Day: November 7, 2022

On February 13, 2020, Na, Hyo Gyeong; Imran, Ali; Kim, Kyuneun; Han, Hong Sik; Lee, Young Jin; Kim, Myung-Jin; Yun, Chang-Soo; Jung, Young-Sik; Lee, Joo-Youn; Han, Soo Bong published an article.Name: Methyl 5-bromoindoline-7-carboxylate The title of the article was Discovery of a New Sulfonamide Hepatitis B Capsid Assembly Modulator. And the article contained the following:

Hepatitis B virus (HBV) remains a major health concern with 260 million people having been infected globally, and approx. 680,000 deaths have occurred annually from cirrhosis and liver cancer. The modulation of HBV capsid assembly has emerged as a promising therapeutic approach for curing chronic HBV infection. Small-mol. capsid assembly modulators (CAMs) can broadly be classified as heteroaryldihydropyrimidines and sulfamoylbenzamides (SBAs). SBAs are capsid activators that inhibit viral replication by achieving capsid assembly before polymerase encapsulation. Herein, we report a novel series of HBV CAMs based on NVR 3-778, a potent CAM belonging to the SBA class. The lead compound (KR-26556) exhibited improved pharmacol. activity and was examined through mol. docking studies. The experimental process involved the reaction of Methyl 5-bromoindoline-7-carboxylate(cas: 860624-88-0).Name: Methyl 5-bromoindoline-7-carboxylate

The Article related to hepatitis b capsid assembly antihbv mol docking studies, Pharmacology: Effects Of Antimicrobials and Parasiticides and other aspects.Name: Methyl 5-bromoindoline-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

Saravanan Prabhu, Nadarajan; Ayyadurai, Niraikulam; Deepankumar, Kanagavel; Chung, Taeowan; Lim, Dong Joon; Yun, Hyungdon published an article in 2012, the title of the article was Reassignment of sense codons: Designing and docking of proline analogs for Escherichia coli prolyl-tRNA synthetase to expand the genetic code.Computed Properties of 79815-20-6 And the article contains the following content:

Amino acyl-tRNA synthetases (AARSs) play a vital role in protein synthesis by catalyzing the aminoacylation of tRNA with its cognate amino acid. More recently, the endogenous AARS has been reported to recognize the close structural analogs of its cognate amino acid and helps in the in vitro and in vivo incorporation of analogs into recombinant proteins. By exploiting this substrate promiscuity, a number of non-canonical amino acids were successfully incorporated into the recombinant proteins. However, the incorporation efficiency varies with the different structural analogs depending on their reactivity towards the tRNA synthetases, which is due to the interaction and accommodation in the active site. Here, to analyze the incorporation efficiency of different proline analogs and to predict the active site residues responsible for the recognition, we carried out mol. docking study with the modeled Escherichia coli prolyl-tRNA synthetase (EcProRS). We also mapped the binding mode for the reported, virtually generated proline analogs and compared it with the reported crystal structure. The reactivity of the reported analogs was correlated with the biochem. data with respect to their interaction and orientation in the active site, which demonstrates the role of active site residues for the recognition of proline analogs and some new substrates such as chloro, bromo and iodoproline for EcProRS. We also rationally designed a EcProRS mutant for desired proline analog and validated by docking simulation with 3D model structure. The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).Computed Properties of 79815-20-6

The Article related to sense codon docking proline escherichia prolyl trna synthetase modeling, Enzymes: Separation-Purification-General Characterization and other aspects.Computed Properties of 79815-20-6

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

On May 10, 2012, Calderon, Felix; Vidal-Mas, Jaume; Burrows, Jeremy; de la Rosa, Juan Carlos; Jimenez-Diaz, Maria Belen; Mulet, Teresa; Prats, Sara; Solana, Jorge; Witty, Michael; Gamo, Francisco Javier; Fernandez, Esther published an article.Application In Synthesis of 6-Chloro-2,3-dihydro-1H-indole The title of the article was A Divergent SAR Study Allows Optimization of a Potent 5-HT2c Inhibitor to a Promising Antimalarial Scaffold. And the article contained the following:

From the 13 533 chem. structures published by GlaxoSmithKline in 2010, we identified 47 quality starting points for lead optimization. One of the most promising hits was the TCMDC-139046, a mol. presenting an indoline core, which is well-known for its anxiolytic properties by interacting with serotonin antagonist receptors 5-HT2. The inhibition of this target will complicate the clin. development of these compounds as antimalarials. Herein, we present the antimalarial profile of this series and our efforts to avoid interaction with this receptor, while maintaining a good antiparasitic potency. By using a double-divergent structure-activity relationship anal., we have obtained a novel lead compound harboring an indoline core. The experimental process involved the reaction of 6-Chloro-2,3-dihydro-1H-indole(cas: 52537-00-5).Application In Synthesis of 6-Chloro-2,3-dihydro-1H-indole

The Article related to sar antimalaria 5ht antagonist indole, tres cantos antimalarial set, divergent sar, indoline, malaria, open-innovation, Pharmacology: Effects Of Antimicrobials and Parasiticides and other aspects.Application In Synthesis of 6-Chloro-2,3-dihydro-1H-indole

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

On September 5, 2014, Chen, Hui; Wang, Jiang; Zhou, Shengbin; Liu, Hong published an article.COA of Formula: C9H9NO2 The title of the article was Asymmetric Synthesis of Chiral Heterocyclic Amino Acids via the Alkylation of the Ni(II) Complex of Glycine and Alkyl Halides. And the article contained the following:

An investigation into the reactivity profile of alkyl halides led to the development of a new method for the asym. synthesis of chiral heterocyclic amino acids. This protocol involves the asym. alkylation of the Ni(II) complex of glycine, [NiL] (H2L = N-[phenyl[2-[[[(2S)-1-(phenylmethyl)-2-pyrrolidinyl]carbonyl]amino]phenyl]methylene]-glycine), to form an intermediate, which then decomposes to form valuable chiral amino acids in high yields and with excellent diastereoselectivity. The chiral amino acids underwent a smooth intramol. cyclization process to afford the valuable chiral heterocyclic amino acids in high yields and enantioselectivities. This result paves the way for the development of a new synthetic method for chiral heterocyclic amino acids. The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).COA of Formula: C9H9NO2

The Article related to nickel pyrrolidinylcarbonylaminophenylmethyleneglycine complex preparation alkylation, asym preparation chiral heterocyclic amino acid, Inorganic Chemicals and Reactions: Coordination Compounds and other aspects.COA of Formula: C9H9NO2

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

On October 31, 2019, Zhang, Yin-Jun; Chen, Chang-Sheng; Liu, Hao-Tian; Chen, Jia-Lin; Xia, Ying; Wu, Shi-Jin published an article.Computed Properties of 79815-20-6 The title of the article was Purification, identification and characterization of an esterase with high enantioselectivity to (S)-ethyl indoline-2-carboxylate. And the article contained the following:

Objective: To purify an esterase which can selectively hydrolyze (R,S)-Et indoline-2-carboxylate to produce (S)-indoline-2-carboxylic acid and characterize its enzymic properties. Results: An intracellular esterase from Bacillus aryabhattai B8W22 was isolated and the purified protein was identified as a carboxylesterase by MALDI-TOF mass spectrometry. The enzyme (named BaCE) was 59.03-fold purification determined to be of approx. 35 kDa. Its specific activity was 0.574 U/mL with 20% yield. The enzyme showed maximum activity at pH 8.5 and 30°C and was stable at 20-30°C using pNPB as the substrate. The esterase demonstrated high enantioselectivity toward (S)-Et indoline-2-carboxylate with 96.55% e.e.p at 44.39% conversion, corresponding to an E value of 133.45. Conclusions: In this study, a new esterase BaCE with an apparent mol. mass of 35 kDa was purified to homogeneity for the first time. The esterase from Bacillus aryabhattai B8W22 was isolated with a purification more than 59-fold and a yield of 20% by anion exchange chromatog. and hydrophobic interaction chromatog. And its biochem. characterization were described in detail with pNPB as substrate. It displayed high enantioselectivity toward (S)-Et indoline-2-carboxylate. We next plan to highly express esterase BaCE in Escherichia coli, and apply it to industrial production of (S)-indoline-2-carboxylic acid. The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).Computed Properties of 79815-20-6

The Article related to esterase enantioselectivity ethyl indoline 2carboxylate, (s)-indoline-2-carboxylic acid, bacillus aryabhattai b8w22, characterization, esterase, purification, Enzymes: Separation-Purification-General Characterization and other aspects.Computed Properties of 79815-20-6

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

On December 15, 2019, Liu, Hong; Dai, Xing; He, Shuwen; Brockunier, Linda; Marcantonio, Karen; Ludmerer, Steven W.; Li, Fangbiao; Feng, Kung-I.; Nargund, Ravi P.; Palani, Anandan published an article.HPLC of Formula: 1256359-96-2 The title of the article was Design and evaluation of novel tetracyclic benzofurans as palm site allosteric inhibitors of HCV NS5B polymerase. And the article contained the following:

Hepatitis C virus (HCV) NS5B polymerase is a prime target for the development of direct-acting antiviral drugs for the treatment of chronic HCV infection. Several novel and potent HCV NS5B non-nucleoside inhibitors with unique tetracyclic benzofuran-based structures were prepared and evaluated. Similar to clin. developmental compound MK-8876, N-linked (compounds 1 and 2) and C-linked (compounds 3 and 4) tetracyclic structures maintained broad spectrum anti-replicon potency profiles and demonstrated moderate to excellent oral bioavailability and pharmacokinetic parameters across the three preclin. animal species. To better understand the importance of tetracyclic structures related to pan genotypic potency profiles especially against clin. relevant GT1a variants, the teracycles with different ring size were prepared and in vitro evaluations suggested compounds with six number ring have better overall potency profiles. The experimental process involved the reaction of 4-Fluoro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole(cas: 1256359-96-2).HPLC of Formula: 1256359-96-2

The Article related to tetracyclic benzofuran hepatitis virus ns5b polymerase mk8876, hepatitis c virus, mk-8876, ns5b polymerase, non-nucleoside inhibitors (nni), tetracyclic structure, Pharmacology: Effects Of Antimicrobials and Parasiticides and other aspects.HPLC of Formula: 1256359-96-2

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

On October 5, 2011, Isaji, Hisaaki; Nakazaki, Atsuo; Isobe, Minoru; Nishikawa, Toshio published an article.Reference of Methyl 2-(6-bromo-1H-indol-3-yl)acetate The title of the article was Concise synthesis of deformylflustrabromine, a marine indole alkaloid, through a 2-propynyl dicobalt hexacarbonyl complex. And the article contained the following:

Deformylflustrabromine, a marine indole alkaloid, was synthesized from 6-bromotryptamine, a plausible biosynthetic precursor, without protection of the amino group by a two-step reverse prenylation involving the Nicholas reaction and reductive decomplexation of the resulting acetylene dicobalt hexacarbonyl complex. The experimental process involved the reaction of Methyl 2-(6-bromo-1H-indol-3-yl)acetate(cas: 152213-63-3).Reference of Methyl 2-(6-bromo-1H-indol-3-yl)acetate

The Article related to deformylflustrabromine synthesis, Alkaloids: Alkaloids Containing One Nitrogen Atom In A Ring and other aspects.Reference of Methyl 2-(6-bromo-1H-indol-3-yl)acetate

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

On August 31, 1979, Kaneko, Chikara; Naito, Toshihiko; Hashiba, Marimi; Fujii, Harue; Somei, Masanori published an article.HPLC of Formula: 65417-22-3 The title of the article was Studies on the N-oxides of π-deficient N-heteroaromatics. Part XXXIII. A novel synthesis of revenine and related alkaloids by means of a photo-rearrangement reaction of 4-alkoxy-2-methylquinoline 1-oxides. And the article contained the following:

Photochem. rearrangement of methylquinoline oxides I (R = Me, allyl, Me2C:CHCH2, HCCCH2) in MeOH gave quinolinones II (R1 = H, R2 = Me; R1 = Me, R2 = H) and methoxyquinolinones III. II (R = Me2C:CHCH2, R1 = Me) is the alkaloid revenine from Rutaccous plants. Chlorination of 2-methyl-4-nitroquinoline oxide by concentrated HCl gave ∼80% 4-chloro-2-methylquinoline oxide, which was treated with ROH containing KOH to give ∼80% I. Photolysis of 4-(methoxycarbonyl)-2-methylquinoline oxide in MeOH gave 25.2% Me indole-3-carboxylate, 15.7% 4-(methoxycarbonyl)-3-methylcarbostyril, 12.3% Me 1-(1,1-dimethoxyethyl)indole-3-carboxylate, 11.5% Me 2-methylindole-3-carboxylate, and 4.3% 4-(methoxycarbonyl)-1-methylcarbostyril. The mechanism of the photorearrangement was discussed. The experimental process involved the reaction of Methyl 2-methyl-1H-indole-3-carboxylate(cas: 65417-22-3).HPLC of Formula: 65417-22-3

The Article related to revenine, alkenyloxyquinolone, rearrangement photochem alkoxyquinoline oxide, Alkaloids: Alkaloids Containing One Nitrogen Atom In A Ring and other aspects.HPLC of Formula: 65417-22-3

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

On July 31, 2014, Tanimori, Shinji; Inaba, Ushio; Kato, Yoshihiro; Ura, Haruna; Kashiwagi, Hiroaki; Nishimura, Takeshi; Kirihata, Mitsunori published an article.Related Products of 65417-22-3 The title of the article was Efficient synthesis of useful heterocycles via transition metal-catalyzed cascade processes. And the article contained the following:

This paper reports our recent results from synthesis of some useful heterocycles, for example oxazolidinones, indoles, and quinoxalinones, by transition metal-catalyzed cascade processes. The scope and limitations of these procedures and the reaction mechanism for formation of the heterocycles are also discussed. The experimental process involved the reaction of Methyl 2-methyl-1H-indole-3-carboxylate(cas: 65417-22-3).Related Products of 65417-22-3

The Article related to oxazolidinone indole quinoxalinone preparation transition metal catalyzed cascade process, Heterocyclic Compounds (More Than One Hetero Atom): General and other aspects.Related Products of 65417-22-3

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

Hsu, Shih-Fan; Ko, Chih-Wei; Wu, Yao-Ting published an article in 2011, the title of the article was Cobalt-Catalyzed Carbon-Carbon Bond Formation: Synthesis and Applications of Enantiopure Pyrrolidine Derivatives[1].Computed Properties of 79815-20-6 And the article contains the following content:

In the presence of cobalt catalysts and tetramethylethylenediamine (TMEDA), the iodine atom in (S)-2-(iodomethyl)pyrrolidines was replaced by an aryl or an alkynyl group from the corresponding Grignard reagent, and the coupling products were obtained in good to excellent yields (16 examples; 75-94% yields). The scope and limitations of this protocol were examined The stereochem. of the pyrrolidines was unaffected by the reaction conditions. The coupling products are important building blocks of phenanthroindolizidine alkaloids. Palladium-catalyzed formal [4+2] cycloaddition of 2,2′-diiodobiphenyl with the thus-generated (S)-2-(3-trimethylsilyl-2-propynyl)pyrrolidine gave a good yield of the desilylated phenanthrene, which was then converted into unnatural (+)-(S)-tylophorine by the Pictet-Spengler cyclization. The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).Computed Properties of 79815-20-6

The Article related to pyrrolidine enantiopure preparation cross coupling cobalt catalyzed, tylophorine synthesis cross coupling cobalt catalyzed, Alkaloids: Alkaloids Containing One Nitrogen Atom In A Ring and other aspects.Computed Properties of 79815-20-6

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