Author: Jessica.F

Niwa, Hideaki; Watanabe, Chiduru; Sato, Shin; Harada, Toshiyuki; Watanabe, Hisami; Tabusa, Ryo; Fukasawa, Shunsuke; Shiobara, Ayane; Hashimoto, Tomoko; Ohno, Osamu; Nakamura, Kana; Tsuganezawa, Keiko; Tanaka, Akiko; Shirouzu, Mikako; Honma, Teruki; Matsuno, Kenji; Umehara, Takashi published the artcile< Structure-Activity Relationship and In Silico Evaluation of cis- and trans-PCPA-Derived Inhibitors of LSD1 and LSD2>, HPLC of Formula: 6482-24-2, the main research area is phenylcycloproylamine preparation diastereoselective SAR anticancer enzyme inhibitor activity.

Synthesis of 65 cis- and trans-PCPA derivatives I [R = R1 = H, F; R2 = H, Cl, Me, etc.; R3 = H, F, OH; R4 = H, Br, CF3, etc.] and evaluated their inhibitory activity against LSD1 and LSD2 were reported. One of the derivatives, I [R = R3 = H, R1 = R2 = F, R4 = Br] inhibited LSD1 and LSD2 with Ki values of 0.094μM and 8.4μM, resp., and increased the level of dimethylated histone H3 at K4 in CCRF-CEM cells. A machine learning-based regression model (Q2 = 0.61) to predict LSD1-inhibitory activity was also constructed and showed a good prediction accuracy (R2 = 0.81) for I. The present methodol. would be useful when designing covalent-binding inhibitors for other enzymes.

ACS Medicinal Chemistry Letters published new progress about Antitumor agents. 6482-24-2 belongs to class ethers-buliding-blocks, and the molecular formula is C3H7BrO, HPLC of Formula: 6482-24-2.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Zhu, Yuchao; Zhang, Ziyao; Jin, Rui; Liu, Jianzhong; Liu, Guoquan; Han, Bing; Jiao, Ning published the artcile< DMSO-Enabled Selective Radical O-H Activation of 1,3(4)-Diols>, Quality Control of 6482-24-2, the main research area is diol silver DMSO aryl migration catalyst; ether keto preparation; DMSO; alkoxyl radicals; cleavage reactions; selectivity; silver.

Control of selectivity is one of the central topics in organic chem. Although unprecedented alkoxyl-radical-induced transformations have drawn a lot of attention, compared to selective C-H activation, selective radical O-H activation remains less explored. Herein, we report a novel selective radical O-H activation strategy of diols by combining spatial effects with proton-coupled electron transfer (PCET). It was found that DMSO is an essential reagent that enables the regioselective transformation of diols. Mechanistic studies indicated the existence of the alkoxyl radical and the selective interaction between DMSO and hydroxyl groups. Moreover, the distal C-C cleavage was realized by this selective alkoxyl-radical-initiation protocol.

Angewandte Chemie, International Edition published new progress about Aliphatic alcohols, radicals Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 6482-24-2 belongs to class ethers-buliding-blocks, and the molecular formula is C3H7BrO, Quality Control of 6482-24-2.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Leed, Andrew R.; Boettger, Susan D.; Ganem, Bruce published the artcile< Studies on the synthesis of substituted phenanthrenoids>, Reference of 56724-03-9, the main research area is juncusol; phenanthrene substituted; halogenation regioselective benzene.

Highly regioselective reactions for the construction of polysubstituted benzenes I (R = H, Me, SiMe2CMe3; R1, R2 = H, Br) and II (R3 = CO2H, CH2OH, CH2Br, CH2PPh3Br) are described, including some remarkable site-selective halogenations. These were used to prepare halo-, nitro-, amino-, and urethane-substituted stilbenes e.g., (E)-III (R4 = NO2, NH2, NHCO2Et; R5, R6 = H, iodo). Thermal as well as photochem. cyclizations were attempted. Stilbene III (R4 = NO2, R5 = H, R6 = iodo) gave the IV (R7 = H, Br; R8 = NO2, NH2); likewise III (R4 = NHCO2Et, R5 = H, R6 = iodo) furnished two new tricyclics, IV (R7 = Br; R8 = NH2, NHCO2Et), whereas irradiation of III (R4 = NHCO2Et, R5 = R6 = H) in HOCMe3 captured solvent to produce phenanthrenes IV (R7 = NHCO2Et; R8 = OH, OCMe3). Strategies for the total synthesis of juncusol (V), a cytotoxic phytoalexin, are considered.

Journal of Organic Chemistry published new progress about Halogenation, regioselective. 56724-03-9 belongs to class ethers-buliding-blocks, and the molecular formula is C9H10O2, Reference of 56724-03-9.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Liu, Yu; Cornella, Josep; Martin, Ruben published the artcile< Ni-Catalyzed Carboxylation of Unactivated Primary Alkyl Bromides and Sulfonates with CO2>, Application of C11H16O2, the main research area is nickel catalyzed carboxylation primary alkyl bromide sulfonate carbon dioxide; carboxylic acid synthesis.

A Ni-catalyzed carboxylation of unactivated primary alkyl bromides and sulfonates with CO2 at atm. pressure is described. The method is characterized by its mild conditions and remarkably wide scope without the need for air- or moisture-sensitive reagents, which make it a user-friendly and operationally simple protocol en route to carboxylic acids. Thus, e.g., reductive carboxylation 1-bromo-6-(4-methoxyphenyl)hexane using NiCl2.glyme, 2,9-diethyl-1,10-phenanthroline ligand, Mn as reducing agent and CO2 afforded 7-(4-methoxyphenyl)heptanoic acid in 76% isolated yield.

Journal of the American Chemical Society published new progress about Bromoalkanes Role: RCT (Reactant), RACT (Reactant or Reagent) (primary). 52244-70-9 belongs to class ethers-buliding-blocks, and the molecular formula is C11H16O2, Application of C11H16O2.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Jagannadham, Y.; Ramadevi, B.; Prasanna, B. published the artcile< An improved economical process for preparation of apremilast and identified their impurities>, Related Products of 608141-42-0, the main research area is acetamidophthalic acid ethoxy methoxyphenyl methylsulfonyl ethylamine cyclocondensation; apremilast preparation.

An improved and com. viable process provided for the preparation of apremilast, which was simple, cost effective and non-hazardous. The usage of acetic anhydride and high temperature was avoided. An alternative process using protected 3-aminophthalic acid with acetyl chloride in the presence of triethanolamine as catalyst in dichloromethane solvent at 0 to 5° for 1 h. then followed by condensed with (S)-1-(3-Ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethylamine to get the final apremilast product was reported. Besides, there were two unknown impurities like 3-(amino-1,3-dioxoisoindolin-2-yl)phthalic acid and 4-aminoisobenzofuran-1,3-dione identified by HPLC. A thorough study was under taken to synthesize and characterize these unknown impurities. This improved process has a number of industrial advantages, such as economical material cost and relatively high yield. The structure of the synthesized compounds was elucidated by IR, 1H NMR, 13C NMR, mass spectroscopy and elemental analyses.

Asian Journal of Chemistry published new progress about Cyclocondensation reaction. 608141-42-0 belongs to class ethers-buliding-blocks, and the molecular formula is C12H19NO4S, Related Products of 608141-42-0.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Nagasawa, Shota; Sasano, Yusuke; Iwabuchi, Yoshiharu published the artcile< Catalytic Oxygenative Allylic Transposition of Alkenes into Enones with an Azaadamantane-Type Oxoammonium Salt Catalyst>, Category: ethers-buliding-blocks, the main research area is allylic transposition oxygenative alkene azaadamantane type oxoammonium salt catalyst; enone preparation catalytic oxygenative allylic transposition alkene; alkenes; enones; organocatalysis; oxygenation; synthetic methods.

The first catalytic oxygenative allylic transposition of unactivated alkenes, e.g., Me2C:CH2(CH2)3OCOPh, into enones, e.g., H2C:C(Me)CO(CH2)3OCOPh, has been developed using an oxoammonium salt, azaadamantane I, as the catalyst. This reaction converts various tri- and trans-disubstituted alkenes into their corresponding enones with transposition of their double bonds at ambient temperature in good yields. The use of a less-hindered azaadamantane-type oxoammonium salt as the catalyst and a combination of two distinct stoichiometric oxidants, namely, iodobenzene diacetate and magnesium monoperoxyphthalate hexahydrate (MMPP·6H2O) are essential to facilitate the enone formation efficiently.

Chemistry – A European Journal published new progress about Alkenes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 52244-70-9 belongs to class ethers-buliding-blocks, and the molecular formula is C11H16O2, Category: ethers-buliding-blocks.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Li, Yangyang; Li, Yuqiang; Peng, Long; Wu, Dong; Zhu, Lei; Yin, Guoyin published the artcile< Nickel-catalyzed migratory alkyl-alkyl cross-coupling reaction>, Related Products of 52244-70-9, the main research area is alkyl halide migratory cross coupling bond formation nickel catalyst.

A migratory cross-coupling strategy, which can overcome this obstacle to access the desired cross-coupling products ArCH(R)(CH2)nCR1R2R3 (Ar = Ph, 4-fluorophenyl, indol-3-yl, etc.; R = cyclopentyl, cyclohexyl, cycloheptyl, N-benzyl-piperidin-4-yl, 2-methyl-propan-1-yl; R1 = H, D; R2 = H, D; R3 = H; n = 0-3, 5), 1-cyclopentyl-indan, 1-cycloheptyl-indan, (1-cyclopentyl-3-methyl-pentyl)benzene was described. Accordingly, a selective migratory cross-coupling of two alkyl electrophiles (RBr, ArCH(R)(CH2)nCR1R2R3 (R3 = Br or Cl), 2-bromoindan, (5-bromo-1-cyclopentyl-3-methyl-pentyl)benzene) has been accomplished by nickel catalysis. Remarkably, this alkyl-alkyl cross-coupling reaction provides a platform to prepare 2°-2° carbon-carbon bonds from 1° and 2° carbon coupling partners. Preliminary mechanistic studies suggest that chain-walking occurs at both alkyl halides in this reaction, thus a catalytic cycle with the key step involving two alkylnickel(II) species is proposed for this transformation.

Chemical Science published new progress about Aromatic hydrocarbons Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 52244-70-9 belongs to class ethers-buliding-blocks, and the molecular formula is C11H16O2, Related Products of 52244-70-9.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Kato, Eisuke; Oikawa, Kenichi; Takahashi, Keisuke; Kawabata, Jun published the artcile< Synthesis and the intestinal glucosidase inhibitory activity of 2-aminoresorcinol derivatives toward an investigation of its binding site>, Name: 2-Amino-3-methoxyphenol, the main research area is intestine glucosidase inhibitor aminoresorcinol derivative.

2-Aminoresorcinol is a potent and selective intestinal glucosidase inhibitor. Unlike the majority of glucosidase inhibitors, it shows an uncompetitive mode of inhibition. In this study, we tested the intestinal glucosidase inhibitory activity of various 2-aminoresorcinol derivatives We found that structural changes, in amino and two phenolic hydroxyl groups had a neg. impact on inhibitory activity, but methylation of the phenolic hydroxyl group was found to maintain its activity and replacement of the aromatic ring with an acyl or alkoxy carbonyl group at the 4th position also retained its activity. This enable us to design a mol. probe for further study of the inhibition mechanism of 2-aminoresorcinol.

Bioscience, Biotechnology, and Biochemistry published new progress about Carbonyl group. 40925-69-7 belongs to class ethers-buliding-blocks, and the molecular formula is C7H9NO2, Name: 2-Amino-3-methoxyphenol.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

McCalmont, William F.; Patterson, Jaclyn R.; Lindenmuth, Michael A.; Heady, Tiffany N.; Haverstick, Doris M.; Gray, Lloyd S.; Macdonald, Timothy L. published the artcile< Investigation into the structure-activity relationship of novel concentration dependent, dual action T-type calcium channel agonists/antagonists>, Synthetic Route of 52244-70-9, the main research area is structure activity calcium channel antagonist antitumor.

This paper describes the synthesis and biol. evaluation of a series of straight chain analogs of a compound (1) that was previously synthesized in our research program. These compounds, which are T-type calcium channel antagonists, exhibits potent anti-proliferative activity against a variety of cancer cells. A structure-activity relationship of these analogs against a variety of cancer cells has provided insight into a logical pharmacophore for this series of compounds Furthermore, this series of compounds has presented itself as a set of novel, concentration dependent, dual action agonists/antagonists for the T-type calcium channel.

Bioorganic & Medicinal Chemistry published new progress about Antitumor agents. 52244-70-9 belongs to class ethers-buliding-blocks, and the molecular formula is C11H16O2, Synthetic Route of 52244-70-9.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Li, Zijian; Sun, Wenxuan; Wang, Xianxu; Li, Luyang; Zhang, Yong; Li, Chao published the artcile< Electrochemically Enabled, Nickel-Catalyzed Dehydroxylative Cross-Coupling of Alcohols with Aryl Halides>, Computed Properties of 52244-70-9, the main research area is alkyl benzene aryl preparation electrochem; alc aryl bromide dehydroxylative cross coupling nickel catalyst.

As alcs. are ubiquitous throughout chem. science, this functional group represents a highly attractive starting material for forging new C-C bonds. Here, it is demonstrated that the combination of anodic preparation of alkoxy triphenylphosphonium ion and nickel catalyzed cathodic reductive cross-coupling provides an efficient method to construct C(sp2)-C(sp3) bonds, in which free alcs. and aryl bromides e.g., bromobenzene-both readily available chems. can be directly used as coupling partners yielding arene derivative e.g., I. This nickel catalyzed paired electrolysis reaction features a broad substrate scope bearing a wide gamut of functionalities, which was illustrated by the late-stage arylation of several structurally complex natural products and pharmaceuticals.

Journal of the American Chemical Society published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 52244-70-9 belongs to class ethers-buliding-blocks, and the molecular formula is C11H16O2, Computed Properties of 52244-70-9.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem