Category: indole-building-block

On April 30, 2006, Sun, Suya; Jia, Youzhi; Zeng, Ning; Li, Famei published an article.Electric Literature of 79815-20-6 The title of the article was Chiral ligand-exchange chromatography for separation of three stereoisomers of octahydroindole-2-carboxylic acid. And the article contained the following:

A novel HPLC method is described for separation of the three stereoisomers of octahydroindole-2-carboxylic acid (Oic), an intermediate in the synthesis of perindopril. The chiral mobile phase contained the complex of Cu(II) with the optically active selector L-phenylalaninamide (L-PheA), and an ion-pair reagent, sodium 1-octanesulfonate. The effects of the concentrations of the Cu(II)-L-PheA complex and the ion-pair reagent, mobile phase pH, ionic strength, acetonitrile content, and column temperature were studied. Satisfactory resolution was achieved for three stereoisomers, RRR-, SSS-, and SRR-Oic. The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).Electric Literature of 79815-20-6

The Article related to octahydroindolecarboxylic acid stereoisomer chiral ligand exchange chromatog, Organic Analytical Chemistry: Separations and other aspects.Electric Literature 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 September 30, 2007, Zhang, Yingru; Dai, Jun; Wang-Iverson, David B.; Tymiak, Adrienne A. published an article.Name: H-Idc-OH The title of the article was Simulated moving columns technique for enantioselective supercritical fluid Chromatography. And the article contained the following:

This article describes a very useful extension of an unique column switching technique called Simulated Moving Columns (SMC) that was previously reported for chiral HPLC. SMC uses two or three short chiral columns connected in series, and enables the unresolved enantiomers to sep. repeatedly and exclusively through each of the columns until sufficient resolution is attained. The technique is significantly enhanced through the use of supercritical fluid chromatog. (SFC). The supercritical or near critical carbon dioxide (CO2) used in the mobile phase of SFC possesses the properties of a liquid as well as a gas, and usually results in much sharper peaks compared to HPLC. Consequently, by combining SMC with SFC (SMC-SFC), the authors were able to dramatically increase the number of SMC cycles with significantly less band broadening compared to HPLC. For the 1st time, an enantioselective SFC separation was demonstrated by increasing the column from the actual 20 cm length to reach a half meter virtual length with remarkably enhanced efficiency. Off-column band broadening resulting from a two-column SMC system was measured, and its impact on the enantioselectivity of SMC-SFC is much less than in SMC-HPLC. The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).Name: H-Idc-OH

The Article related to enantioselective supercritical fluid chromatog simulated moving column, Organic Analytical Chemistry: Separations and other aspects.Name: H-Idc-OH

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, 2018, Kumar, Nadavala Siva; Sreenivasulu, Vudagandla; Ramachandra, Bondigalla; Asif, Mohammad; Ibrahim, Ahmed A. published an article.Application of 79815-20-6 The title of the article was A stability-indicating LC-MS method for determination of perindopril and its process related impurities. And the article contained the following:

Perindopril erbumine belongs to the member of angiotensin-converting enzyme inhibitors group used in the treatment of heart failure and hypertension. Asimple and highly sensitive LC-MS method has been developed for the simultaneous determination of three process-related impurities (L-norvaline, L-norvaline Et ester HCl, and (S)-indoline-2-carboxylic acid) in perindopril. Samples were separated using 5 mM ammonium formate (A) and acetonitrile/methanol (B) as the mobile phase on a Symmetry C18 column (75 mm × 4.6 mm, 3.5 μm) using gradient elution mode at a flow rate of 0.6 mL/min. The proposed method was validated as per ICH guidelines and can be used for quality testing of perindopril and determining its process-related impurities in pharmaceuticals. The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).Application of 79815-20-6

The Article related to perindopril impurity analysis lc ms stability, Pharmaceutical Analysis: Synthetic Organic Compounds and other aspects.Application 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 August 18, 2016, Albrecht, Brian K.; Gehling, Victor C.; Harmange, Jean-Christophe; Vaswani, Rishi G. published a patent.Category: indole-building-block The title of the patent was Preparation of substituted indolecarboxamides as modulators of methyl modifying enzymes. And the patent contained the following:

The title compounds I [R1 = alkyl, alkoxy, or OCHF2; R2 = H, Me, Et, thiazolyl, etc.; R3, R31, R4, R41 = H, CF3, Me, Et, etc. (provided that at least one of R3, R31, R4 and R41 is not H); or R3 and R4 or R31 and R41 are taken together form a Ph or cyclohexyl ring], useful for treating a variety of diseases, disorders or conditions associated with Me modifying enzymes, notably EZH1 and EZH2, were prepared E.g., a multi-step synthesis of II, starting from Me 2-methyl-1-[1-(1-methyl-2-oxopiperidin-4- yl)ethyl]-1H-indole-3-carboxylate, was described. Exemplified compounds I were tested for their EZH2 activity (data given). Also provided are pharmaceutical compositions comprising compounds I, pharmaceutically acceptable salts thereof, and methods for their use in treating one or more diseases, disorders or conditions, associated with Me modifying enzymes, such as cancer. The experimental process involved the reaction of Methyl 2-methyl-1H-indole-3-carboxylate(cas: 65417-22-3).Category: indole-building-block

The Article related to indolecarboxamide pyridinylmethyl preparation modulator methyl modifying enzyme ezh1 ezh2, antitumor indolecarboxamide pyridinylmethyl preparation ezh1 ezh2 modulator, Heterocyclic Compounds (One Hetero Atom): Pyridines and other aspects.Category: indole-building-block

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, Hua-Jie; Zhong, Xiu-Mei; Yu, Jie; Zhang, Ying; Zhang, Xinhao; Wu, Yun-Dong; Gong, Liu-Zhu published an article in 2019, the title of the article was Assembling a Hybrid Pd Catalyst from a Chiral Anionic CoIII Complex and Ligand for Asymmetric C(sp3)-H Functionalization.HPLC of Formula: 52537-00-5 And the article contains the following content:

An unusual hybrid palladium catalyst containing an anionic chiral CoIII complex and a chiral phosphoramidite ligand shows a high capacity for catalyzing asym. thioamide-directed C(sp3)-H arylation and delivers excellent yield and enantioselectivity (up to 99% yield, 99% ee). Significant synergy between the chiral ligand and the anion in terms of stereochem. control was observed Mechanistic studies revealed both the nature of the C-H activation and the origin of the enantioselectivity. The experimental process involved the reaction of 6-Chloro-2,3-dihydro-1H-indole(cas: 52537-00-5).HPLC of Formula: 52537-00-5

The Article related to palladium catalyst chiral ligand asym functionalization arylation, c−h functionalization, chiral phosphoramidites, cobalt, palladium, synergistic effects, Heterocyclic Compounds (One Hetero Atom): Pyridines and other aspects.HPLC of Formula: 52537-00-5

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 8, 2014, Tanaka, Tadashi; Konishi, Yoshitake; Kubo, Daisuke; Fujino, Masataka; Doi, Issei; Nakagawa, Daisuke; Murakami, Tatsuya; Yamakawa, Takayuki published a patent.Name: 6-Fluoro-5-nitro-1H-indole The title of the patent was Preparation of (hetero)arylamines having keratinocyte proliferation inhibitory activity. And the patent contained the following:

A novel amine derivative expressed by general formula (I) (in the formula: G1, G2, and G3 are the same or different and represent CH or a nitrogen atom; R1 represents a chlorine atom, an optionally-substituted C3-8 cycloalkyl group, or the like; R2 represents -COOR5 (in the formula, R5 represents a hydrogen atom or a carboxyl protective group), or the like; R3 represents a hydrogen atom, or the like; and R4 represents an optionally-substituted condensed bicyclic hydrocarbon group, an optionally-substituted bicyclic heterocyclic group, or the like), or a salt thereof is useful in procedures such as the treatment or prevention of conditions related to excessive keratinocyte proliferation. Thus, heteroarylamines, prepared by several steps, inhibited the proliferation of human neonatal epidermal keratinocytes and TNFα formation in LPS-stimulated Raw264.7 cells. The compounds also inhibited TPA-induced ear thickening in mice. The experimental process involved the reaction of 6-Fluoro-5-nitro-1H-indole(cas: 1609131-18-1).Name: 6-Fluoro-5-nitro-1H-indole

The Article related to heteroarylamine preparation keratinocyte proliferation tnfalpha inhibitor, tumor necrosis factor alpha inhibitor heteroarylamine preparation, Heterocyclic Compounds (One Hetero Atom): Pyridines and other aspects.Name: 6-Fluoro-5-nitro-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 December 23, 2009, Kamikubo, Takashi; Miura, Masanori; Okuda, Takao; Maki, Keisuke; Hirayama, Fukushi; Moritomo, Ayako; Komiya, Yuriko; Matsuura, Keisuke; Ibuka, Ryotaro published a patent.SDS of cas: 52537-00-5 The title of the patent was Preparation of 2-pyridone derivatives as EP4 receptor agonists for treatment of peripheral arterial disease. And the patent contained the following:

The title compounds I [wherein L1 and L2 = independently alkylene, alkenylene, etc.; R1 = substituted aryl or heteroaryl; R2 = (un)substituted alkylamino, heteroarylamino, etc.; R3 – R5 = independently H, halo, CN, alkyl, etc.] or pharmaceutically acceptable salts thereof are prepared as prostanoid receptors type EP4 (EP4) inhibitors for the treatment of peripheral arterial disease. For example, the compound II was prepared in a multi-step synthesis. II inhibited EP4 receptor with IC50 value of 0.52 nM in rat. The experimental process involved the reaction of 6-Chloro-2,3-dihydro-1H-indole(cas: 52537-00-5).SDS of cas: 52537-00-5

The Article related to pyridone preparation prostanoid receptor agonist treatment peripheral arterial disease, prostanoid receptor ep4 agonist preparation pyridone, Heterocyclic Compounds (One Hetero Atom): Pyridines and other aspects.SDS of cas: 52537-00-5

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 15, 2013, Albrecht, Brian K.; Audia, James Edmund; Cook, Andrew S.; Dakin, Les A.; Duplessis, Martin; Gehling, Victor S.; Harmange, Jean-Christophe; Naveschuk, Christopher G.; Vaswani, Rishi G. published a patent.Synthetic Route of 65417-22-3 The title of the patent was Preparation of heteroaryl amides as modulators of methyl modifying enzymes. And the patent contained the following:

The title compounds I [Z = CR2 or N; X1, X2 = N, CR3; X3 = N, CR6; no more than one of X1-X3 = N; R1, R2 = H, halo, OH, CN, etc.; or R1 and R2 are taken together with atoms to which they are bound to form (hetero)aryl, heterocyclyl, cycloalkyl; R3, R6 = H, halo, CN, etc.; or two R3 are taken together with atoms to which they are bound to form (hetero)aryl, heterocyclyl, cycloalkyl; R = (hetero)aryl, heterocyclyl, cycloalkyl, etc.], useful as agents for modulating Me modifying enzymes, were prepared Thus, reacting 3-(aminomethyl)-4,6-dimethylpyridin-2(1H)-one with 5-methyl-1-phenyl-1H-pyrazole-4-carboxylic acid afforded 26% II. Exemplified compounds I were tested against EZH2 and Y641N EZH2 mutant enzymes (data given for representative compounds I). Pharmaceutical composition comprising I is disclosed. The experimental process involved the reaction of Methyl 2-methyl-1H-indole-3-carboxylate(cas: 65417-22-3).Synthetic Route of 65417-22-3

The Article related to heteroaryl amide preparation methyl modifying enzyme modulator antitumor, mutant ezh2 protein cancer treatment heteroaryl amide preparation, Heterocyclic Compounds (One Hetero Atom): Pyridines and other aspects.Synthetic Route 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

On February 1, 2010, Mavunkel, Babu J.; Perumattam, John J.; Tan, Xuefei; Luedtke, Gregory R.; Lu, Qing; Lim, Don; Kizer, Darin; Dugar, Sundeep; Chakravarty, Sarvajit; Xu, Yong-jin; Jung, Joon; Liclican, Albert; Levy, Daniel E.; Tabora, Jocelyn published an article.HPLC of Formula: 256935-86-1 The title of the article was Piperidine-based heterocyclic oxalyl amides as potent p38α MAP kinase inhibitors. And the article contained the following:

The design and synthesis of a new class of p38α MAP kinase inhibitors based on 4-fluorobenzylpiperidine heterocyclic oxalyl amides are described. Many of these compounds showed low-nanomolar activities in p38α enzymic and cell-based cytokine TNFα production inhibition assays. The optimal linkers between the piperidine and the oxalyl amide were found to be [6,5] fused ring heterocycles. Substituted indoles and azaindoles were favored structural motifs in the cellular assay. The experimental process involved the reaction of 6-Chloro-1H-indole-5-carboxylic acid(cas: 256935-86-1).HPLC of Formula: 256935-86-1

The Article related to piperidine based heterocyclic oxalyl amide preparation antiinflammatory, p38alpha map kinase inhibitor, Heterocyclic Compounds (One Hetero Atom): Pyridines and other aspects.HPLC of Formula: 256935-86-1

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

Le, Truong-Giang; Pham, Hoai-Thu; Martin, James P.; Chataigner, Isabelle; Renaud, Jean-Luc published an article in 2020, the title of the article was Organocatalyzed regioselective and enantioselective synthesis of 1,4- and 1,2-dihydropyridines.Electric Literature of 79815-20-6 And the article contains the following content:

Herein, the first examples of asym. organocatalyzed synthesis of 1,2-dihydropyridines, affording enantioselective access to and partially solving regioselectivity challenges in the synthesis of dihydropyridines is reported. It has been demonstrated that through modification of organocatalysts both 1,2- and 1,4-dihydropyridines (1,2- and 1,4-DHPs) can be obtained with high regioselectivity (ratio of 1,2-DHP/1,4-DHP from 95/5 to 0/100) and enantioselectivity (33% ee for 1,2-DHPs and up to 98% ee for 1,4-DHPs) in good yields (up to 87%). The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).Electric Literature of 79815-20-6

The Article related to dihydropyridine preparation green chem regioselective enantioselective organocatalyst, Heterocyclic Compounds (One Hetero Atom): Pyridines and other aspects.Electric Literature 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