Day: October 10, 2022

Lu, Lin; Zheng, Zuoliang; Yang, Yongjie; Liu, Bo; Yin, Biaolin published the artcile< Access to Polycyclic Indol(en)ines via Base-Catalyzed Intramolecular Dearomatizing 3-Alkenylation of Alkynyl Indoles>, Reference of 4771-48-6, the main research area is indolylmethylpropynamide sodium methoxide catalyst diastereoselective regioselective dearomatization alkenylation spirocyclization; methylidene spiroindolepyrrolidinone preparation; methylidenyl dihydrospiroindolepyrrolidinone preparation; carbamoyl indolylmethylpropynamide sodium methoxide catalyst dearomatization alkenylation cyclization; tetrahydropyrrolopyrroloindole dione preparation diastereoselective regioselective.

Polycyclic indolines and indolenines were synthesized via base-catalyzed intramol. dearomatizing 3-alkenylation reactions of alkynyl indoles at room temperature The base enhanced the nucleophilicity of the carbon at the 3-position of the indole moiety, facilitating an exclusive 5-exo-dig cyclization reaction with the alkyne to form spiroindolenines I, III [R3 = Et, Pr, iso-Pr, etc]. The imine functionality of spiroindolenines I was undergo in-situ nucleophilic addition to form spiroindolines II [R1 = H, 4-Me, 5-Cl, etc.; R2 = Ph, 2-methylphenyl, 3-methylphenyl; R3 = Pr, benzyl, 4-methoxyphenyl; R4 = tert-Bu, cyclohexyl] when R was a carbamoyl group or reduction to form spiroindolines III when R was H.

Chinese Journal of Chemistrypublished new progress about Alkenes Role: PRP (Properties), SPN (Synthetic Preparation), PREP (Preparation). 4771-48-6 belongs to class indole-building-block, and the molecular formula is C10H9NO, Reference of 4771-48-6.

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Dong, Baobiao; Cong, Xuefeng; Hao, Na published the artcile< Silver-catalyzed regioselective deuteration of (hetero)arenes and α-deuteration of 2-alkyl azaarenes>, Synthetic Route of 93247-78-0, the main research area is arene silver catalyst regioselective deuteration.

A simple silver-catalyzed regioselective deuteration of (hetero)arenes and α-deuteration of 2-alkyl azaarenes was described. This strategy provides an efficient and practical avenue to access various deuterated electron-rich arenes, azaarenes and α-deuterated 2-alkyl azaarenes with good to excellent deuterium incorporation utilizing D2O as the source of deuterium atoms.

RSC Advancespublished new progress about Aromatic hydrocarbons Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 93247-78-0 belongs to class indole-building-block, and the molecular formula is C10H9NO2, Synthetic Route of 93247-78-0.

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Jiang, Yuqi; Xu, Jie; Yue, Kairui; Huang, Chao; Qin, Mengting; Chi, Dongyu; Yu, Qixin; Zhu, Yue; Hou, Xiaohan; Xu, Tongqiang; Li, Min; Chou, C. James; Li, Xiaoyang published the artcile< Potent Hydrazide-Based HDAC Inhibitors with a Superior Pharmacokinetic Profile for Efficient Treatment of Acute Myeloid Leukemia In Vivo>, Recommanded Product: 5-Fluoroindole-2-carboxylic acid, the main research area is hydrazide HDAC inhibitor pharmacokinetic myeloid leukemia.

As “”Michael acceptors”” may induce promiscuous responses in mammalian cells by reacting with various proteins, we modified the cinnamamide of our previous hydrazide-based HDAC inhibitors (HDACIs) to deactivate the Michael reaction. Representative compound 11h is 2-5 times more potent than lead compound 17 in both HDAC inhibitory activity (IC50 = 0.43-3.01 nM) and cell-based antitumor assay (IC50 = 19.23-61.04 nM). The breakthrough in the pharmacokinetic profile of 11h (oral bioavailability: 112%) makes it a lead-in-class oral active agent, validated in the in vivo anti-AML study (4 mg/kg p.o., TGI = 78.9%). Accumulated AcHH3 and AcHH4 levels in tumor tissue directly correlate with the in vivo efficacy, as panobinostat with lower AcHH3 and AcHH4 levels than 11h displays limited activity. To the best of our knowledge, this work contributes the first report of in vivo antitumor activity of hydrazide-based HDACIs. The outstanding pharmacokinetic/pharmacodynamic and antitumor activity of 11h could potentially extend the clin. application of current HDACIs.

Journal of Medicinal Chemistrypublished new progress about Acetylated histone H3 Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 399-76-8 belongs to class indole-building-block, and the molecular formula is C9H6FNO2, Recommanded Product: 5-Fluoroindole-2-carboxylic acid.

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Hu, Ren-Ming; Han, Dong-Yang; Li, Ning; Huang, Jie; Feng, Yu; Xu, Da-Zhen published the artcile< Iron-Catalyzed Direct Oxidative Alkylation and Hydroxylation of Indolin-2-ones with Alkyl-Substituted N-Heteroarenes>, Electric Literature of 20870-77-3, the main research area is iron catalyzed oxidative oxidative alkylation hydroxylation indolinone alkylheteroarene; N-heteroarenes; cross-coupling; iron; molecular oxygen; oxidation.

Presented herein is the first direct alkylation and hydroxylation reaction between two different C(sp3)-H bonds, indolin-2-ones and alkyl-substituted N-heteroarenes, through an oxidative cross-coupling reaction. The reaction is catalyzed by a simple iron salt under mild ligand-free and base-free conditions. The reaction is environmentally benign, employs air (mol. oxygen) as the terminal oxidant and oxygen source for the synthesis of O-containing compounds, and produces only water as the byproduct. Thus, e.g., indolin-2-one + 2-methylquinoline → I (93%) in presence of Fe(OAc)2.

Angewandte Chemie, International Editionpublished new progress about Alkylarenes Role: RCT (Reactant), RACT (Reactant or Reagent) (alkyl-substituted N-heteroarenes). 20870-77-3 belongs to class indole-building-block, and the molecular formula is C8H6ClNO, Electric Literature of 20870-77-3.

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Gopalaiah, Kovuru; Tiwari, Ankit published the artcile< Synthesis of (E)-3-Alkylideneindolin-2-ones by an Iron-Catalyzed Aerobic Oxidative Condensation of Csp3-H Bonds of Oxindoles and Benzylamines>, Related Products of 20870-77-3, the main research area is alkylideneindolinone preparation iron catalyst oxidative condensation oxindole benzylamine.

A novel synthetic route for the construction of (E)-3-alkylideneindolin-2-ones through iron-catalyzed aerobic oxidative condensation of oxindoles with benzylamines was developed. This oxidative reaction involves a sequence of C-H activation, amine self-condensation, nucleophilic addition, and C-C double bond formation. The synthetic importance of this protocol was demonstrated by preparing tyrosine kinase inhibitors, anticonvulsant and antitumor agents, and other valuable 3-alkylideneindolin-2-one derivatives Key intermediates were isolated and a plausible mechanistic pathway for the reaction is discussed.

European Journal of Organic Chemistrypublished new progress about Aralkyl amines Role: RCT (Reactant), RACT (Reactant or Reagent). 20870-77-3 belongs to class indole-building-block, and the molecular formula is C8H6ClNO, Related Products of 20870-77-3.

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Forster, Michael; Liang, Xiaojun Julia; Schroeder, Martin; Gerstenecker, Stefan; Chaikuad, Apirat; Knapp, Stefan; Laufer, Stefan; Gehringer, Matthias published the artcile< Discovery of a novel class of covalent dual inhibitors targeting the protein kinases BMX and BTK>, Formula: C7H5N3O2, the main research area is phenyl pyrrolopyridine prepare kinase inhibitor mol docking SAR; Bruton’s tyrosine kinase; Janus kinase 3; bone marrow tyrosine kinase on chromosome X; chemical probes; covalent inhibitors; tyrosine kinases.

Here a novel class of dual BMX/BTK inhibitors, which were designed from irreversible inhibitors of Janus kinase (JAK) 3 targeting a cysteine located within the solvent-exposed front region of the ATP binding pocket was presented. Structure-guided design exploiting the differences in the gatekeeper residues enabled the achievement of high selectivity over JAK3 and certain other kinases harboring a sterically demanding residue at this position. The most active compounds inhibited BMX and BTK with apparent IC50 values in the single digit nanomolar range or below showing moderate selectivity within the TEC family and potent cellular target engagement. These compounds represent an important first step towards selective chem. probes for the protein kinase BMX.

International Journal of Molecular Sciencespublished new progress about Acid chlorides Role: RCT (Reactant), RACT (Reactant or Reagent). 101083-92-5 belongs to class indole-building-block, and the molecular formula is C7H5N3O2, Formula: C7H5N3O2.

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Xu, Hai-Feng; Pan, You-Lu; Li, Gang-Jian; Hu, Xu-Yang; Chen, Jian-Zhong published the artcile< Copper(II)-Catalyzed Direct C-H (Hetero)arylation at the C3 Position of Indoles Assisted by a Removable N,N-Bidentate Auxiliary Moiety>, SDS of cas: 399-76-8, the main research area is arylated indole regioselective preparation; indole arylboronic ester arylation copper catalyst.

The regioselective arylation of inert C3-H bonds in indoles reacting with arylboronates via effective copper-mediated catalysis with the aid of a facile and removable 2-pyridinylisopropyl (PIP) group without ligand participation was reported. This newly established method features high compatibility with diverse functional groups between coupling partners, including both indole substrates and arylboron reagents, consequentially leading to operational simplicity and providing access to generate the desired arylated products I [R = H, 4-Me, 5-MeO, 6-Br, etc.; R1 = Me, Bn; Ar = Ph, 2-thienyl, 3-pyridyl, etc.] in good to excellent yields of up to 97%. Synthetically, the PIP-derived amide moiety could subsequently be readily removed under mild reaction conditions to produce useful indolecarboxylic acids for further transformation.

Journal of Organic Chemistrypublished new progress about Amides, secondary Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 399-76-8 belongs to class indole-building-block, and the molecular formula is C9H6FNO2, SDS of cas: 399-76-8.

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Prasad, Bagineni; Das, Rabindra Nath; Jamroskovic, Jan; Kumar, Rajendra; Hedenstroem, Mattias; Sabouri, Nasim; Chorell, Erik published the artcile< The relation between position and chemical composition of bis-indole substituents determines their interactions with G-quadruplex DNA>, Application of C10H9NO2, the main research area is human DNA G quadruplex sidechain bis indole drug target; DNA structures; G-Quadruplexes; bis-indole; drug design; nitrogen heterocycles.

G-quadruplex (G4) DNA structures are linked to fundamental biol. processes and human diseases, which has triggered the development of compounds that affect these DNA structures. However, more knowledge is needed about how small mols. interact with G4 DNA structures. This study describes the development of a new class of bis-indoles (3,3-diindolyl-Me derivatives) and detailed studies of how they interact with G4 DNA using orthogonal assays, biophys. techniques, and computational studies. This revealed compounds that strongly bind and stabilize G4 DNA structures, and detailed binding interactions which for example, show that charge variance can play a key role in G4 DNA binding. Furthermore, the structure-activity relationships generated opened the possibilities to replace or introduce new substituents on the core structure, which is of key importance to optimize compound properties or introduce probes to further expand the possibilities of these compounds as tailored research tools to study G4 biol.

Chemistry – A European Journalpublished new progress about Animal gene, c-myc Role: BSU (Biological Study, Unclassified), PRP (Properties), BIOL (Biological Study). 93247-78-0 belongs to class indole-building-block, and the molecular formula is C10H9NO2, Application of C10H9NO2.

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Cheng, Zhiyang; Qin, Qingwen; Jia, Hui; Li, Juan; Yan, Fanyong; Meng, Xia; Wang, Jie published the artcile< Scale evaluation and antiscalant testing based on fluorescent probe technology in RO process>, COA of Formula: C30H36N4O2, the main research area is aminotrimethylene phosphonic acid fluorescent probe reverse osmosis.

Inventing the technol. based on fluorescent probes to detect antiscalants in reverse osmosis (RO) concentrated water is of great significance for guiding the use of antiscalant and the control of scale. In this study, Amino trimethylene phosphonic acid (ATMP) was taken as the representative of the antiscalant, and a new fluorescent probe for ATMP detection was designed and synthesized. The new fluorescent probe showed high accuracy for ATMP detection (R2 > 0.94) and resistance to the interference of ions (change rate <3%). Further, the use of probe to detect the antiscalant in RO concentrate and realize the evaluation of the scaling phenomenon was carried out. The model of the relationship between the probe fluorescence intensity and the concentration of precipitated ions was established to analyze the scale evaluation mechanism of the probe. Meanwhile, Critical fluorescence intensity (CFI) was introduced for scale evaluation. The results showed that the new probe could accurately judge the formation of scale under the condition of different antiscalant concentrations, and 926 ± 20 a.u. was judged as CFI for scaling evaluation. Finally, results of the new probe detection in RO scale evaluation test were consistent with the membrane flux and SEM detection, indicating that the probe can accurately evaluate scale during the RO operation. This research can provide tech. support for the precise application of antiscalants and scale inhibition. Journal of Membrane Sciencepublished new progress about Electric conductivity. 950846-89-6 belongs to class indole-building-block, and the molecular formula is C30H36N4O2, COA of Formula: C30H36N4O2.

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Sreenivasa Rao, Ramana; Shajan, Femil Joseph; Reddy, D. Srinivasa published the artcile< A route to access imidazol[1,5-a]indole-1,3-diones and pyrrolo[1,2-c]imidazole-1,3-diones>, Quality Control of 399-76-8, the main research area is imidazolindoledione pyrroloimidazoledione preparation; indole pyrrole carboxylic acid aniline carbonyldiimidazole microwave irradiation.

A novel and practical route to synthesize imidazol[1,5-a]indoles I (R = 3,5-Cl, 4-OCF3, 4-iPr, etc.) and pyrrolo[1,2-c]imidazoles via N-H functionalization has been developed. Indole-2-carboxylic acid or pyrrole-2-carboxylic acid with diverse aniline groups and carbonyldiimidazole (CDI), in the presence of a base under microwave conditions, resulted in imidazol[1,5-a]indoles and pyrrolo[1,2-c]imidazoles, resp. The present method is free of work-up and no need for column chromatog. Both title scaffolds can serve as useful heterocyclic scaffolds in medicinal chem. as such, or they can be used as building blocks to construct different classes of useful compounds

Organic & Biomolecular Chemistrypublished new progress about Anilines Role: RCT (Reactant), RACT (Reactant or Reagent). 399-76-8 belongs to class indole-building-block, and the molecular formula is C9H6FNO2, Quality Control of 399-76-8.

Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles