Author: tianli

Yu, Qian published the artcileSynthesis, cytotoxicity and structure-activity relationship of indolizinoquinolinedione derivatives as DNA topoisomerase IB catalytic inhibitors, Category: alcohols-buliding-blocks, the publication is European Journal of Medicinal Chemistry (2018), 195-207, database is CAplus and MEDLINE.

A series of indolizinoquinolinedione derivatives I [X₁ = N; X₂ = X₃ = X₄ = CH; n = 2, 3; R¹ = H, F, Cl; R² = NMe₂, pyrrolidinyl, piperidinyl, morpholinyl, 4-methylpiperazinyl] and II [R3 = NMe₂, pyrrolidinyl, piperidinyl, morpholinyl] was synthesized. TOP1-mediated relaxation, nicking and unwinding assays revealed that three fluorinated derivatives I [X₁ = N; X₂ = X₃ = X₄ = CH; n = 2, 3; R¹ = F; R² = pyrrolidinyl, piperidinyl] and one N,N-trans derivative I [X₁ = X₂ = X₃ = CH; X₄ = N; n = 2; R² = morpholinyl] act as TOP1 catalytic inhibitors with higher TOP1 inhibition (++++) than camptothecin (+++) and without TOP1-mediated unwinding effect. MTT assay against five human cancer cell lines indicated that the highest cytotoxicity was II [R³ = piperidinyl] for CCRF-CEM cells, I [X₁ = N; X₂ = X₃ = X₄ = CH; n = 3; R¹ = F; R² = NMe2] for A549 and DU-145 cells, I [X₁ = N; X₂ = X₃ = X₄ = CH; n = 2; R¹ = F; R² = pyrrolidinyl] for HCT116 cells, and I [X₁ = N; X₂ = X₃ = X₄ = CH; n = 3; R¹ = F; R² = 4-methylpiperazinyl] for Huh7 cells with GI₅₀ values at nanomolar range. The drug-resistant cell assay indicated that compound I [X₁ = N; X₂ = X₃ = X₄ = CH; n = 2; R¹ = F; R² = pyrrolidinyl] may mainly act to TOP1 in cells and was less of Pgp substrates. Flow cytometric anal. showed that compounds I [X₁ = N; X₂ = X₃ = X₄ = CH; n = 2, 3; R¹ = F; R² = pyrrolidinyl, piperidinyl] could obviously induce apoptosis of HCT116 cells. Moreover, the structure-activity relationship (SAR) of indolizinoquinolinedione derivatives was analyzed.

European Journal of Medicinal Chemistry published new progress about 622-40-2. 622-40-2 belongs to alcohols-buliding-blocks, auxiliary class Morpholine,Alcohol, name is 2-Morpholinoethanol, and the molecular formula is C20H21ClN4O4, Category: alcohols-buliding-blocks.

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

Du, Lijuan published the artcileAICAr suppresses cell proliferation by inducing NTP and dNTP pool imbalances in acute lymphoblastic leukemia cells, Category: alcohols-buliding-blocks, the publication is FASEB Journal (2019), 33(3), 4525-4537, database is CAplus and MEDLINE.

Here, we knocked out TP53 or PRKAA1 gene (encoding AMPKa1) in NALM-6 and Reh cells by using the clustered regularly interspaced short palindromic repeats/Cas9 system and found that AICAr-induced proliferation inhibition was independent of AMPK activation but dependent on p53. Liquid chromatog.-mass spectrometry anal. of nucleotide metabolites indicated that AICAr caused an increase in ATP, deoxyadenosine triphosphate, and deoxyguanosine triphosphate levels by up-regulating purine biosynthesis, while AICAr led to a decrease in cytidine triphosphate, uridine triphosphate, deoxycytidine triphosphate, and deoxythymidine triphosphate levels because of reduced phosphoribosyl pyrophosphate production, which consequently impaired the pyrimidine biosynthesis. Ribonucleoside triphosphate (NTP) pool imbalances suppressed the rRNA transcription efficiency. Furthermore, deoxy-ribonucleoside triphosphate (dNTP) pool imbalances induced DNA replication stress and DNA double-strand breaks, followed by cell cycle arrest and apoptosis in ALL cells. Exogenous uridine could rebalance the NTP and dNTP pools by supplementing pyrimidine and then attenuate AICAr-induced cytotoxicity. Our data indicate that RNA transcription inhibition and DNA replication stress induced by NTP and dNTP pool imbalances might play a key role in AICAr-mediated cytotoxic effects on ALL cells, suggesting a potential clin. application of AICAr in future ALL therapy.

FASEB Journal 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, Category: alcohols-buliding-blocks.

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

Yang, N. C. published the artcilePhotochemical reactions of ketones in solution, Formula: C5H10O, the publication is Journal of the American Chemical Society (1958), 2913-14, database is CAplus.

The light-induced reactions of simple aliphatic ketones in saturated hydrocarbons were studied. Ketones with no γ-H atom gave the corresponding alc. and the addition product with the hydrocarbon. Ketones with γ-H atoms gave Me₂CO, an olefin, and a cyclobutanol derivative These reactions differ markedly from those previously observed in the gas phase. The formation of cyclobutanols offers a route to a group of compounds otherwise difficult to prepare A 1:8 mixture of Me₂CO and cyclohexane (I) irradiated in quartz yielded a small amount of CH₄ and CO. Fractional distillation and gas chromatography yielded Me₂CHOH 53, pinacol 15, MeCOCH₂COMe 8, and cyclohexyldimethylcarbinol 12%; cyclohexylcyclohexene and hydrocarbon polymers were also obtained. The recovered I showed slight unsaturation Similarly, irradiation of 2-pentanone in I gave Me₂CO, C₂H₄, and 1-methylcyclobutanol (phenylurethan m.p. 141°). Irradiation of 2-octanone in isoöctane gave equimol. amounts of Me₂CO and CH₂:CHPr (67%), and 17% 1-methyl-2-propylcyclobutanol b₉ 67-8°, n_D²⁰ 1.4420, phenylurethan m. 78deg;. Irradiation of 2-nonanone in isoöctane yielded Me₂CO, 1-hexene, and 1-methyl-2-butylcyclobutanol, b_0.8 49-50°, n_D²⁰ 1.4441, phenylurethan m.p. 91°. An intramol, mechanism is formulated for the formation of cyclobutanols.

Journal of the American Chemical Society published new progress about 20117-47-9. 20117-47-9 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic cyclic hydrocarbon,Alcohol, name is 1-Methylcyclobutan-1-ol, and the molecular formula is C8H8O2, Formula: C5H10O.

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

Liang, Jun published the artcileSingle and mixed effects of prenatal exposure to multiple bisphenols on hemoglobin levels and the risk of anemia in pregnant women, Formula: C12H10O4S, the publication is Environmental Research (2022), 112625, database is CAplus and MEDLINE.

Bisphenols have endocrine-disrupting effects, which may disrupt Hb (Hb) homeostasis and lead to anemia. However, the effects of bisphenols on anemia remain unknown. Therefore, we assessed the effects of single- and multiple-exposure to bisphenols on Hb levels and anemia of pregnant women. The study involved 2035 pregnant women from Guangxi Zhuang Birth Cohort in China. Generalized linear regression, principal component anal. (PCA), quantile g-computation (Qgcomp), and Bayesian kernel machine regression (BKMR) were performed to examine the effects of serum bisphenols on Hb levels and the risk of anemia. After adjustment, elevated bisphenol A (BPA) levels were correlated with decreased Hb concentrations (β = -0.51; 95%CI: -0.92, -0.10) in the first trimester, and these correlations were more sensitive in mothers of males. Compared with the low-exposure group, bisphenol B (BPB) levels in the high-exposure group led to a 1.52 g/L (95%CI: -3.01, -0.03) decrease in Hb levels in the second trimester; tetrabromobisphenol A (TBBPA) levels in the high-exposure group led to a higher the risk of anemia in the third trimester (OR = 1.46; 95%CI: 1.07, 1.99); bisphenol F (BPF) in the high-exposure group led to lower Hb levels (β = -2.42; 95%CI:-4.69, -0.14) in mothers of male fetuses in the third trimester. Qgcomp showed that elevated levels of bisphenol mixture was correlated with (β = -1.42; 95%CI: -2.61, -0.24) decrease in Hb levels in the second trimester. PCA revealed a neg. association between PC2 and Hb levels in the first trimester (β = -0.89; 95%CI: -1.61, -0.17). Similarly, a neg. relationship was observed between PC1 and Hb levels in the third trimester among mothers with male fetuses (β = -1.00; 95%CI: -1.94, -0.06). Prenatal exposure to single and mixed bisphenols may decrease Hb levels and increase the risk of anemia during pregnancy, the associations may be greater in mothers with male fetuses than those with female fetuses.

Environmental Research published new progress about 80-09-1. 80-09-1 belongs to alcohols-buliding-blocks, auxiliary class Ploymers, name is 4,4′-Sulfonyldiphenol, and the molecular formula is C12H10O4S, Formula: C12H10O4S.

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

Zhao, Shu-hui published the artcileEffect observation of prevention on postpartum bleeding in cesarean section by carboprost tromethamine injection combined with calcium gluconate, Product Details of C25H47NO8, the publication is Yixue Zongshu (2014), 20(14), 2664-2665, database is CAplus.

The preventive effect on postpartum bleeding in Cesarean section by carboprost tromethamine injection combined with calcium gluconate was investigated. A total of 192 maternal patients cases with the risk factors of postpartum hemorrhage and a clear indication of Cesarean section from Jan.2010 to Jan.2013 in Traditional Chinese Medicine Hospital of Beijing Shunyi District were randomly divided into oxytocin group and combination therapy group with 96 cases in each: the oxytocin group was given oxytocin 10-20 U and carboprost 10 mg, on the basic of which, the other group was added carboprost tromethamine injection 25 μg. The amount of bleeding within 24 h and adverse reactions were observed in the two groups. The postoperative hemorrhage during operation and within 24 h after operation of the combination therapy group were significantly less than oxytocin group [(216.9±54.4) mL vs (360.6±52.8) mL, (128.0±29.1) mL vs (221.9±42.7) mL, P<0.05]. And adverse reactions in the combination therapy group were significantly less than the oxytocin group [10.4% (10/96) vs 31.3% (30/96), P<0.05]. Carboprost tromethamine injection combined with calcium gluconate could effectively prevent intraoperative postpartum hemorrhage of Cesarean section, reduce adverse reaction, thus was worth of promotion in clin.

Yixue Zongshu published new progress about 58551-69-2. 58551-69-2 belongs to alcohols-buliding-blocks, auxiliary class Chiral,Alkenyl,Amine,Aliphatic cyclic hydrocarbon,Ester,Alcohol,Inhibitor,, name is 2-Amino-2-(hydroxymethyl)propane-1,3-diol (Z)-7-((1R,2R,3R,5S)-3,5-dihydroxy-2-((S,E)-3-hydroxy-3-methyloct-1-en-1-yl)cyclopentyl)hept-5-enoic acid, and the molecular formula is C18H28N2O7, Product Details of C25H47NO8.

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

Cai, Aijie published the artcileCopper-Catalyzed Difluoromethylation of Alkyl Iodides Enabled by Aryl Radical Activation of Carbon-Iodine Bonds, SDS of cas: 20880-92-6, the publication is Angewandte Chemie, International Edition (2021), 60(52), 27070-27077, database is CAplus and MEDLINE.

A novel strategy that leveraged the halogen abstraction ability of aryl radicals, thereby engaging a diverse range of alkyl iodides in copper-catalyzed Negishi-type cross-coupling reactions at room temperature Specifically, aryl radicals generated via copper catalysis efficiently initiate the cleavage of the carbon-iodide bonds of alkyl iodides. The alkyl radicals thus generated enter the copper catalytic cycles to couple with a difluoromethyl zinc reagent, thus furnished the alkyl difluoromethane products. This unprecedented Negishi-type difluoromethylation approach was applied to the late-stage modification of densely functionalized pharmaceutical agents and natural products.

Angewandte Chemie, International Edition 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 C12H20O6, SDS of cas: 20880-92-6.

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

Lou, Geer published the artcileGC-MS based metabolomics uncovers the mechanism of Curcumae rhizoma and Sparganii rhizome on blood stasis syndrome in liver dialysis, Category: alcohols-buliding-blocks, the publication is Pakistan Journal of Pharmaceutical Sciences (2020), 33(Suppl.2), 771-777, database is CAplus.

Blood stasis syndrome (BSS) is characterized by blood retardation and is the major cause of some deadly diseases. Some factors that affect BSS have been identified. However, the small mol. that related to BSS is still largely unknown. Traditional Chinese Medicine (TCM), such as Sanleng and Ezhu, has been used for a long time in treating BSS and promising outcomes have been achieved. However, the mechanism of how they work is unclear. Thus, we constructed the Rat BSS model and treated them with Sanleng and Ezhu. Then, the liver dialysis of those rats was collected and the small mol. metabolites were analyzed by GC-MS based metabolomics approach. Our results showed after Sanleng and Ezhu treatment, several small mol. metabolites were significantly changed metabolites (VIP>1 and P<0.05). Pathway enrichment anal. also showed that Sanleng and Ezhu share the similar mechanism in treating BSS, such as regulating Glyoxylate and dicarboxylate metabolism pathway and energy metabolism Besides, we also identified some key metabolites that were significantly correlated with BSS. In conclusion, those findings uncover the mechanism of Sanleng and Ezhu in treating BSS.

Pakistan Journal of Pharmaceutical Sciences published new progress about 526-98-7. 526-98-7 belongs to alcohols-buliding-blocks, auxiliary class Sugar Units,Other Sugar Units, name is (3S,4R,5S)-3,4,5,6-Tetrahydroxy-2-oxohexanoic acid, and the molecular formula is C6H10O7, Category: alcohols-buliding-blocks.

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

Bi, Jianlu published the artcilePlasma metabonomic analysis of healthy qi-deficiency constitution after the intervention by Buzhongyiqi pills, Recommanded Product: (3S,4R,5S)-3,4,5,6-Tetrahydroxy-2-oxohexanoic acid, the publication is Chongqing Yike Daxue Xuebao (2014), 39(8), 1124-1127, database is CAplus.

Objective: To compare the endogenous metabolites in the plasma of people with qi-deficiency constitution after the intervention by Buzhongyiqi pills using NMR (NMR)-based metabonomics and to find the possible specific metabolites. Methods: healthy people with qi-deficiency constitution were recruited and divided into control group and intervention group. Buzhongyiqi pills were used to do the intervention and the plasma was tested by NMR-based metabonomics before and after the intervention. Multivariate statistical anal. was done to find the serum-derived metabolic differences after the intervention by Buzhongyiqi pills. Results: The plasma before and after the intervention was analyzed by Simca-P and 45 changed chem. shift values (VIP > 1, P < 0.05) were selected. Thirty specific metabolites were found through human metabolite database. Conclusion: These differences in metabolites are related to the tricarboxylic acid cycle. Buzhongyiqi pills can improve the disorder of energy metabolism, memory deterioration and fatigue of qi-deficiency population, which may associated with its regulation of GABA, phosphatidylcholine, blood ammonia concentration

Chongqing Yike Daxue Xuebao published new progress about 526-98-7. 526-98-7 belongs to alcohols-buliding-blocks, auxiliary class Sugar Units,Other Sugar Units, name is (3S,4R,5S)-3,4,5,6-Tetrahydroxy-2-oxohexanoic acid, and the molecular formula is C6H10O7, Recommanded Product: (3S,4R,5S)-3,4,5,6-Tetrahydroxy-2-oxohexanoic acid.

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

Guo, Liulong published the artcileHyperbranched Polyborate: A Non-conjugated Fluorescent Polymer with Unanticipated High Quantum Yield and Multicolor Emission, Synthetic Route of 111-29-5, the publication is Angewandte Chemie, International Edition (2022), 61(29), e202204383, database is CAplus and MEDLINE.

Non-conjugated fluorescent polymers have attracted great attention due to their excellent biocompatibility and environmental friendliness. However, it remains a huge challenge to obtain a polymer with high fluorescence quantum yield (QY) and multicolor emission simultaneously. Herein, we reported three kinds of nonaromatic hyperbranched polyborates (P1-P3) with multicolor emission, surprisingly, P2 also exhibits an unanticipated high QY (54.1%). The natural bond orbital (NBO) anal. and d. functional theory (DFT) calculation results revealed that the synergistic effect of rigid BO₃ planar and flexible carbon chain, as well as the through-space dative bond in supramol. aggregate, were the key factors contributing to the ultrahigh QY of P2. Moreover, the applications of P2 in Fe³⁺ ions detection and cell imaging were also investigated. This work provides a new perspective for designing non-conjugated fluorescent polymers with both high QY and multicolor emission.

Angewandte Chemie, International Edition published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C5H12O2, Synthetic Route of 111-29-5.

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

Meng, Qinglei published the artcileSustainable production of benzene from lignin, Category: alcohols-buliding-blocks, the publication is Nature Communications (2021), 12(1), 4534, database is CAplus and MEDLINE.

Benzene is a widely used commodity chem., which is currently produced from fossil resources. Lignin, a waste from lignocellulosic biomass industry, is the most abundant renewable source of benzene ring in nature. Efficient production of benzene from lignin, which requires total transformation of Csp2-Csp3/Csp2-O into C-H bonds without side hydrogenation, is of great importance, but has not been realized. Here, we report that high-silica HY zeolite supported RuW alloy catalyst enables in situ refining of lignin, exclusively to benzene via coupling Bronsted acid catalyzed transformation of the Csp2-Csp3 bonds on the local structure of lignin mol. and RuW catalyzed hydrogenolysis of the Csp2-O bonds using the locally abstracted hydrogen from lignin mol., affording a benzene yield of 18.8% on lignin weight basis in water system. The reaction mechanism is elucidated in detail by combination of control experiments and d. functional theory calculations The high-performance protocol can be readily scaled up to produce 8.5 g of benzene product from 50.0 g lignin without any saturation byproducts. This work opens the way to produce benzene using lignin as the feedstock efficiently.

Nature Communications published new progress about 645-56-7. 645-56-7 belongs to alcohols-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 4-Propylphenol, and the molecular formula is C9H12O, Category: alcohols-buliding-blocks.

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