Author: tianli

Amanchukwu, Chibueze V. published the artcileA New Class of Ionically Conducting Fluorinated Ether Electrolytes with High Electrochemical Stability, Product Details of C6H6F8O4, the publication is Journal of the American Chemical Society (2020), 142(16), 7393-7403, database is CAplus and MEDLINE.

Increasing battery energy d. is greatly desired for applications such as portable electronics and transportation. However, many next-generation batteries are limited by electrolyte selection because high ionic conductivity and poor electrochem. stability are typically observed in most electrolytes. For example, ether-based electrolytes have high ionic conductivity but are oxidatively unstable above 4 V, which prevents the use of high-voltage cathodes that promise higher energy densities. In contrast, hydrofluoroethers (HFEs) have high oxidative stability but do not dissolve lithium salt. In this work, we synthesize a new class of fluorinated ether electrolytes that combine the oxidative stability of HFEs with the ionic conductivity of ethers in a single compound We show that conductivities of up to 2.7 x 10^-4 S/cm (at 30°C) can be obtained with oxidative stability up to 5.6 V. The compounds also show higher lithium transference numbers compared to typical ethers. Furthermore, we use NMR (NMR) and mol. dynamics (MD) to study their ionic transport behavior and ion solvation environment, resp. Finally, we demonstrate that this new class of electrolytes can be used with a Ni-rich layered cathode (NMC 811) to obtain over 100 cycles at a C/5 rate. The design of new mols. with high ionic conductivity and high electrochem. stability is a novel approach for the rational design of next-generation batteries.

Journal of the American Chemical Society published new progress about 129301-42-4. 129301-42-4 belongs to alcohols-buliding-blocks, auxiliary class Fluoride,Aliphatic hydrocarbon chain,Alcohol,Ether, name is 2,2′-((Perfluoroethane-1,2-diyl)bis(oxy))bis(2,2-difluoroethanol), and the molecular formula is C6H6F8O4, Product Details of C6H6F8O4.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Liu, Juan published the artcileIntegrating disulfides into a polyethylenimine gene carrier selectively boosts significant transfection activity in lung tissue enabling robust IL-12 gene therapy against metastatic lung cancers, Quality Control of 122-20-3, the publication is Materials Science & Engineering, C: Materials for Biological Applications (2021), 112358, database is CAplus and MEDLINE.

Bioreducible polyethylenimines (SSPEIs) are promising non-viral carriers for cancer gene therapy. However, the availability of significant gene transfection activity by SSPEIs remains a challenge. Herein, an essential step was taken to ascertain whether or not the disulfide bonds of SSPEIs play a critical role in promoting significant gene transfection activity in different tissues. Initially, a disulfide-linked linear polyethylenimine (denoted as SSLPEI) consisting of one 5.0 kDa LPEI main chain and three disulfide-linked 5.7 kDa LPEI grafts was designed and prepared to possess similar mol. weight with commercialized 25 kDa LPEI as a pos. control. The SSLPEI could induce superior in vitro transfection activity in different cells to the LPEI control as well as low cytotoxicity. Notably, such enhanced in vitro transfection effect by the SSLPEI was more marked in type-II alveolar epithelial cells compared to different cancer cells. In a Balb/c nude mouse model bearing SKOV-3 tumor, the SSLPEI caused parallel level of transgene expression with the LPEI control in the tumor but significantly higher level in the mouse lung. Furthermore, the SSLPEI and LPEI groups afforded an identical antitumor efficacy against the SKOV-3 tumor via i.v. delivery of a shRNA for silencing VEGF expression in the tumor. However, via i.v. delivery of an interleukin-12 (IL-12) gene into metastatic lung cancers in a C57BL/6 mouse model, the SSLPEI group exerted markedly higher IL-12 expression level in the mouse lung and peripheral blood as compared to the LPEI group, thereby boosting IL-12 immunotherapy against the lung metastasis with longer medium survival time. The results of this work elicit that the disulfide bonds of SSPEIs play a pivotal role in enhancing gene transfection activity selectively in the lung tissue rather than solid tumor, enabling high translational potential of SSPEIs for non-viral gene therapy against metastatic lung cancers.

Materials Science & Engineering, C: Materials for Biological Applications published new progress about 122-20-3. 122-20-3 belongs to alcohols-buliding-blocks, auxiliary class Organic Pigment, name is Triisopropanolamine, and the molecular formula is C9H21NO3, Quality Control of 122-20-3.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Jin, Yuanyuan published the artcileThe combination of C-Myc rearrangement and 1q21 gain is associated with poor prognosis in multiple myeloma, Name: 2-((4-(4-Bromophenylsulfonamido)-1-hydroxynaphthalen-2-yl)thio)acetic acid, the publication is Annals of Hematology (2021), 100(5), 1251-1260, database is CAplus and MEDLINE.

The prognostic value of chromosomal 1q21 gain in newly diagnosed multiple myeloma (NDMM) remains controversial. Add-on Myc aberrations may further worsen the outcome. To investigate whether specific genes located at the 1q21 region, such as myeloid cell leukemia 1 (Mcl-1), are involved in NDMM progression, we examined bone marrow cytogenetic abnormalities in 153 patients with NDMM by fluorescence in situ hybridization. Their response to treatment and survival was also analyzed. C-Myc and Mcl-1 expressions in bone marrow samples were analyzed by RT-PCR. The expression of Mcl-1 was evaluated in bone marrow sections by immunohistochem. MM cell lines were transfected with Mcl-1 siRNA. 1q21 gain was present in 55/153 (35.9%) patients and strongly associated with Myc rearrangement (31/153, 20.3%, P = 0.004). A pos. correlation was observed between Myc and Mcl-1 mRNA levels in bone marrow cells from 47 patients (r = 0.57, P < 0.001). The combination of 1q21 gain and Myc rearrangement was associated with poorer overall survival than Myc rearrangement alone (16.8 vs. 27.9 mo, P = 0.077) or 1q21 gain alone (16.8 vs. 60.7 mo, P < 0.01). High Mcl-1 protein expression in bone marrow plasma cells was associated with Myc rearrangement. Mcl-1 silencing by siRNA inhibited Myc protein expression in three myeloma cell lines. Treatment with the small-mol. Mcl-1 inhibitor, UMI-77, produced similar results. Overall, the combination of Myc rearrangement and 1q21 gain was associated with particularly poor prognosis in patients with MM. Furthermore, our data are consistent with Mcl-1-dependent Myc protein activation.

Annals of Hematology published new progress about 518303-20-3. 518303-20-3 belongs to alcohols-buliding-blocks, auxiliary class Apoptosis,Bcl-2, name is 2-((4-(4-Bromophenylsulfonamido)-1-hydroxynaphthalen-2-yl)thio)acetic acid, and the molecular formula is C18H14BrNO5S2, Name: 2-((4-(4-Bromophenylsulfonamido)-1-hydroxynaphthalen-2-yl)thio)acetic acid.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Wang, Junwu published the artcileEfficacy of high-dose ambroxol for paraquat poisoning: a meta-analysis of randomized controlled trials, Category: alcohols-buliding-blocks, the publication is Journal of Research in Medical Sciences (2020), 25(7), 67, database is CAplus and MEDLINE.

Background: Paraquat (PQ) poisoning is characterized by rapidly progressive acute poisoning with high mortality and no specific antidote. Although some clin. studies have been conducted to investigate the benefits of high-dose ambroxol as an adjuvant treatment for PQ poisoning, the efficacy is controversial. Materials and Methods: After searching for relevant articles in English and Chinese databases from 1978 to 2019 according to the keywords (paraquat poisoning/methy viologen/gramoxone, and ambroxol/mucosolvan/Bromhexine), we found seven articles that met our inclusion and exclusion criteria. A meta-anal. was performed using fixed-effects model and random-effects model according to the I2 value in Stata software (version 15.0). Four outcome indicators (hospital mortality, partial pressure of oxygen (PaO2), oxygenation index (PaO2/FiO2), and survival time of the deceased patients) were of interest to us. Results: The meta-anal. showed that adjuvant treatment with high doses of ambroxol increased PaO 2 (weighted mean difference [WMD] = 13.73 [mmHg], 95% confidence interval [CI]: 8.68-18.79, Z = 11.80, P < 0.001), PaO 2/FiO2 (WMD = 38.81 [mmHg], 95% CI: 29.85-47.76, Z = 8.49, P = 0.000), and survival time of the deceased patients (WMD = 2.58 [d], 95% CI: 0.97-4.18, Z = 3.15, P = 0.002) compared with usual treatment. Treatment with high doses of ambroxol also appeared to reduce the hospital mortality (relative risk = 0.69, 95% CI: 0.55-0.86, Z = 3.25, P = 0.001). Conclusion: This study found that high-dose ambroxol is an effective therapy for PQ poisoning and may reduce the in-hospital mortality.

Journal of Research in Medical Sciences published new progress about 23828-92-4. 23828-92-4 belongs to alcohols-buliding-blocks, auxiliary class Membrane Transporter/Ion Channel,Sodium Channel, name is trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride, and the molecular formula is C8H6ClN, Category: alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Shi, Yao published the artcileComputational Chemistry-Assisted Highly Selective Radical Cascade Cyclization of 1,6-Enynes with Thiols: Access to Sulfur-Substituted 4-Enyl-2-Pyrrolidones, Quality Control of 4410-99-5, the publication is Journal of Organic Chemistry (2022), 87(15), 9479-9487, database is CAplus and MEDLINE.

In this study, an efficient method for the synthesis of sulfur-substituted 4-enyl-2-pyrrolidones I (R¹ = H, 2-Me, 2-Br, 3-Cl, etc.; R² = H, 4-Me; R³ = 4-methylphenyl, (2-chlorophenyl)methyl, furan-2-ylmethyl, etc.) was successfully developed through AIBN-promoted highly selective 5-exo-dig radical cascade cyclization of 1,6-enynes II with sulfur R³SH sources with the aid of theor. and computational chem. This protocol enables the first practical and green synthesis of an array of 4-enyl-2-pyrrolidones I in moderate-to-good yields with broad substrate scopes and high regioselectivities (>20:1). Moreover, excellent stereoselectivities have also been achieved (up to >20:1, Z/E). Most interestingly, when the sulfur source is electron-rich thiophenol, reverse stereoselectivities were discovered. In addition, the control experiments indicate that the cascade cyclization is realized by radical reactions, and the detailed reaction mechanism and regioselectivities have also been explained by theor. studies.

Journal of Organic Chemistry published new progress about 4410-99-5. 4410-99-5 belongs to alcohols-buliding-blocks, auxiliary class Thiol,Benzene, name is 2-Phenylethanethiol, and the molecular formula is C17H14F3N3O2S, Quality Control of 4410-99-5.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Zhou, Xukai published the artcileSite-Specific and Degree-Controlled Alkyl Deuteration via Cu-Catalyzed Redox-Neutral Deacylation, Category: alcohols-buliding-blocks, the publication is Journal of the American Chemical Society (2022), 144(22), 9570-9575, database is CAplus and MEDLINE.

A Cu-catalyzed degree-controlled deacylative deuteration of diverse alkyl groups with the methylketone (acetyl) moiety as a traceless activating group was reported. The use of N-methylpicolino-hydrazonamide (MPHA) promotes efficient aromatization-driven C-C cleavage. Mono-, di-, and trideuteration at specific sites was selectively achieved. The reaction is redox-neutral with broad functional group tolerance. The utility of this method was demonstrated in forming a complete set of deuterated Et groups, merging with the Diels-Alder reaction, a net devinylative deuteration, and the synthesis of the d₂-analog of Austedo.

Journal of the American Chemical Society published new progress about 20880-92-6. 20880-92-6 belongs to alcohols-buliding-blocks, auxiliary class Other Aliphatic Heterocyclic,Chiral,Alcohol, name is ((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4′,5′-d]pyran-3a-yl)methanol, and the molecular formula is C14H12O3S, Category: alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Torres, Nazareth published the artcileShifts in the phenolic composition and aromatic profiles of Cabernet Sauvignon (Vitis vinifera L.) wines are driven by different irrigation amounts in a hot climate, Application In Synthesis of 106-25-2, the publication is Food Chemistry (2022), 131163, database is CAplus and MEDLINE.

Wine final color, taste and aroma are closely related to the accumulation of secondary metabolites that may be affected by deficit irrigation applied in viticulture. A two-year study was conducted to assess the different fractions of crop evapotranspiration (ET_c) irrigation replacement on wine composition, addressing the anal. of flavonoids and volatiles under context of global warming. Irrigating with 100% ET_c (full grapevine demand) enhanced wine hue, antioxidant capacity, and some aromas; however, it came with a diminution of flavonoids and a less stable flavonoid profile. Replacing 25 and 50% ET_c in wine grape improved wine color intensity, concentration of flavonoids, and shifted the aromatic profiles. These treatments increased some terpenes and esters which may enhance the desirable aromas for Cabernet Sauvignon, and decreased C6 alcs. related to unpleasant ones. Therefore, despite the warming trends in Mediterranean climates, 100% ET_c irrigation would be not advisable to improve or maintain wine quality, and 50% ET_c was sufficient.

Food Chemistry published new progress about 106-25-2. 106-25-2 belongs to alcohols-buliding-blocks, auxiliary class Natural product, name is cis-3,7-Dimethyl-2,6-Octadien-1-Ol, and the molecular formula is C18H34N4O5S, Application In Synthesis of 106-25-2.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Zhang, Yang-Hui published the artcilePd(II)-catalyzed hydroxylation of arenes with 1 atm of O₂ or air, Application In Synthesis of 328-90-5, the publication is Journal of the American Chemical Society (2009), 131(41), 14654-14655, database is CAplus and MEDLINE.

Pd(II)-catalyzed ortho-hydroxylation of variously substituted benzoic acids under 1 atm of O₂ or air is achieved under nonacidic conditions. Extensive labeling studies support a direct oxygenation of aryl C-H bonds with mol. oxygen.

Journal of the American Chemical Society published new progress about 328-90-5. 328-90-5 belongs to alcohols-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Carboxylic acid,Benzene,Phenol, name is 2-Hydroxy-4-(trifluoromethyl)benzoic acid, and the molecular formula is C5H10O, Application In Synthesis of 328-90-5.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Jiao, Song published the artcileCore element characterization of Rhodococcus promoters and development of a promoter-RBS mini-pool with different activity levels for efficient gene expression, Application of Triisopropanolamine, the publication is New Biotechnology (2018), 41-49, database is CAplus and MEDLINE.

To satisfy the urgent demand for promoter engineering that can accurately regulate the metabolic circuits and expression of specific genes in the Rhodococcus microbial platform, a promoter-ribosome binding site (RBS) coupled mini-pool with fine-tuning of different activity levels was successfully established. Transcriptome analyses of R. ruber TH revealed several representative promoters with different activity levels, e.g., Pami, Pcs, Pnh, P50sl36, PcbiM, PgroE and Pniami. β-Galactosidase (LacZ) reporter measurement demonstrated that different gene expression levels could be obtained with these natural promoters combined with an optimal RBS of ami. Further use of these promoters to overexpress the nitrile hydratase (NHase) gene with RBSami in R. ruber THdAdN produced different expression levels consistent with the transcription analyses. The -35 and -10 core elements of different promoters were further analyzed, and the conserved sequences were revealed to be TTGNNN and (T/C)GNNA(A/C)AAT. By mutating the core elements of the strong promoters, Pnh and Pami, into the above consensus sequence, two even stronger promoters, PnhM and PamiM, were obtained with 2.2-fold and 7.7-fold improvements in transcription, resp.

New Biotechnology published new progress about 122-20-3. 122-20-3 belongs to alcohols-buliding-blocks, auxiliary class Organic Pigment, name is Triisopropanolamine, and the molecular formula is C9H21NO3, Application of Triisopropanolamine.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Jung, Heesun published the artcileCpG oligonucleotide and α-D-mannose conjugate for efficient delivery into macrophages, Application of (2R,3S,4S,5S,6R)-2-(Hydroxymethyl)-6-(4-isothiocyanatophenoxy)tetrahydro-2H-pyran-3,4,5-triol, the publication is Applied Biological Chemistry (2016), 59(5), 759-763, database is CAplus.

For improved intracellular uptake of CpG ODN into macrophages, we developed CpG ODN and mannose conjugate (CpG-Man conjugate) via simple conjugation of α-D-mannose to CpG ODN. CpG-Man conjugate showed greatly enhanced intracellular uptake by 2.1-fold into macrophages, compared to CpG ODN in a TLR-9 receptor-specific manner. In addition, internalized CpG-Man conjugate successfully triggered TNF-α release in macrophages. Taken together, the CpG-Man conjugate can serve as the promising delivery systems of CpG ODN into immune cells as a candidate adjuvant.

Applied Biological Chemistry published new progress about 96345-79-8. 96345-79-8 belongs to alcohols-buliding-blocks, auxiliary class Sugar Units,Gal and Man, name is (2R,3S,4S,5S,6R)-2-(Hydroxymethyl)-6-(4-isothiocyanatophenoxy)tetrahydro-2H-pyran-3,4,5-triol, and the molecular formula is C13H15NO6S, Application of (2R,3S,4S,5S,6R)-2-(Hydroxymethyl)-6-(4-isothiocyanatophenoxy)tetrahydro-2H-pyran-3,4,5-triol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts