Category: esters-buliding-blocks

Ciampi, Ethel published the artcileSafety and humoral response rate of inactivated and mRNA vaccines against SARS-CoV-2 in patients with Multiple Sclerosis, COA of Formula: C6H8O4, the publication is Multiple Sclerosis and Related Disorders (2022), 103690, database is CAplus and MEDLINE.

Safety and effectiveness outcomes in Multiple Sclerosis (MS) patients receiving different disease-modifying therapies (DMT) and different types of vaccines against SARS-CoV-2 are limited. Growing evidence coming mainly from Israel, Europe and North America using mRNA and adenoviral vector vaccines has been published. To assess the safety and humoral response of inactivated virus and mRNA vaccines against SARS-CoV-2 in patients with MS. Ongoing, multicentric, prospective, observational study performed between Feb. and Sept. 2021. Humoral response (antibodies against spike-1 protein) was determined at least 4 wk after the complete schedule of anti-SARS-CoV-2 vaccines. Categorical outcome (pos./neg.) and total antibody titers were recorded. Adverse events supposedly attributable to vaccination (AESAV) were collected. 178 Patients, 68% women, mean age 39.7 ± 11.2 years, 123 received inactivated (Coronavac-Sinovac), 51 mRNA (Pfizer-BioNtech), and 4 adenoviral vector vaccines (CanSino n = 2, Jonhson&Johnson-Jannsen n = 1, Oxford-AstraZeneca n = 1). Six patients had a history of COVID-19 before vaccination. Overall humoral response was observed in 66.9% (62.6% inactivated vs. 78.4% mRNA, p = 0.04). Pos. anti-S1-antibodies were observed in 100% of patients with no DMT (n = 3), 100% with interferon/glatiramer-acetate (n = 11), 100% with teriflunomide/dimethyl-fumarate (n = 16), 100% with natalizumab (n = 10), 100% with alemtuzumab (n = 8), 90% with cladribine (n = 10), and 88% with fingolimod (n = 17), while 43% of patients receiving antiCD20 (n = 99) were pos. (38% inactivated vaccine vs. 59% mRNA vaccine, p = 0.05). In the multivariate anal. including antiCD20 patients, the predictors for a pos. humoral response were receiving the mRNA vaccine (OR 8.11 (1.79-36.8), p = 0.007) and a lower number of total infusions (OR 0.44 (0.27-0.74) p = 0.002). The most frequent AESAV was local pain (14%), with 4 (2.2%) patients experiencing mild-moderate relapses within 8 wk of first vaccination compared to 11 relapses (6.2%) within the 8 wk before vaccination (Chi-squared 3.41, p = 0.06). A higher humoral response rate was observed using the mRNA compared to the inactivated vaccine, while patients using antiCD20 had a significantly lower response rate, and patients using antiCD20 and fingolimod had lower antibody titers. In this MS patient cohort, inactivated and mRNA vaccines against SARS-CoV-2 appear to be safe, with no increase in relapse rate. This information may help guidelines including booster shots and types of vaccines in selected populations.

Multiple Sclerosis and Related Disorders published new progress about 624-49-7. 624-49-7 belongs to esters-buliding-blocks, auxiliary class Inhibitor,Natural product, name is Dimethyl fumarate, and the molecular formula is C6H8O4, COA of Formula: C6H8O4.

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

Farhat, Hafiza published the artcileEvaluation of nematicidal potential of endophytic fungi associated with healthy plants and GC-MS profiling of metabolites of endophytic Fusarium solani, Recommanded Product: Isobutyl palmitate, the publication is South African Journal of Botany (2022), 146-161, database is CAplus.

Endophytic fungi are now recognized as an excellent source of widely occurring natural products. Fungi are wonderful producers of natural products, mostly secondary metabolites. The vital use of these fungi may provide benefit to current demand for novel biomols. in agriculture, medical and pharmaceutical industries. In this study, endophytic fungi Aspergillus terreus, Cephalosporium sp., Chaetomium sp., Curvularia lunata, Curvularia hawaiiensis, Macrophomina phaseolina, Fusarium solani, Talaromyces assiutensis and Talaromyces trachyspermus isolated from healthy plants and evaluated for nematicidal activity against Meloidogyne javanica, a root-knot nematode. In vitro culture filtrates of these fungi showed strong nematicidal activity by killing juveniles of nematode to varying degree, where F.solani caused 100% mortality after 48 h. n- Hexane fraction of culture filtrate and n-hexane extract of mycelium of F. solani were subjected to GC-MS anal., resulted in the identification of several compounds and some are not reported before from this fungus. Metabolites from endophytic F. solani could be used in the development of antimicrobial agents that can be used in medicine or agrochems. The use of fungal based products offers a unique opportunity to discover novel therapeutic agents to combat various infectious agents and agricultural pests.

South African Journal of Botany published new progress about 110-34-9. 110-34-9 belongs to esters-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Ester, name is Isobutyl palmitate, and the molecular formula is C20H40O2, Recommanded Product: Isobutyl palmitate.

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

Hattori, Hideshi published the artcileSynthesis and properties of photochromic liquid-crystalline polyacrylates containing a spirooxazine group, SDS of cas: 50670-76-3, the publication is Journal of Polymer Science, Part A: Polymer Chemistry (1999), 37(17), 3513-3522, database is CAplus.

The novel photochromic liquid-crystalline polyacrylates containing a spirooxazine group were synthesized. The photochromic polymer containing (4-pentamethyleneoxy)biphenylene moiety at the 5-position of spironaphthoxazine showed nematic phase from 122.9 to 133.8°C. The photochromic polymer containing undecamethylene instead of pentamethylene showed smectic phase from 93.1 to 169.7°. On the other hand, the photochromic polymer containing both undecamethylene as a spacer and spironaphthoxazine-bound biphenylene moiety at 9′-position did not show any liquid crystallinity. All spirooxazine-containing liquid-crystalline polymers showed photochromism in the solid state at room temperature Because the shape of the absorption spectra of the photochromic quenched liquid-crystalline polymer films was almost the same as those of the photochromic amorphous polymer films, the photochromic properties did not depend on the mesophase in the polymers examined

Journal of Polymer Science, Part A: Polymer Chemistry published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, SDS of cas: 50670-76-3.

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

Hattori, Hideshi published the artcileSynthesis and characterization of polymerizable photochromic liquid crystals containing a spiro-oxazine group, Category: esters-buliding-blocks, the publication is Liquid Crystals (1999), 26(7), 1085-1095, database is CAplus.

Novel polymerizable photochromic liquid crystal materials containing either the 1,3-dihydro-1,3,3-trimethylspiro[2H-indole-2,3′-[3H]naphth[2,1-b][1,4]oxazine] group or the 1,3-dihydro-1,3,3-trimethylspiro[2H-indole-2,3′-[3H]pyrido[3,2-f][1,4]benzoxazine] group as the photochromic moiety, and the biphenylene unit as the mesogenic moiety, were synthesized. Thermal and phys. properties of the compounds were examined using DSC, optical polarizing microscopy, wide-angle x-ray diffractometry and UV-visible spectrophotometry. The photochromic compounds containing both photochromic and mesogenic moieties showed metastable mesophases; these tended to crystallize with time and on heating. The crystallization behaviors were strongly dependent on the structure of the terminal group of alkylene spacer and the position of the spiro-oxazine bound to the mesogen.

Liquid Crystals published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, Category: esters-buliding-blocks.

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

Giannoccaro, Maria Pia published the artcileDifference in safety and humoral response to mRNA SARS-CoV-2 vaccines in patients with autoimmune neurological disorders: the ANCOVAX study, Product Details of C6H8O4, the publication is Journal of Neurology (2022), 269(8), 4000-4012, database is CAplus and MEDLINE.

Assessing the safety of SARS-CoV-2 mRNA vaccines and the effect of immunotherapies on the seroconversion rate in patients with autoimmune neurol. conditions (ANC) is relevant to clin. practice. Our aim was to assess the antibody response to and safety of SARS-CoV-2 mRNA vaccines in ANC. This longitudinal study included ANC patients vaccinated with two doses of BNT162b2 or mRNA-1273 between March and August 2021. Side effects were assessed 2-10 days after each dose. Neurol. status and anti-spike receptor binding domain antibody levels were evaluated before vaccination and 4 wk after the second dose. Healthcare-workers served as controls for antibody levels. We included 300 ANC patients (median age 52, IQR 40-65), and 347 healthcare-workers (median age 45, IQR 34-54). mRNA-1273 vaccine was associated with an increased risk of both local (OR 2.52 95% CI 1.45-4.39, p = 0.001) and systemic reactions (OR 2.51% CI 1.49-4.23, p = 0.001). The incidence of relapse was not different before and after vaccine (Incidence rate ratio 0.72, 95% CI 0.29-1.83). Anti-SARS-CoV-2 IgG were detected in 268 (89.9%) patients and in all controls (p < 0.0001). BNT162b2 vaccine (OR 8.84 95% CI 2.32-33.65, p = 0.001), anti-CD20 mAb (OR 0.004 95% CI 0.0007-0.026, p < 0.0001) and fingolimod (OR 0.036 95% CI 0.002-0.628, p = 0·023) were associated with an increased risk of not developing anti-SARS-CoV-2 IgG. SARS-CoV-2 mRNA vaccines were safe in a large group of ANC patients. Anti-CD20 and fingolimod treatment, as well as vaccination with the BNT162b2 vaccine, led to a reduced humoral response. These findings could inform vaccine policies in ANC patients undergoing immunotherapy.

Journal of Neurology published new progress about 624-49-7. 624-49-7 belongs to esters-buliding-blocks, auxiliary class Inhibitor,Natural product, name is Dimethyl fumarate, and the molecular formula is C6H8O4, Product Details of C6H8O4.

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

Grichanov, I. published the artcileAttractivity of some synthetic compounds for male gray grain moth [Apamea anceps]., Application of (Z)-Dodec-9-en-1-yl acetate, the publication is Eesti NSV Teaduste Akadeemia Toimetised, Bioloogia (1989), 38(3), 185-8, database is CAplus.

Twenty-eight synthetic compounds of the formula H₃C-(CH₂)_n-CH=CH-(CH₂)_m-Y (where Y = OAc, CHO, or OH; m = 4, 6, 7, 8, or 10; and n = 1, 3, 5, or 7; double bond had cis or trans configuration) were tested for ability to attract male gray grain moth (A. anceps). Only cis-11-hexadecenal was attractive for this species, and its specificity was 93-100%.

Eesti NSV Teaduste Akadeemia Toimetised, Bioloogia published new progress about 16974-11-1. 16974-11-1 belongs to esters-buliding-blocks, auxiliary class Aliphatic Chain, name is (Z)-Dodec-9-en-1-yl acetate, and the molecular formula is C14H26O2, Application of (Z)-Dodec-9-en-1-yl acetate.

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

Tekeste, Teame published the artcileModeling Zinc Enzyme Inhibition with Functional Thiolate Ligands, Safety of Ethyl 2-mercaptopropanoate, the publication is Inorganic Chemistry (2006), 45(26), 10799-10806, database is CAplus and MEDLINE.

The blocking of zinc enzymes by thiolate-containing inhibitors was modeled by treating Tp^Ph,MeZn-OH with functional thiols. The latter were chosen such that they contain an addnl. donor function (COOH, COOR, NH₂, NHR, OH) in a position favorable for chelation. Of them, mercapto carboxylic acid esters were incorporated as thiolates. The corresponding mercapto carboxylic acids, however, used only their carboxylate function for coordination. Various mercapto amines, mercapto alcs., and mercaptophenol were exclusively converted to thiolate ligands. The two modes of inhibitor attachment, terminal or chelating, were observed equally frequently. As a rule, they occur as alternatives for similar ligands. In case of 2-mercaptophenol they coexist in the crystalline state and in solution Hydrogen bonding, both intra- and intermol., seems to be a decisive factor determining the inhibitor attachments. Its persistence in solution is underlined by the observation that Tp^Ph,MeZn-hydroxythiophenolates are methylated about 2 orders of magnitude slower than Tp^Ph,MeZn-SPh itself.

Inorganic Chemistry published new progress about 19788-49-9. 19788-49-9 belongs to esters-buliding-blocks, auxiliary class Thiol,Aliphatic hydrocarbon chain,Ester, name is Ethyl 2-mercaptopropanoate, and the molecular formula is C11H10O, Safety of Ethyl 2-mercaptopropanoate.

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

Selvakumar, Kumaravel published the artcileCatalytic and Structural Studies on Complexes of a Binaphthyl-Phosphino-Oxazoline Auxiliary: The Meta Dialkyl Effect on Enantioselectivity, Quality Control of 126613-06-7, the publication is Organometallics (2000), 19(7), 1299-1307, database is CAplus.

The chiral phosphino-oxazoline ligand (S,R)-2-(4,5-dihydro-4-isopropyloxazol-2-yl)-2′-bis(3,5-dimethylphenyl)phosphino-1,1′-binaphthyl, 6b, its Pd-dichloro complex, 9, the p-cyanoaryl complex [PdBr(p-NCC₆H₄)(6b)], 10, a model for the Heck reaction, the cationic 1,3-diphenylallyl derivative [Pd(η³-PhCHCHCHPh)(6b)]OTf, 11, a model for the allylic allylation, and the Rh- and Ir-1,5-COD compounds [M(1,5-COD)(6b)]BF₄, 12 and 13, resp., were prepared In enantioselective Heck arylation and allylic allylation catalytic experiments, the presence of the 3,5-dimethylphenyl groups generally increases the observed ee. The solid-state structure of PdCl₂(6b), 9, was determined 2-Dimensional and variable-temperature NMR experiments suggest that one of the two 3,5-di-Me P-aryl rings interacts selectively with the remaining ligands. Consequently, the entire chiral pocket becomes slightly more rigid and the correlation with substrate improves.

Organometallics published new progress about 126613-06-7. 126613-06-7 belongs to esters-buliding-blocks, auxiliary class Chiral Diphenols, name is (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate), and the molecular formula is C10H10O2, Quality Control of 126613-06-7.

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

Reid, Tony published the artcilePhase II trial of the histone deacetylase inhibitor pivaloyloxymethyl butyrate (Pivanex, AN-9) in advanced non-small cell lung cancer., Computed Properties of 122110-53-6, the publication is Lung cancer (Amsterdam, Netherlands) (2004), 45(3), 381-6, database is MEDLINE.

This multicenter phase II trial evaluated the therapeutic activity and safety profile of pivaloyloxymethyl butyrate (Pivanex, AN-9) as a single agent in refractory non-small cell lung cancer (NSCLC). Pivanex (2.34 g/m2 per day) was administered as a 6-h continuous intravenous infusion, daily for 3 days, and repeated every 21 days until disease progression. Forty-seven patients were treated. More than 90% of patients had received both a platinum compound and a taxane and 32% had received three or more prior chemotherapy regimens. The most common toxicities were transient grade 1-2 fatigue (34%), nausea (17%), and dysgeusia (11%). Three patients had partial responses (6.4 and 95%; CI 1.4-18.7%) and 14 patients had stable disease for > or =12 weeks (30%). Median survival for all patients was 6.2 months with 1-year survival of 26%. For patients who received fewer than three prior chemotherapy regimens, median survival was 7.8 months and 1-year survival was 31%. Pivanex is well tolerated and appears to be active as a single agent in patients with advanced NSCLC refractory to previous chemotherapy. Based on its therapeutic activity and favorable safety profile, further studies of Pivanex in NSCLC, particularly in combination with current chemotherapeutic agents, are warranted.

Lung cancer (Amsterdam, Netherlands) published new progress about 122110-53-6. 122110-53-6 belongs to esters-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Ester,Inhibitor, name is (Pivaloyloxy)methyl butyrate, and the molecular formula is C10H18O4, Computed Properties of 122110-53-6.

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

Tsukamoto, Takamasa published the artcileHighly Accurate Synthesis of Quasi-sub-nanoparticles by Dendron-assembled Supramolecular Templates, Formula: C15H14O3, the publication is Angewandte Chemie, International Edition (2022), 61(8), e202114353, database is CAplus and MEDLINE.

Quasi-sub-nanomaterials (1-3 nm) have been predicted to exhibit unique properties originating from the gray structures considered both bulk solids and mols., while their synthesis is extremely difficult. The present study describes a new template synthesis method for quasi-sub-nanosized materials using a combination of coordination chem. and polymer chem. Utilizing self-assembly of guest basic phenylazomethine dendron units onto host acidic core units with six tritylium cations, the dendron-assembled supramols. were constructed easily and quant. without costly techniques. This huge supramol. capsule accumulating multiple acidic rhodium salts in its basic ligands enabled a precise synthesis of rhodium particles via formation of multinuclear complexes. The obtained particles (Rh₈₄, â‰?.5 nm) have particle sizes within 1-3 nm range and were larger than conventional sub-nanoparticles (Rh₁₄, âˆ?.85 nm), therefore the precise template synthesis of quasi-sub-nanoparticles was successfully demonstrated.

Angewandte Chemie, International Edition published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C12H6NNaO4, Formula: C15H14O3.

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