indole-building-block | - Page 258 of 1434

Jiang, Yuqi’s team published research in Journal of Medicinal Chemistry in 2022-01-13 | 399-76-8

Journal of Medicinal Chemistry published 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, HPLC of Formula: 399-76-8.

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>, HPLC of Formula: 399-76-8, 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.

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

Das, Sujoy’s team published research in ACS Omega in 2019-03-31 | 950846-89-6

ACS Omega published new progress about Crystal structure (of quinoline rhodamine acetamide). 950846-89-6 belongs to class indole-building-block, and the molecular formula is C30H36N4O2, Name: 2-(2-Aminoethyl)-3′,6′-bis(diethylamino)spiro[isoindoline-1,9′-xanthen]-3-one.

Das, Sujoy; Rissanen, Kari; Sahoo, Prithidipa published the artcile< Rare Crystal Structure of Open Spirolactam Ring along with the Closed-Ring Form of a Rhodamine Derivative: Sensing of Cu2+ Ions from Spinach>, Name: 2-(2-Aminoethyl)-3′,6′-bis(diethylamino)spiro[isoindoline-1,9′-xanthen]-3-one, the main research area is crystal structure spirolactam ring copper ion spinach.

Crystal structures of a rhodamine derivative in its closed and open spirolactam ring form combined with a selective and sensitive detection of Cu2+ ion at micromolar range in neutral medium. The chemosensing properties of the probe through a pentacoordinate Cu2+ ion were proven by spectroscopic and theor. anal. The spirolactam ring opening as the Cu2+ selective sensor was applied to spinach (Spinacia oleracea) to estimate the accumulation of copper as copper(II) into the plant.

Xu, Hai-Feng’s team published research in Journal of Organic Chemistry in 2021-01-15 | 399-76-8

Journal of Organic Chemistry published 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, Recommanded Product: 5-Fluoroindole-2-carboxylic acid.

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>, Recommanded Product: 5-Fluoroindole-2-carboxylic acid, 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.

Gao, Zhigang’s team published research in Tetrahedron in 2019-03-01 | 950846-89-6

Tetrahedron published new progress about Biocompatibility. 950846-89-6 belongs to class indole-building-block, and the molecular formula is C30H36N4O2, Recommanded Product: 2-(2-Aminoethyl)-3′,6′-bis(diethylamino)spiro[isoindoline-1,9′-xanthen]-3-one.

Gao, Zhigang; Kan, Chun; Liu, Haibo; Zhu, Jing; Bao, Xiaofeng published the artcile< A highly sensitive and selective fluorescent probe for Fe3+ containing two rhodamine B and thiocarbonyl moieties and its application to live cell imaging>, Recommanded Product: 2-(2-Aminoethyl)-3′,6′-bis(diethylamino)spiro[isoindoline-1,9′-xanthen]-3-one, the main research area is iron ion fluorescent probe rhodamine B thiocarbonyl moiety bioimaging.

A novel turn-on rhodamine B-based fluorescent chemosensor (RBCS) was designed and synthesized by reacting N-(rhodamine B)lactam-1,2-ethylenediamine and carbon disulfide. Upon addition of Fe3+ in EtOH/H2O solution (2:1, volume/volume, HEPES buffer, 0.6 mM, pH 7.20), the RBCS displayed a significant fluorescence enhancement at 582 nm and a dramatic color change from colorless to pink, which can be detected by the naked eye. Significantly, the RBCS exhibited a highly selective and sensitive ability toward Fe3+. The detection limit of the probe was 2.05 × 10-7 M. Job’s plot indicated the formation of 1:1 complex between the RBCS and Fe3+. Moreover, the practical use of the RBCS is demonstrated by its application in the detection of Fe3+ in HeLa cells.

Li, Ming’s team published research in Organic & Biomolecular Chemistry in 2020 | CAS: 399-52-0

5-Fluoro-1H-indole(cas: 399-52-0) is a member of aromaticfluorinated building blocks. Fluorine-containing aromatics have been incorporated into crop-protection chemicals (herbicides, insecticides, fungicides). Liquid crystals, positron emission tomography, and imaging systems represent new areas where fluoroaromatics and fluoroheterocyclics have gained attention.Recommanded Product: 5-Fluoro-1H-indole

《The ruthenium(II)-catalyzed C-H olefination of indoles with alkynes: the facile construction of tetrasubstituted alkenes under aqueous conditions》 was published in Organic & Biomolecular Chemistry in 2020. These research results belong to Li, Ming; Yao, Tian-Yu; Sun, Sheng-Zheng; Yan, Ting-Xun; Wen, Li-Rong; Zhang, Lin-Bao. Recommanded Product: 5-Fluoro-1H-indole The article mentions the following:

An environmentally-friendly and facile protocol for the construction of tetrasubstituted alkenes I [R1 = H, 5-Me, 4-Cl, etc.; R2 = H, Me, Ph, etc.; R3 = R4 = Ph, 4-MeC6H4, 4-BrC6H4, etc.] was established with Ru(II)-catalyzed C-H bond functionalizations under mild conditions. The method featured the usage of readily available substrates, without external oxidants and additives, 100% atom economy, and excellent regioselectivity, thus enhancing the practicability of this protocol. Moreover, this transformation proceeded smoothly under aqueous conditions and could be extended to the gram scale. N-Methoxyamide, as a directing group (DG), played a vital role in the transformation. The experimental part of the paper was very detailed, including the reaction process of 5-Fluoro-1H-indole(cas: 399-52-0Recommanded Product: 5-Fluoro-1H-indole)

Dhara, Debashis’s team published research in Tetrahedron: Asymmetry in 2014 | CAS: 99409-32-2

Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranoside(cas: 99409-32-2) belongs to indole.The indole subunit is an almost ubiquitous component of biologically active natural products, and its study has been the focus of research for decades.Formula: C22H25NO9SThey are capable of binding to a variety of receptors with high affinity and thus have applications in a wide range of therapeutic areas. Due to this activity, the indole ring system has become an important component or intermediate in the synthesis of heterocycles.

Dhara, Debashis; Mandal, Pintu Kumar; Misra, Anup Kumar published an article on February 15 ,2014. The article was titled 《Convergent synthesis of a pentasaccharide repeating unit corresponding to the cell wall O-antigen of Salmonella enterica O44》, and you may find the article in Tetrahedron: Asymmetry.Formula: C22H25NO9S The information in the text is summarized as follows:

A convergent synthetic strategy has been developed for the synthesis of a pentasaccharide fragment corresponding to the O-antigen of Salmonella enterica O44 strain. An intermediate tetrasaccharide derivative was prepared by a [2+2] block glycosylation of two disaccharide derivatives The p-methoxybenzyl (PMB) group has been used as the in situ temporary protecting group minimizing the number of functional group manipulation steps. The application of the armed-disarmed glycosylation concept reduced the number of steps in the synthetic strategy. The glycosylation steps were highly stereoselective and high yielding. In the experiment, the researchers used many compounds, for example, Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranoside(cas: 99409-32-2Formula: C22H25NO9S)

Yadav, Arun’s team published research in Journal of Organic Chemistry in 2021 | CAS: 399-52-0

Yadav, Arun; Kumar, Dileep; Mishra, Manish Kumar; Deeksha; Tripathi, Chandra Bhushan published their research in Journal of Organic Chemistry in 2021. The article was titled 《Catalytic Enantioselective Synthesis of Aryl-Methyl Organophosphorus Compounds》.Application of 399-52-0 The article contains the following contents:

A catalytic enantioselective protocol for the synthesis of aryl-Me organophosphorus compounds is reported. Utilizing a chiral phosphoric acid as a catalyst, a wide range of indole derivatives reacted with phosphorylated quinomethanes in high yield with excellent enantioselectivity. This is the first report on the application of phosphorylated quinomethanes in asym. synthesis. In the experiment, the researchers used many compounds, for example, 5-Fluoro-1H-indole(cas: 399-52-0Application of 399-52-0)

Classon, Bjoern’s team published research in Carbohydrate Research in 1991 | CAS: 99409-32-2

Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranoside(cas: 99409-32-2) belongs to indole.The indole subunit is an almost ubiquitous component of biologically active natural products, and its study has been the focus of research for decades.Category: indole-building-blockThey are capable of binding to a variety of receptors with high affinity and thus have applications in a wide range of therapeutic areas. Due to this activity, the indole ring system has become an important component or intermediate in the synthesis of heterocycles.

Category: indole-building-blockOn September 2, 1991 ,《Synthesis of an artificial antigen that corresponds to a disaccharide repeating unit of the capsular polysaccharide of Haemophilus influenzae type d. A facile synthesis of methyl 2-acetamido-2-deoxy-β-D-mannopyranoside》 was published in Carbohydrate Research. The article was written by Classon, Bjoern; Garegg, Per J.; Oscarson, Stefan; Tiden, Anna Karin. The article contains the following contents:

The synthesis is described of p-nitrophenyl acetamido(deoxyglucopyranosyl)deoxymannopyranosiduronic acid I (R = C6H4NO2-4), corresponding to the disaccharide repeating unit of the capsular polysaccharide of Haemophilus influenzae type d, which, after conversion of the p-nitro- into a p-aminophenyl residue, may be attached to a protein to make an artificial antigen for immunol. studies. The synthesis incorporates a facile route to the 2-acetamido-2-deoxy-β-D-mannopyranosyl unit. The experimental part of the paper was very detailed, including the reaction process of Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranoside(cas: 99409-32-2Category: indole-building-block)

Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranoside(cas: 99409-32-2) belongs to indole.The indole subunit is an almost ubiquitous component of biologically active natural products, and its study has been the focus of research for decades.Category: indole-building-blockThey are capable of binding to a variety of receptors with high affinity and thus have applications in a wide range of therapeutic areas. Due to this activity, the indole ring system has become an important component or intermediate in the synthesis of heterocycles.

Hou, Shu Jie’s team published research in Chinese Chemical Letters in 2005 | CAS: 99409-32-2

Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranoside(cas: 99409-32-2) belongs to indole.The indole subunit is an almost ubiquitous component of biologically active natural products, and its study has been the focus of research for decades.SDS of cas: 99409-32-2They are capable of binding to a variety of receptors with high affinity and thus have applications in a wide range of therapeutic areas. Due to this activity, the indole ring system has become an important component or intermediate in the synthesis of heterocycles.

SDS of cas: 99409-32-2On May 31, 2005, Hou, Shu Jie; Zou, Chuan Chun; Lei, Ping Sheng; Yu, De Quan published an article in Chinese Chemical Letters. The article was 《An efficient way for glycosylation of spirostanol》. The article mentions the following:

Using thioglycosides as donors and trimethylsilyl trifluoromethanesulfonate (TMSOTf) and N-iodosuccinimide (NIS) as promoter, a modified procedure for the glycosylation of spirostanols was developed. A series of saponins were synthesized in mild condition with excellent yields. E.g., sapogenin glucoside I (R = phthalimido) was prepared with quant. yield by reacting diosgenin with Et 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside using TMSOTf, NIS and 4Å mol. sieves in CH2Cl2 at -15°. In the experimental materials used by the author, we found Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranoside(cas: 99409-32-2SDS of cas: 99409-32-2)

Ethyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-thioglucopyranoside(cas: 99409-32-2) belongs to indole.The indole subunit is an almost ubiquitous component of biologically active natural products, and its study has been the focus of research for decades.SDS of cas: 99409-32-2They are capable of binding to a variety of receptors with high affinity and thus have applications in a wide range of therapeutic areas. Due to this activity, the indole ring system has become an important component or intermediate in the synthesis of heterocycles.

Naaz, Fatima’s team published research in Future Medicinal Chemistry in 2021 | CAS: 120-72-9

1H-Indole(cas: 120-72-9) belongs to indole. Indole, also called Benzopyrrole, a heterocyclic organic compound occurring in some flower oils, such as jasmine and orange blossom, in coal tar, and in fecal matter. It is used in perfumery and in making tryptophan, an essential amino acid, and indoleacetic acid (heteroauxin), a hormone that promotes the development of roots in plant cuttings.Application of 120-72-9

Application of 120-72-9In 2021 ,《Indole derivatives (2010-2020) as versatile tubulin inhibitors: synthesis and structure-activity relationships》 appeared in Future Medicinal Chemistry. The author of the article were Naaz, Fatima; Neha, Kumari; Haider, Rafi Md; Shafi, Syed. The article conveys some information:

A review. Tubulin inhibitors are conjugates that interfere with the dynamic equilibrium of the polymerization and depolymerization of microtubules. Among all the reported conjugates, indole moiety is one of the most significant classes for the development of new drug candidates for cancer therapy. Due to their presence in a wide range of natural as well as synthetic antitubulin agents, indole has become a versatile scaffold in research, and various synthetic and semisynthetic indole-based antitubulin agents have been identified and reported. The present article focuses on the reported indole-based tubulin inhibitors of synthetic origin from last the decade. Synthesis, structure-activity relationships and biol. activities of synthetic indole derivatives along with brief updates on their antitubulin activity are presented. The experimental process involved the reaction of 1H-Indole(cas: 120-72-9Application of 120-72-9)