Month: October 2022

In 2019,European Journal of Medicinal Chemistry included an article by Dei, Silvia; Braconi, Laura; Trezza, Alfonso; Menicatti, Marta; Contino, Marialessandra; Coronnello, Marcella; Chiaramonte, Niccolo; Manetti, Dina; Perrone, Maria Grazia; Romanelli, Maria Novella; Udomtanakunchai, Chatchanok; Colabufo, Nicola Antonio; Bartolucci, Gianluca; Spiga, Ottavia; Salerno, Milena; Teodori, Elisabetta. Reference of 3-Aminopropan-1-ol. The article was titled 《Modulation of the spacer in N,N-bis(alkanol)amine aryl ester heterodimers led to the discovery of a series of highly potent P-glycoprotein-based multidrug resistance (MDR) modulators》. The information in the text is summarized as follows:

In this study, a new series of N,N-bis(alkanol)amine aryl ester heterodimers was synthesized and studied. The new compounds were designed based on the structures of our previous arylamine ester derivatives endowed with high P-gp-dependent multidrug resistance reversing activity on a multidrug-resistant leukemia cell line. All new compounds were active in the pirarubicin uptake assay on the doxorubicin-resistant erythroleukemia K562 cells (K562/DOX). Compounds bearing a linker made up of 10 methylenes showed unprecedented high reversal activities regardless of the combination of aromatic moieties. Docking results obtained by an in silico study supported the data obtained by the biol. tests and a study devoted to establish the chem. stability in phosphate buffer solution (PBS) and human plasma showed that only a few compounds exhibited a significant degradation in the human plasma matrix. Ten selected non-hydrolysable derivatives were able to inhibit the P-gp-mediated rhodamine-123 efflux on K562/DOX cells, and the evaluation of their apparent permeability and ATP consumption on other cell lines suggested that the compounds can behave as unambiguous or not transported substrates. The activity of these the compounds on the transport proteins breast cancer resistance protein (BCRP) and multidrug resistance associated protein 1 (MRP1) was also analyzed. All tested derivatives displayed a moderate potency on the BCRP overexpressing cells; while only four mols. showed to be effective on MRP1 overexpressing cells, highlighting a clear structural requirement for selectivity. In conclusion, we have identified a new very powerful series of compounds which represent interesting leads for the development of new potent and efficacious P-gp-dependent MDR modulators. The results came from multiple reactions, including the reaction of 3-Aminopropan-1-ol(cas: 156-87-6Reference of 3-Aminopropan-1-ol)

3-Aminopropan-1-ol(cas: 156-87-6) belongs to anime. Reduction of nitro compounds, RNO2, by hydrogen or other reducing agents produces primary amines cleanly (i.e., without a mixture of products), but the method is mostly used for aromatic amines because of the limited availability of aliphatic nitro compounds. Reduction of nitriles and oximes (R2C=NOH) also yields primary amines.Reference of 3-Aminopropan-1-ol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2019,Journal of the Iranian Chemical Society included an article by Maleki, Ali; Eskandarpour, Vahid. Recommanded Product: 3-Hydroxybenzaldehyde. The article was titled 《Design and development of a new functionalized cellulose-based magnetic nanocomposite: preparation, characterization, and catalytic application in the synthesis of diverse pyrano[2,3-c]pyrazole derivatives》. The information in the text is summarized as follows:

In this work, a facile protocol for the preparation of a new cellulose-based functionalized magnetic nanocomposite catalyst is described. The structure and morphol. of the prepared nanomaterial was characterized by SEM, energy-dispersive X-ray anal., X-ray diffraction patterns, and Fourier transform IR spectroscopy analyses. Then, its catalytic activity was investigated in the synthesis of 2,4-dihydropyrano[2,3-c]pyrazole I (R1 = CN, COOEt; R2 = H, 3-OH, 3-NO2, etc.; R3 = H, Me) and spiro[indoline-3,4′-pyrano[2,3-c] pyrazole derivatives II (R1 = CN, COOEt; R4 = 6-NO2, H, 5-Cl; R5 = H, Bn, Et, etc.) through a one-pot four-component reaction between isatin or aldehydes or acetophenones, ethylacetoacetate, hydrazine hydrate, and malononitrile or ethylcyanoacetate in short reaction times, high yields, and mild conditions. The nanocomposite was simply separated by an external magnet and reused several times without remarkable loss of activity. In the part of experimental materials, we found many familiar compounds, such as 3-Hydroxybenzaldehyde(cas: 100-83-4Recommanded Product: 3-Hydroxybenzaldehyde)

3-Hydroxybenzaldehyde(cas: 100-83-4) can be used as a reactant along with ethyl acetoacetate and thiourea in the synthesis of corresponding dihydropyrimidine-2-thione (monastrol), using Yb(OTf)3 as a catalyst by Biginelli cyclocondensation reaction.Recommanded Product: 3-Hydroxybenzaldehyde

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2019,International Journal of Hydrogen Energy included an article by Yao, Jin; Xu, Guoxiao; Zhao, Ziming; Guo, Jing; Li, Shenghai; Cai, Weiwei; Zhang, Suobo. Category: alcohols-buliding-blocks. The article was titled 《An enhanced proton conductivity and reduced methanol permeability composite membrane prepared by sulfonated covalent organic nanosheets/Nafion》. The information in the text is summarized as follows:

Sulfonated covalent organic nanosheets (SCONs) with a functional group (-SO3H) are effective at reducing ion channels length and facilitating proton diffusion, indicating the potential advantage of SCONs in application for proton exchange membranes (PEMs). In this study, Nafion-SCONs composite membranes were prepared by introducing SCONs into a Nafion membrane. The incorporation of SCONs not only improved proton conductivity, but also suppressed methanol permeability. This was due to the even distribution of ion channels, formed by strong electrostatic interaction between the well dispersed SCONs and Nafion polymer mols. Notably, Nafion-SCONs-0.6 was the best choice of composite membranes. It exhibited enhanced performance, such as high conductivity and low methanol permeability. The direct methanol fuel cell (DMFC) with Nafion-SCONs-0.6 membrane also showed higher power d. (118.2 mW cm-2), which was 44% higher than the cell comprised of Nafion membrane (81.9 mW cm-2) in 2 M methanol at 60°. These results enabled to work on building composite membranes with enhanced properties, made from nanomaterials and polymer mols. In the experiment, the researchers used 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4Category: alcohols-buliding-blocks)

2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4) is a member of phloroglucinol derivatives.Category: alcohols-buliding-blocksPhloroglucinols are known for their broad-spectrum antiviral, antibacterial, antifungal, antihelminthic, and phytotoxic activities.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2019,Journal of Medicinal Chemistry included an article by Engelhardt, Harald; Boese, Dietrich; Petronczki, Mark; Scharn, Dirk; Bader, Gerd; Baum, Anke; Bergner, Andreas; Chong, Eugene; Doebel, Sandra; Egger, Georg; Engelhardt, Christian; Ettmayer, Peter; Fuchs, Julian E.; Gerstberger, Thomas; Gonnella, Nina; Grimm, Andreas; Grondal, Elisabeth; Haddad, Nizar; Hopfgartner, Barbara; Kousek, Roland; Krawiec, Mariusz; Kriz, Monika; Lamarre, Lyne; Leung, Joyce; Mayer, Moriz; Patel, Nitinchandra D.; Simov, Biljana Peric; Reeves, Jonathan T.; Schnitzer, Renate; Schrenk, Andreas; Sharps, Bernadette; Solca, Flavio; Stadtmueller, Heinz; Tan, Zhulin; Wunberg, Tobias; Zoephel, Andreas; McConnell, Darryl B.. Recommanded Product: 89466-08-0. The article was titled 《Start Selective and Rigidify: The Discovery Path toward a Next Generation of EGFR Tyrosine Kinase Inhibitors》. The information in the text is summarized as follows:

The epidermal growth factor receptor (EGFR), when carrying an activating mutation like del19 or L858R, acts as an oncogenic driver in a subset of lung tumors. While tumor responses to tyrosine kinase inhibitors (TKIs) are accompanied by marked tumor shrinkage, the response is usually not durable. Most patients relapse within two years of therapy often due to acquisition of an addnl. mutation in EGFR kinase domain that confers resistance to TKIs. Crucially, oncogenic EGFR harboring both resistance mutations, T790M and C797S, can no longer be inhibited by currently approved EGFR TKIs. Here, we describe the discovery of BI-4020, which is a noncovalent, wild-type EGFR sparing, macrocyclic TKI. BI-4020 potently inhibits the above-described EGFR variants and induces tumor regressions in a cross-resistant EGFRdel19 T790M C797S xenograft model. Key was the identification of a highly selective but moderately potent benzimidazole followed by complete rigidification of the mol. through macrocyclization. The experimental part of the paper was very detailed, including the reaction process of 2-Hydroxyphenylboronic acid(cas: 89466-08-0Recommanded Product: 89466-08-0)

2-Hydroxyphenylboronic acid(cas: 89466-08-0) belongs to acyl phenylboronic acid. Phenylboronic acid (PBA) has been used to extract β-blockers (a class of aminoalcohol-containing drugs) from aqueous solution, rat, and human plasma. Recommanded Product: 89466-08-0

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The author of 《Matrix matters: Hyperbranched flame retardants in aliphatic and aromatic epoxy resins》 were Battig, Alexander; Markwart, Jens C.; Wurm, Frederik R.; Schartel, Bernhard. And the article was published in Polymer Degradation and Stability in 2019. Name: 5-Hexen-1-ol The author mentioned the following in the article:

Library of phosphorus-based flame retardants: phosphates and phosphoramides of low and high molar mass synthesis and their behavior investigation in two epoxy resins: one aliphatic and one aromatic The pyrolytic and burning behavior of the two resins (via TGA, TG-FTIR, Hot stage FTIR, Py-GC/MS, PCFC, DSC, LOI, UL-94, Cone calorimeter) are analyzed and compared to the results of flame retardant (FR)-containing composites. A decomposition pathway incorporating the identified modes of action and known chem. mechanisms is proposed. The overlap of decomposition temperature (Tdec) ranges of matrix and FR determines the efficacy of the system. Low molar mass FRs strongly impact material properties like Tg but are very reactive, and high molar mass variants are more thermally stable. Varying P-O and P-N content of the FR affects decomposition, but the chem. structure of the matrix also guides FR behavior. Thus, phosphates afford lower fire load and heat release in aliphatic epoxy resins, and phosphoramides can act as additives in an aromatic matrix or a reactive FRs in aliphatic ones. The chem. structure and the structure-property relationship of both FR and matrix are central to FR performance and must be viewed not as two sep. but as one codependent system. In the part of experimental materials, we found many familiar compounds, such as 5-Hexen-1-ol(cas: 821-41-0Name: 5-Hexen-1-ol)

5-Hexen-1-ol(cas: 821-41-0) is used in cyclization to a tetrahydropyran by phenylselenoetherification. It is also used as a building block in synthetic chemistry.Name: 5-Hexen-1-ol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The author of 《Fe3O4@FSM-16-SO3H as a novel magnetically recoverable nanostructured catalyst: preparation, characterization and catalytic application》 were Hashemi-Uderji, Somayeh; Abdollahi-Alibeik, Mohammad; Ranjbar-Karimi, Reza. And the article was published in Journal of Porous Materials in 2019. Name: 3-Hydroxybenzaldehyde The author mentioned the following in the article:

Fe3O4@FSM-16-SO3H was prepared as new magnetically recoverable catalyst and characterized by SEM, BET, XRD, EDS, VSM and FT-IR techniques. The catalytic activity was investigated in the reaction of various aldehydes, Et cyanoacetate, dimedone and ammonium acetate for the preparation of Polyhydroquinolines in one pot. This protocol suggests benefits in terms of higher yields and short reaction time. In addition, the catalyst could be separated using an external magnet and is reusable many times without significant loss of activity. In the experiment, the researchers used 3-Hydroxybenzaldehyde(cas: 100-83-4Name: 3-Hydroxybenzaldehyde)

3-Hydroxybenzaldehyde(cas: 100-83-4) is used as an ionophore, during the development of an highly selective and sensitive PVC membrane sensor, which can be used as a Tb3+ ion selective electrode.Name: 3-Hydroxybenzaldehyde

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The author of 《Mechanical Susceptibility of a Rotaxane》 were Zhang, Min; De Bo, Guillaume. And the article was published in Journal of the American Chemical Society in 2019. COA of Formula: C3H7BrO The author mentioned the following in the article:

We have investigated the mech. dissociation of an ammonium/crown ether rotaxane using exptl. (sonication) and computational (CoGEF) methods and found that it breaks faster than its noninterlocked or uncoupled interlocked (i.e., pulled from both sides of the axle) counterparts. This was confirmed by the anal. of the fragments, which are the results of a selective unstoppering reaction. Interestingly, the initial dissociation also triggered the elimination of the axle segment separating the stopper from the ammonium binding station. CoGEF calculations have shown that the constriction of the axle by the macrocycle during the elongation of the rotaxane provokes the accumulation of tensile and torsional stress that ultimately leads to the rupture of a covalent bond in the constricted section of the axle. Overall, these results suggest that the rotaxane architecture acts as a lever that accelerates the dissociation of interlocked covalent bonds. This phenomenon could impact the mech. properties of slide-ring materials at high strain. The experimental process involved the reaction of 3-Bromopropan-1-ol(cas: 627-18-9COA of Formula: C3H7BrO)

3-Bromopropan-1-ol(cas: 627-18-9) is used in the synthesis of fluorescent halide-sensitive quinolinium dyes, chiral, quaternary prolines through cyclization of quaternary amino acids and molten salt-polymers. It is utilized for the study of micellar media and in microemulsions based on cationic or a nonionic surfactant by reacting with phenols.COA of Formula: C3H7BrO

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The author of 《Efficient and Selective Methane Borylation Through Pore Size Tuning of Hybrid Porous Organic Polymer Based Iridium Catalysts》 were Chen, Qi; Dong, Anwang; Wang, Dongxu; Qiu, Lu; Ma, Chunxin; Yuan, Yihui; Zhao, Yunpeng; Jia, Na; Guo, Zhanhu; Wang, Ning. And the article was published in Angewandte Chemie, International Edition in 2019. Recommanded Product: Bis[(pinacolato)boryl]methane The author mentioned the following in the article:

As a new energy source that could replace petroleum, the global reserves of methane hydrate (combustible ice) are estimated to be approx. 20 000 trillion cubic meters. A large amount of methane hydrate has been found under the seabed, but the transportation and storage of methane gas far from coastlines are tech. unfeasible and expensive. The direct conversion of methane into value-added chems. and liquid fuels is highly desirable but remains challenging. Herein, we prepare a series of iridium complexes based on porous polycarbazoles with high specific areas and good thermochem. stabilities. Through structure tuning we optimized their catalytic activities for the selective monoborylation of methane. One of these catalysts (CAL-3-Ir) can produce Me boronic acid pinacol ester (CH3Bpin) in 29% yield in 9 h with a turnover frequency (TOF) of approx. 14 h-1. Because its pore sizes favor monoborylated products, it has a high chemoselectivity for monoborylation (CH3Bpin:CH2(Bpin)2=16:1). The experimental part of the paper was very detailed, including the reaction process of Bis[(pinacolato)boryl]methane(cas: 78782-17-9Recommanded Product: Bis[(pinacolato)boryl]methane)

Bis[(pinacolato)boryl]methane(cas: 78782-17-9) belongs to organoboron compounds.Recommanded Product: Bis[(pinacolato)boryl]methane Organoboron compounds have been a cornerstone of synthetic transformations for decades. Areas such as boron-containing catalysts, metalate chemistry, photoredox methods, and boryl anions have brought significant new developments in understanding and provided new reactivity upon.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The author of 《Hip To Be Square: Oxetanes as Design Elements To Alter Metabolic Pathways》 were Toselli, Francesca; Fredenwall, Marlene; Svensson, Peder; Li, Xue-Qing; Johansson, Anders; Weidolf, Lars; Hayes, Martin A.. And the article was published in Journal of Medicinal Chemistry in 2019. HPLC of Formula: 18621-18-6 The author mentioned the following in the article:

Oxetane-containing ring systems are increasingly used in medicinal chem. programs to modulate druglike properties. We have shown previously that oxetanes are hydrolyzed to diols by human microsomal epoxide hydrolase (mEH). Mapping the enzymes that contribute to drug metabolism is important since an exaggerated dependence on one specific isoenzyme increases the risk of drug-drug interactions with co-administered drugs. Herein, we illustrate that mEH-catalyzed hydrolysis is an important metabolic pathway for a set of more structurally diverse oxetanes and the degree of hydrolysis is modulated by minor structural modifications. A homol. model based on the Bombyx mori EH crystal structure was used to rationalize substrate binding. This study shows that oxetanes can be used as drug design elements for directing metabolic clearance via mEH, thus potentially decreasing the dependence on cytochromes P 450. Metabolism by mEH should be assessed early in the design process to understand the complete metabolic fate of oxetane-containing compounds, and further study is required to allow accurate pharmacokinetic predictions of its substrates. The experimental process involved the reaction of Azetidin-3-ol hydrochloride(cas: 18621-18-6HPLC of Formula: 18621-18-6)

Azetidin-3-ol hydrochloride(cas:18621-18-6) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.HPLC of Formula: 18621-18-6 Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Intramolecular hydrogen bond stabilized conformation of 3-aminopropanol》 was published in Journal of Molecular Spectroscopy in 2020. These research results belong to Khalil, Andrew S.; Lavrich, Richard J.. HPLC of Formula: 156-87-6 The article mentions the following:

Rotational spectra of the most abundant, three 13C, and the 15N isotopologues of 3-aminopropanol have been recorded in natural abundance using a Fourier-transform microwave spectrometer. For the most abundant isotopologue, 54 hyperfine components from the thirteen a- and b-type transitions measured were fit to the quadupole coupling constants, χaa = -2.551(1) MHz, χbb = 1.248(1) MHz. Rotational and centrifugal distortion constants determined from fits of the resulting unsplit line centers to the Watson A-reduction Hamiltonian are A = 7405.303(1) MHz, B = 3868.1925(5) MHz, C = 2829.2615(7) MHz, ΔJ = 1.90(3) kHz, ΔJK = -0.5(3) kHz, ΔK = 2.7(3) kHz, δJ = 0.5(4) kHz, and dK = 4.0(4) kHz. Five to six transitions were measured for each of the 13C and 15N isotopologues and rotational constants were determined by fixing the distortion constants to the values found for the normal isotope. The five sets of moments of inertia were used to determine the 3-aminopropanol substitution structure as well to perform a least-squares fit. The heavy atom coordinates determined from these two methods are in good agreement. The newly measured moments of inertia of the heavy atoms has allowed for a refinement of the structure determined by an earlier microwave study. In addition to this study using 3-Aminopropan-1-ol, there are many other studies that have used 3-Aminopropan-1-ol(cas: 156-87-6HPLC of Formula: 156-87-6) was used in this study.

3-Aminopropan-1-ol(cas: 156-87-6) belongs to anime. Left-handed and right-handed forms (mirror-image configurations, known as optical isomers or enantiomers) are possible when all the substituents on the central nitrogen atom are different (i.e., the nitrogen is chiral). With amines, there is extremely rapid inversion in which the two configurations are interconverted.HPLC of Formula: 156-87-6

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts