Tag: M.W=150-200

Chary Devulapally, Yogananda published the artcileRhodium(III)-Catalyzed Dehydrogenative Annulation of 2-Arylindazoles with Cyclic Enones, SDS of cas: 103-26-4, the publication is European Journal of Organic Chemistry (2021), 2021(21), 3083-3090, database is CAplus.

An oxidative annulation of 2-arylindazoles with cyclic enones has was developed using Rh(III)/Cu(OAc)₂ catalytic system for the first time to produce 3,4-dihydroindazolo[2,3-f]phenanthridin-1(2H)-one derivatives in good yields with high selectivity. When AgSbF₆ was used instead of Cu(OAc)₂, the corresponding uncyclized products, 3-(2-(2H-indazol-2-yl)phenyl)cyclohexan-1-one scaffolds were formed exclusively. The reaction proceeds through a sequential conjugate addition of ortho-C-H bond of aryl group followed by an oxidative annulation of indazole ring to generate fused polycyclic scaffolds.

European Journal of Organic Chemistry published new progress about 103-26-4. 103-26-4 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Benzene,Ester,Protease,Tyrosinase,Natural product, name is Methyl 3-phenyl-2-propenoate, and the molecular formula is C10H10O2, SDS of cas: 103-26-4.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Kovsman, E. P. published the artcileAnodic condensation of mixtures of dicarboxylic acid monomethyl esters in methyl alcohol, Synthetic Route of 5205-11-8, the publication is Neftekhimiya (1965), 5(5), 730-7, database is CAplus.

Using the gas-liquid chromatographic method, electrolytic condensation of monomethyl esters of succinic, glutaric, and adipic acids has been investigated during their electrolysis on a Pt electrode (anode) in MeOH solutions The monomethyl ester of succinic acid + the monomethyl ester of glutaric acid give dimethyl esters of adipic, pimelic, and suberic acids by anodic condensation; the monomethyl ester of succinic acid + the monomethyl ester of adipic acid give the dimethyl esters of adipic, suberic, and sebacic acids; the monomethyl ester of glutaric acid + the monomethyl ester of adipic acid give dimethyl esters of suberic, azelaic, and sebacic acids. Optimum conditions for this process were determined (c.d. 10-20 amp./dm.¹, temperature 60°) and some relations of the formation of even products of anodic condensation were found in their dependence on the composition of the electrolyte. 17 references.

Neftekhimiya published new progress about 5205-11-8. 5205-11-8 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Benzene,Ester, name is 3-Methylbut-2-en-1-yl benzoate, and the molecular formula is C12H14O2, Synthetic Route of 5205-11-8.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Annibaletto, Julien published the artcileAmmonium Salts as Convenient Radical Precursors using Iridium Photoredox Catalysis, Category: esters-buliding-blocks, the publication is Organic Letters (2022), 24(23), 4170-4175, database is CAplus and MEDLINE.

Ammonium salts are usually considered as highly challenging to reduce into the corresponding radicals because of the strength of their carbon-nitrogen bond. Here, authors disclose that several ammonium salts can be readily activated using iridium photoredox catalysis to form radicals and illustrate the synthetic utility of this activation of strong C-N bonds with hydrodeamination reactions and radical couplings. Cyclic voltammetry was exploited to rationalize the reactivity observed for the activation of these ammonium salts.

Organic Letters published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, Category: esters-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

van Dort, Hans M. published the artcileNarcissus trevithian and Narcissus geranium: Analysis and synthesis of compounds, Name: 3-Methylbut-2-en-1-yl benzoate, the publication is Journal of Agricultural and Food Chemistry (1993), 41(11), 2063-75, database is CAplus.

The essential oils of two Narcissus varieties, N. trevithian and N.geranium, obtained by extraction of flowers followed by high vacuum distillation of the absolute, were analyzed by GC/MS. After separation in fractions, unknown compounds were isolated by preparative GLC and their structures established by NMR/IR spectroscopy. The synthesis of a number of new compounds, found for the first time in narcissus oil, is described. The two narcissus species are compared with respect to their main components and odor quality. All compounds found so far in narcissus varieties are listed.

Journal of Agricultural and Food Chemistry published new progress about 5205-11-8. 5205-11-8 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Benzene,Ester, name is 3-Methylbut-2-en-1-yl benzoate, and the molecular formula is C6H16OSi, Name: 3-Methylbut-2-en-1-yl benzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Homerin, Germain published the artcilePyroglutamide-Based P2X7 Receptor Antagonists Targeting Inflammatory Bowel Disease, Synthetic Route of 617-52-7, the publication is Journal of Medicinal Chemistry (2020), 63(5), 2074-2094, database is CAplus and MEDLINE.

This report deals with the design, the synthesis, and the pharmacol. evaluation of pyroglutamide-based P2X7 antagonists. A dozen were shown to possess improved properties, among which inhibition of YO-PRO-1/TO-PRO-3 uptake and IL1β release upon BzATP activation of the receptor and dampening signs of DSS-induced colitis on mice, in comparison with reference antagonist GSK1370319A. Docking study and biol. evaluation of synthesized compounds has highlighted new SAR, and low toxicity profiles of pyroglutamides herein described are clues for the finding of a usable h-P2X7 antagonist drug. Such a drug would raise the hope for a cure to many P2X7-dependent pathologies, including inflammatory, neurol., and immune diseases.

Journal of Medicinal Chemistry published new progress about 617-52-7. 617-52-7 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Aliphatic hydrocarbon chain,Ester, name is Dimethyl itaconate, and the molecular formula is C7H10O4, Synthetic Route of 617-52-7.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Matsumoto, Fumio published the artcileVolatile components of Hedychium coronarium Koenig flowers, Computed Properties of 5205-11-8, the publication is Journal of Essential Oil Research (1993), 5(2), 123-33, database is CAplus.

The solvent extract and the headspace of Hedychium coronarium flowers were investigated by GC and GC/MS. A volatile concentrate of the solvent extract which was obtained by simultaneous distillation and extraction (SDE) was fractionated by column chromatog. and analyzed by GC and GC/MS. Of the 175 compounds identified, linalool, Me benzoate, cis-jasmone, eugenol, (E)-isoeugenol, jasmin lactone, Me jasmonate, Me epi-jasmonate, indole, nitriles and oximes were found to make a great contribution to the scent of the flowers. A total of 113 compounds were identified in the headspace. The daily and the seasonal changes of the odor characteristics of H. coronarium flowers were considered. Qual. differences of the volatiles obtained by thermal and solvent desorption of the headspace traps were also discussed.

Journal of Essential Oil Research published new progress about 5205-11-8. 5205-11-8 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Benzene,Ester, name is 3-Methylbut-2-en-1-yl benzoate, and the molecular formula is C12H14O2, Computed Properties of 5205-11-8.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Garrido-Gonzalez, Jose J. published the artcileAn Enzyme Model Which Mimics Chymotrypsin and N-Terminal Hydrolases, SDS of cas: 1877-71-0, the publication is ACS Catalysis (2020), 10(19), 11162-11170, database is CAplus.

Enzymes are the most efficient and specific catalysts to date. Although they have been thoroughly studied for years, building a true enzyme mimic remains a challenging and necessary task. Here, we show how a three-dimensional geometry anal. of the key catalytic residues in natural hydrolases has been exploited to design and synthesize small-mol. artificial enzymes which mimic the active centers of chymotrypsin and N-terminal hydrolases. The optimized prototype catalyzes the methanolysis of the acyl enzyme mimic with a half-life of only 3.7 min at 20 °C, and it is also able to perform the transesterification of vinyl acetate at room temperature DFT studies and X-ray diffraction anal. of the catalyst bound to a transition state analog proves the similarity with the geometry of natural hydrolases.

ACS Catalysis published new progress about 1877-71-0. 1877-71-0 belongs to esters-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Ester, name is 3-(Methoxycarbonyl)benzoic acid, and the molecular formula is C9H8O4, SDS of cas: 1877-71-0.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Sharma, G. V. M. published the artcileA Mild and Highly Selective Deprotective Method of Prenyl Ethers Using Ytterbium Triflate, Quality Control of 5205-11-8, the publication is Journal of Organic Chemistry (1998), 63(24), 9103-9104, database is CAplus.

A study of the deprotection of prenyl ethers with a catalytic amount of Yb(O₃SCF₃)₃ as Lewis acid catalyst is decribed. Thus coumarin I (R = CH₂CH:CMe₂) was treated with catalytic Yb(O₃SCF₃)₃ in MeNO₂ to give I (R = H) in 60% yield.

Journal of Organic Chemistry published new progress about 5205-11-8. 5205-11-8 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Benzene,Ester, name is 3-Methylbut-2-en-1-yl benzoate, and the molecular formula is C7H6N2O2S, Quality Control of 5205-11-8.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Cheshmedzhieva, Diana published the artcileHydrogen bonding probes electron density variations at the basic center in substituted alkyl benzoates: Theory and experiment, Formula: C11H15NO2, the publication is Journal of Physical Organic Chemistry (2021), 34(11), e4258, database is CAplus.

Theor. computations of charge d. parameters are juxtaposed to exptl. spectroscopic shifts induced by hydrogen bonding for a series of 21 substituted in the aromatic ring Et and Me benzoates. Strong correlations between at. charges at the proton accepting atom and the shifts of methanol O-H frequencies are established. Hirshfeld, Charge Model 5 (CM5), and natural population anal. (NPA) at. charges are evaluated using ωB97X-D/6-311++G(3df,2pd) and MP2/6-311++G(3df,2pd) computations. The results obtained reveal the power of hydrogen bond measurements in characterizing the variations of electron densities at the proton accepting center within a series of structurally related mols. The limits of application of the approach are outlined.

Journal of Physical Organic Chemistry published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, Formula: C11H15NO2.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Sohail, Aaqib published the artcileItaconate and derivatives reduce interferon responses and inflammation in influenza A virus infection, Quality Control of 617-52-7, the publication is PLoS Pathogens (2022), 18(1), e1010219, database is CAplus and MEDLINE.

Excessive inflammation is a major cause of morbidity and mortality in many viral infections including influenza. Therefore, there is a need for therapeutic interventions that dampen and redirect inflammatory responses and, ideally, exert antiviral effects. Itaconate is an immunomodulatory metabolite which also reprograms cell metabolism and inflammatory responses when applied exogenously. We evaluated effects of endogenous itaconate and exogenous application of itaconate and its variants dimethyl- and 4-octyl-itaconate (DI, 4OI) on host responses to influenza A virus (IAV). Infection induced expression of ACOD1, the enzyme catalyzing itaconate synthesis, in monocytes and macrophages, which correlated with viral replication and was abrogated by DI and 4OI treatment. In IAV-infected mice, pulmonary inflammation and weight loss were greater in Acod1-/- than in wild-type mice, and DI treatment reduced pulmonary inflammation and mortality. The compounds reversed infection-triggered interferon responses and modulated inflammation in human cells supporting non-productive and productive infection, in peripheral blood mononuclear cells, and in human lung tissue. All three itaconates reduced ROS levels and STAT1 phosphorylation, whereas AKT phosphorylation was reduced by 4OI and DI but increased by itaconate. Single-cell RNA sequencing identified monocytes as the main target of infection and the exclusive source of ACOD1 mRNA in peripheral blood. DI treatment silenced IFN-responses predominantly in monocytes, but also in lymphocytes and natural killer cells. Ectopic synthesis of itaconate in A549 cells, which do not physiol. express ACOD1, reduced infection-driven inflammation, and DI reduced IAV- and IFNγ-induced CXCL10 expression in murine macrophages independent of the presence of endogenous ACOD1. The compounds differed greatly in their effects on cellular gene homeostasis and released cytokines/chemokines, but all three markedly reduced release of the pro-inflammatory chemokines CXCL10 (IP-10) and CCL2 (MCP-1). Viral replication did not increase under treatment despite the dramatically repressed IFN responses. In fact, 4OI strongly inhibited viral transcription in peripheral blood mononuclear cells, and the compounds reduced viral titers (4OI>Ita>DI) in A549 cells whereas viral transcription was unaffected. Taken together, these results reveal itaconates as immunomodulatory and antiviral interventions for influenza virus infection.

PLoS Pathogens published new progress about 617-52-7. 617-52-7 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Aliphatic hydrocarbon chain,Ester, name is Dimethyl itaconate, and the molecular formula is C12H15NO, Quality Control of 617-52-7.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics