Tag: M.W=150-200

Tang, Pan; Wei, You-Yuan; Wen, Long; Ma, Hao-Jie; Yang, Yi; Jiang, Yan published the artcile< MgI2-Catalyzed Nucleophilic Ring-Opening Reactions of Donor-Acceptor Cyclopropanes with Indoline-2-thiones>, COA of Formula: C8H6ClNO, the main research area is gamma indolylthio butyric acid preparation chemoselective magnesium iodide; donor acceptor cyclopropane indoline thione nucleophilic ring opening.

MgI2-catalyzed nucleophilic ring-opening reactions of donor-acceptor cyclopropanes with indoline-2-thiones as easy-to-handle sulfur nucleophiles were investigated. A series of functionalized γ-indolylthio butyric acid derivatives were synthesized in good to excellent yields under mild reaction conditions. Furthermore, the thioether functionalized ring-opening products could be transformed to sulfone and methionine analogs.

Journal of Organic Chemistry published new progress about Chemoselectivity. 20870-77-3 belongs to class indole-building-block, and the molecular formula is C8H6ClNO, COA of Formula: C8H6ClNO.

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

Sayago, Francisco J.; Calaza, M. Isabel; Jimenez, Ana I.; Cativiela, Carlos published the artcile< A straightforward route to enantiopure α-substituted derivatives of (2S,3aS,7aS)-octahydroindole-2-carboxylic acid>, Recommanded Product: (2R,3aS,7aS)-Octahydro-1H-indole-2-carboxylic acid, the main research area is indolecarboxylic acid octahydro stereoselective alkylation.

High yielding and remarkably selective alkylations of a suitably protected derivative of (2S,3aS,7aS)-octahydroindole-2-carboxylic acid are described. The fused bicyclic structure of this proline analog greatly influences the stereochem. outcome of direct alkylation reactions taking place at the α-carbon and provides access to α-substituted analogs with retention of the configuration. The overall procedure allows the preparation of enantiopure α-substituted derivatives of this Oic isomer, suitably protected for their incorporation into peptides, in a straightforward manner.

Tetrahedron published new progress about Alkylation, stereoselective. 145513-91-3 belongs to class indole-building-block, and the molecular formula is C9H15NO2, Recommanded Product: (2R,3aS,7aS)-Octahydro-1H-indole-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

Lorthiois, Edwige; Roache, James; Barnes-Seeman, David; Altmann, Eva; Hassiepen, Ulrich; Turner, Gordon; Duvadie, Rohit; Hornak, Viktor; Karki, Rajeshri G.; Schiering, Nikolaus; Weihofen, Wilhelm A.; Perruccio, Francesca; Calhoun, Amy; Fazal, Tanzina; Dedic, Darija; Durand, Corinne; Dussauge, Solene; Fettis, Kamal; Tritsch, Fabien; Dentel, Celine; Druet, Adelaide; Liu, Donglei; Kirman, Louise; Lachal, Julie; Namoto, Kenji; Bevan, Douglas; Mo, Rose; Monnet, Gabriela; Muller, Lionel; Zessis, Richard; Huang, Xueming; Lindsley, Loren; Currie, Treeve; Chiu, Yu-Hsin; Fridrich, Cary; Delgado, Peter; Wang, Shuangxi; Hollis-Symynkywicz, Micah; Berghausen, Joerg; Williams, Eric; Liu, Hong; Liang, Guiqing; Kim, Hyungchul; Hoffmann, Peter; Hein, Andreas; Ramage, Paul; D’Arcy, Allan; Harlfinger, Stefanie; Renatus, Martin; Ruedisser, Simon; Feldman, David; Elliott, Jason; Sedrani, Richard; Maibaum, Juergen; Adams, Christopher M. published the artcile< Structure-Based Design and Preclinical Characterization of Selective and Orally Bioavailable Factor XIa Inhibitors: Demonstrating the Power of an Integrated S1 Protease Family Approach>, Name: Methyl 1H-indole-7-carboxylate, the main research area is anticoagulant FXIa inhibitors ADME drug design orally bioavailable.

The serine protease factor XI (FXI) is a prominent drug target as it holds promise to deliver efficacious anticoagulation without an enhanced risk of major bleeds. Several efforts have been described targeting the active form of the enzyme, FXIa. Herein, we disclose our efforts to identify potent, selective, and orally bioavailable inhibitors of FXIa. Compound 1, identified from a diverse library of internal serine protease inhibitors, was originally designed as a complement factor D inhibitor and exhibited submicromolar FXIa activity and an encouraging absorption, distribution, metabolism, and excretion (ADME) profile while being devoid of a peptidomimetic architecture. Optimization of interactions in the S1, S1β, and S1′ pockets of FXIa through a combination of structure-based drug design and traditional medicinal chem. led to the discovery of compound 23(I) with subnanomolar potency on FXIa, enhanced selectivity over other coagulation proteases, and a preclin. pharmacokinetics (PK) profile consistent with bid dosing in patients.

Journal of Medicinal Chemistry published new progress about Anticoagulants. 93247-78-0 belongs to class indole-building-block, and the molecular formula is C10H9NO2, Name: Methyl 1H-indole-7-carboxylate.

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>, Application of C10H9NO2, 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 Advances published 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, 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

Caspar, Yvan; Jeanty, Matthieu; Blu, Jerome; Burchak, Olga; Le Pihive, Emmanuelle; Maigre, Laure; Schneider, Dominique; Jolivalt, Claude; Paris, Jean-Marc; Hequet, Arnaud; Minassian, Frederic; Denis, Jean-Noel; Maurin, Max published the artcile< Novel synthetic bis-indolic derivatives with antistaphylococcal activity, including against MRSA and VISA strains>, Quality Control of 23077-43-2, the main research area is bis indole derivative preparation antibacterial structure activity Staphylococcus; antibiotics; bis-indoles; drug development; drug susceptibility testing; efflux pumps; staphylococci.

Objectives: The authors report the synthesis, antibacterial activity and toxicity of 24 bis-indolic derivatives obtained during the development of new ways of synthesis of marine bis-indole alkaloids from the spongotine, topsentin and hamacanthin classes. Methods: Innovative ways of synthesis and further structural optimizations led to bis-indoles presenting either the 1-(1H-indol-3′-yl)-1,2-diaminoethane unit or the 1-(1H-indol-3-yl)ethanamine unit. MIC determination was performed for reference and clin. strains of Staphylococcus aureus and CoNS species. MBC, time-kill kinetics, solubility, hydrophobicity index, plasma protein-binding and cytotoxicity assays were performed for lead compounds Inhibition of the S. aureus NorA efflux pump was also tested for bis-indoles with no antistaphylococcal activity. Results: Lead compounds were active against both S. aureus and CoNS species, with MICs between 1 and 4 mg/L. Importantly, the same MICs were found for MRSA and vancomycin-intermediate S. aureus strains. Early concentration-dependent bactericidal activity was observed for lead derivatives Compounds with no intrinsic antibacterial activity could inhibit the S. aureus NorA efflux pump, which is involved in resistance to fluoroquinolones. At 0.5 mg/L, the most effective compound led to an 8-fold reduction of the ciprofloxacin MIC for the SA-1199B S. aureus strain, which overexpresses NorA. However, the bis-indole compounds displayed a high hydrophobicity index and high plasma protein binding, which significantly reduced antibacterial activity. Conclusions: The authors have synthesized and characterized novel bis-indole derivatives as promising candidates for the development of new antistaphylococcal treatments, with preserved activity against MDR S. aureus strains.

Journal of Antimicrobial Chemotherapy published new progress about Antibacterial agent resistance. 23077-43-2 belongs to class indole-building-block, and the molecular formula is C9H6FNO2, Quality Control of 23077-43-2.

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

Rassi, Somayeh; Baharfar, Robabeh published the artcile< Synthesis of indole based amides using immobilized lipase on graphene oxide (GO@lipase) as a retrievable heterogeneous nano biocatalyst>, SDS of cas: 399-76-8, the main research area is lipase immobilized graphene oxide catalyst preparation thermal stability; indolyl carboxylic acid benzaldehyde alkyl isocyanide lipase Passerini reaction; phenyl alkylamino oxoethyl indolyl carboxylate preparation green chem.

A green and efficient one-pot procedure to achieved indole based amides using Passerini reaction involving indole-2-carboxylic acids, benzaldehydes and alkyl isocyanides in the presence of immobilized lipase on graphene oxide as a heterogeneous nano biocatalyst was developed. This method has the advantages of simple operation, mild reaction conditions and good to excellent yields. The features of this method are highlighted by using a retrievable nanostructure catalyst. This process was asserted to be efficient in the synthesis of indole derivatives

Polyhedron published new progress about Amides Role: BPN (Biosynthetic Preparation), BIOL (Biological Study), 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

Luo, Yang-Hui; Sun, Bai-Wang published the artcile< An investigation into the substituent effect of halogen atoms on the crystal structures of indole-3-carboxylic acid (ICA)>, Application of C9H6FNO2, the main research area is halogen atom crystal structure indolecarboxylic acid ICA.

A study into the substituent effect of halogen atoms (F, Cl, Br) on the crystal structure of indole-3-carboxylic acid (ICA) was prepared The study was done through the aspect of crystal structure, intermol. interactions and π···π stacking motifs with the assistance of IR spectra, elemental analyses, NMR spectra, DSC, thermogravimetric analyses (TGA) and hot stage microscopy (HSM) measurements. The different kinds of halogen atoms and the different substituted positions have a significant effect on the crystal structures, mol. π···π stacking motifs and the kinds of intermol. interactions. The authors further correlated the m.ps. of the ICAs with the H-H, O-H and X-H (X = F, Cl, Br) interactions, and found a pos. correlation between them.

CrystEngComm published new progress about Correlation analysis. 23077-43-2 belongs to class indole-building-block, and the molecular formula is C9H6FNO2, Application of C9H6FNO2.

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

Lai, Yi-Huan; Wu, Run-Shi; Huang, Jie; Huang, Jun-Yu; Xu, Da-Zhen published the artcile< Iron-Catalyzed Oxidative Coupling of Indoline-2-ones with Aminobenzamides via Dual C-H Functionalization>, Quality Control of 20870-77-3, the main research area is oxindole aminobenzamide iron catalyst oxidative coupling reaction; spioroindolinequinazoline dione preparation.

We describe an unprecedented dual C-H functionalization of indolin-2-one via an oxidative C(sp3)-H/N-H/X-H (X = N, C, S) cross-coupling protocol, which was catalyzed by a simple iron salt under mild and ligand-free conditions and employs air (mol. oxygen) as the terminal oxidant. This method was readily applicable for the construction of tetrasubstituted carbon centers from methylenes and provides a wide variety of spiro N-heterocyclic oxindoles.

Organic Letters published new progress about Amino amides Role: RCT (Reactant), RACT (Reactant or Reagent). 20870-77-3 belongs to class indole-building-block, and the molecular formula is C8H6ClNO, Quality Control 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

Zhang, Ming-Zhi; Chen, Qiong; Xie, Cai-Hong; Mulholland, Nick; Turner, Sarah; Irwin, Dianne; Gu, Yu-Cheng; Yang, Guang-Fu; Clough, John published the artcile< Synthesis and antifungal activity of novel streptochlorin analogues>, Application In Synthesis of 4771-48-6, the main research area is streptochlorin analog preparation antifungal; Antifungal activity; Natural product; Streptochlorin; Structure–activity relationships; Synthesis.

Streptochlorin, first isolated as a new antibiotic in 1988 from the lipophilic extracts of the mycelium of a Streptomyces sp., is an indole natural product with a variety of biol. activities. Based on the methods developed for the synthesis of pimprinine in our laboratory, we have synthesized a series of indole-modified streptochlorin analogs and measured their activities against seven phytopathogenic fungi. Some of the analogs displayed good activity in the primary assays, and seven compounds were identified as the most promising candidates for further study. Structural optimization is still ongoing with the aim of discovering synthetic analogs with improved antifungal activity.

European Journal of Medicinal Chemistry published new progress about Fungicides. 4771-48-6 belongs to class indole-building-block, and the molecular formula is C10H9NO, Application In Synthesis 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

Zhang, Yan; Hu, Zhe-Yao; Li, Xin-Chang; Guo, Xun-Xiang published the artcile< Copper-Catalyzed Decarboxylative N-Arylation of Indole-2-Carboxylic Acids>, Name: 5-Fluoroindole-2-carboxylic acid, the main research area is aryl indole preparation; indole carboxylic acid aryl halide copper catalyst decarboxylative arylation.

A novel decarboxylative N-arylation of indole-2-carboxylic acids with aryl halides was developed. The reaction proceeded efficiently in the presence of Cu2O as the catalyst to give the corresponding N-aryl indoles I [R1 = 4-Me, 5-F, 6-MeO, etc.; R2 = Ph, 3-FC6H4, 4-ClC6H4, etc.] in high yields. This synthetic method showed good functional group tolerance and offered an alternative route to construct N-aryl indoles.

Synthesis published new progress about Aryl bromides Role: RCT (Reactant), RACT (Reactant or Reagent). 399-76-8 belongs to class indole-building-block, and the molecular formula is C9H6FNO2, Name: 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