advantages of the currently employed heterogeneous catalytic system. Graphical Abstract: [Figure not available: see fulltext.].

Research on Chemical Intermediates published new progress about Oxidation catalysts. 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, Quality Control of 699-12-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Mirfakhraei, Saeideh; Hekmati, Malak; Eshbala, Fereshteh Hosseini; Veisi, Hojat published the artcile< Fe3O4/PEG-SO3H as a heterogeneous and magnetically-recyclable nanocatalyst for the oxidation of sulfides to sulfones or sulfoxides>, Electric Literature of 699-12-7, the main research area is sulfide oxidation; sulfoxide preparation; sulfone preparation; magnetite sulfonated oxidation nanocatalyst.

A sulfonated-polyethylene glycol-coated Fe3O4 nanocomposite (Fe3O4/PEG-SO3H) as a greatly effective and ecol. nanocatalyst for the selective oxidation of sulfides to sulfoxides or sulfones with high yields under solvent-free conditions by employing 30% hydrogen peroxide as the oxidant, is presented. A number of sulfides containing alc., ester, and aldehyde functional groups were effectively and selectively oxidized without altering the desired characteristics. The magnetic nanocatalyst (Fe3O4/PEG-SO3H) can be conveniently and swiftly retrieved through the utilization of an external magnetic tool and recycled for more than 10 reaction runs without significantly decreasing its catalytic behavior.

New Journal of Chemistry published new progress about Nanocatalysts. 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, Electric Literature of 699-12-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Radicioni, Milko; Caverzasio, Carol; Rovati, Stefano; Giori, Andrea Maria; Cupone, Irma; Marra, Fabio; Mautone, Giuseppe published the artcile< Comparative Bioavailability Study of a New Vitamin D3 Orodispersible Film Versus a Marketed Oral Solution in Healthy Volunteers>, HPLC of Formula: 434-16-2, the main research area is vitamin D3 bioavailability orodispersible orally disintegrating film immune system.

An orally disintegrating film (ODF) formulation of vitamin D3 that dissolves rapidly in the mouth without drinking or chewing may be a worthwhile alternative to currently available drug products for therapeutic vitamin D supplementation. This study aimed to compare the bioavailability of a single dose of a vitamin D3 25000 I. U. ODF with those of a marketed oral vitamin D3 preparation in healthy subjects. This Phase 1, randomised, parallel-group, open-label study compared the pharmacokinetics of calcifediol [25(OH)D3], the precursor of bioactive vitamin D3, after a single dose of a new vitamin D3 25,000 I. U. ODF with those of a Reference formulation (vitamin D3 25000 I.U./2.5 mL oral solution) in healthy adult subjects using a validated liquid chromatog.-tandem mass spectrometry (LC-MS/MS) assay. The primary objective was bioavailability under fed conditions, defined as maximum plasma concentration (Cmax) of 25(OH)D3 and area under the concentration-time curve from time zero to time t, the last quantifiable concentration (AUC0-t). The pharmacokinetics of 25(OH)D3 were also evaluated following the ODF administration under fasting conditions. Subjects were randomised to receive a single dose of the vitamin D3 25000 I. U. ODF or the Reference oral solution under fed conditions or the vitamin D3 ODF under fasting conditions. Forty-eight healthy subjects were randomised and completed the study. Overall, the pharmacokinetic profile was very similar across the three treatment groups, and bioavailability did not significantly differ among treatments. Under fed conditions, mean 25(OH)D3 plasma values for Cmax were 6.68 ± 2.03 vs. 6.61 ± 2.62 ng/mL for the Test vs. Reference formulations. Corresponding values for AUC0-t were 2364.80 ± 1336.97 vs. 2150.52 ± 1622.76 ng/mL x h. Mean Cmax was slightly lower (6.68 ± 2.03 vs 7.23 ± 1.48 ng/mL) and the time to reach peak concentration was delayed (144 h 36-312 vs. 42 h 2-480) with the ODF under fed vs. fasting conditions (p = 0.0371). The point estimates and 90% CIs of the Testfed/Referencefed ratios of the geometric means showed that the bioavailability of exogenous 25(OH)D3 was, both in rate and extent of absorption, slightly higher with the vitamin D3 ODF than the vitamin D3 oral solution under the administration conditions recommended for the vitamin D3 oral solution Palatability and ease of use of the ODF were satisfactory. Conclusion: The new ODF 25000 I. U. formulation provided a valuable alternative to the marketed oral solution for therapeutic vitamin D supplementation, with a bioavailability that was slightly higher than that of the vitamin D3 oral solution administered under the same conditions.

Clinical Drug Investigation published new progress about Bioavailability. 434-16-2 belongs to class alcohols-buliding-blocks, and the molecular formula is C27H44O, HPLC of Formula: 434-16-2.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Hashimoto, Toru; Ishimaru, Toshiya; Shiota, Keisuke; Yamaguchi, Yoshitaka published the artcile< Bottleable NiCl2(dppe) as a catalyst for the Markovnikov-selective hydroboration of styrenes with bis(pinacolato)diboron>, Reference of 403-41-8, the main research area is nickel dppe complex catalyst Markovnikov hydroboration styrene bispinacolatodiboron.

Although transition-metal-catalyzed hydroboration reactions of alkenes have been extensively studied, only three examples using Ni complexes have been reported so far. In this study, we have examined hydroboration reactions of alkenes using Ni/phosphine complexes. The com. available and bottleable complex NiCl2(dppe) (dppe = 1,2-bis(diphenylphosphino)ethane) serves as a catalyst for the highly Markovnikov-selective hydroboration of styrene derivatives that affords the desired Markovnikov products in high yield.

Chemical Communications (Cambridge, United Kingdom) published new progress about Hydroboration catalysts. 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, Reference of 403-41-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts