Category: Triazoles

Sheng, Chunquan; Che, Xiaoying; Wang, Wenya; Wang, Shengzheng; Cao, Yongbing; Yao, Jianzhong; Miao, Zhenyuan; Zhang, Wannian published an article about the compound: 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone( cas:86404-63-9,SMILESS:FC1=CC=C(C(CN2N=CN=C2)=O)C(F)=C1 ).Name: 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:86404-63-9) through the article.

A series of new antifungal triazole derivatives containing an arylacetamide side chain were rationally designed and synthesized on the basis of the structural information of lanosterol 14-demethylase (CYP51). In vitro antifungal activity assay indicated that several compounds showed higher activity than fluconazole. Especially, compound I showed excellent inhibitory activity against Candida albicans and Cryptococcus neoformans (MIC = 0.0156 μg/mL), suggesting that it is a promising lead for the development of novel antifungal agents. The binding mode of compound I was investigated by flexible mol. docking. It interacted with CACYP51 through hydrophobic and van der Waals interactions.

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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Boyle, F. Thomas; Gilman, David J.; Gravestock, Michael B.; Wardleworth, J. Michael published the article 《Synthesis and structure-activity relationships of a novel antifungal agent, ICI 195,739》. Keywords: fungicide ICI195739 preparation; azole fungicide structure activity; triazole derivative fungicide structure activity.They researched the compound: 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone( cas:86404-63-9 ).SDS of cas: 86404-63-9. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:86404-63-9) here.

Antifungal azole derivatives are known to have potential for inhibition of host P 450 systems, and, in the attempts to increase the antifungal specificity of the inhibitor by identification of extra receptor binding within the enzyme complex, initial synthesis was guided by the structural requirements of the natural lanosterol substrate. With the aid of computer graphics, the 3′-styryl functionality was identified as a key structural element. For metabolically stable systems, in vitro-in vivo correlations exist, but optimizing oral activity resulted in the production of compounds with unacceptably long elimination half-lives. A disconnection of this relationship was achieved in pairs of structural isosteres with metabolic nonequivalence (CN:CONH2/OCH3:OCF3) and led to the identification of ICI 195,739 (I), a novel 3′-tetrafluoropropoxystyryl-substituted bistriazole tertiary alc., as the compound of choice.

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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Design, Synthesis, and Biological Evaluation of Linear Aliphatic Amine-Linked Triaryl Derivatives as Potent Small-Molecule Inhibitors of the Programmed Cell Death-1/Programmed Cell Death-Ligand 1 Interaction with Promising Antitumor Effects In Vivo》. Authors are Guo, Jialin; Luo, Longlong; Wang, Zhihong; Hu, Naijing; Wang, Wei; Xie, Fei; Liang, Erguang; Yan, Xinlin; Xiao, Junhai; Li, Song.The article about the compound:5-(Chloromethyl)nicotinonitrilecas:562074-59-3,SMILESS:N#CC1=CN=CC(CCl)=C1).Name: 5-(Chloromethyl)nicotinonitrile. Through the article, more information about this compound (cas:562074-59-3) is conveyed.

A series of novel linear aliphatic amine-linked triaryl derivatives as inhibitors of PD-1/PD-L1 were designed, synthesized, and evaluated in vitro and in vivo. In this chem. series, compound I showed the most potent inhibitory activity and binding affinity with hPD-L1, with an IC50 value of 12 nM and a KD value of 16.2 pM, showing a binding potency approx. 2000-fold that of hPD-1. Compound I could bind with hPD-L1 on the cellular surface and competitively block the interaction of hPD-1 with hPD-L1. In a T cell function assay, I restored the T cell function, leading to increased IFN-γ secretion. Moreover, in a humanized mouse model, compound I significantly inhibited tumor growth without obvious toxicity and showed moderate PK properties after i.v. injection. These results indicated that I is a promising lead for further development of small-mol. PD-1/PD-L1 inhibitors for cancer therapy.

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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 65705-44-4, is researched, Molecular C10H9BrN2S, about Intramolecular Diaza-Diels-Alder Protocol: A New Diastereoselective and Modular One-Step Synthesis of Constrained Polycyclic Frameworks, the main research direction is diastereoselective modular polycyclic benzopyran benzoxepine preparation antimalarial activity SAR; acid mediated diaza Diels Alder reaction benzaldehyde aminoazine; antimalarial activity; cycloaddition; polycycles; structure-activity relationships; synthesis design.Category: triazoles.

Phenotype-based screening of diverse compound collections generated by privileged substructure-based diversity-oriented synthesis (pDOS) is considered one of the prominent approaches in the discovery of novel drug leads. However, one key challenge that remains is the development of efficient and modular synthetic routes toward the facile access of privileged small-mol. libraries with skeletal and stereochem. complexity and drug-like properties. In this regard, a novel and diverse one-pot procedure for the diastereoselective synthesis of privileged polycyclic benzopyrans and benzoxepines is described herein. These unexplored chemotypes were accessed by utilizing an acid-mediated diaza-Diels-Alder reaction of 2-allyloxy- and/or homoallyloxy benzaldehyde with 2-aminoazine building blocks. Profiling of representative analogs against blood-stage Plasmodium falciparum parasites identified three lead candidates with low micromolar antimalarial activity.

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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Kurosawa, Miki B.; Isshiki, Ryota; Muto, Kei; Yamaguchi, Junichiro researched the compound: 6-Methylnicotinic acid( cas:3222-47-7 ).Recommanded Product: 3222-47-7.They published the article 《Catalytic deoxygenative coupling of aromatic esters with organo-phosphorus compounds》 about this compound( cas:3222-47-7 ) in ChemRxiv. Keywords: benzyl phosphine oxide phosphonate phosphinate preparation reductive phosphorylation ester; aryl phenyl ester reduction phosphorylation secondary phosphine oxide phosphonate; reductive coupling aryl ester preparation phosphine oxide phosphonate phosphinate. We’ll tell you more about this compound (cas:3222-47-7).

We have developed a deoxygenative coupling of aromatic esters with diarylphosphine oxides/dialkyl phosphonates under palladium catalysis. Reaction of Ph aromatic esters ArCO2Ph with hydrophosphoryl compounds HP(O)R2 (R = Ph, aryl, BuO) in the presence of PdCl2/dcype and HCO2Na reductant afforded benzyl phosphine oxides, phosphonates and phosphinates ArCH2P(O)R2. In this reaction, aromatic esters can work as novel benzylation reagents to give the corresponding benzylic phosphorus compounds The key of this reaction is the use of Ph esters, an electron-rich diphosphine as a ligand, and sodium formate as a hydrogen source. Arylcarboxylic acids were also applicable in this reaction using (Boc)2O as an additive. Palladium/dcype worked as a bifunctional catalyst to activate the acyl C-O bond of the ester and to support the reduction with sodium formate.

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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Sheng, Chunquan; Zhang, Wannian; Ji, Haitao; Zhang, Min; Song, Yunlong; Xu, Hui; Zhu, Jie; Miao, Zhenyuan; Jiang, Qingfen; Yao, Jianzhong; Zhou, Youjun; Zhu, Jue; Lue, Jiaguo published the article 《Structure-Based Optimization of Azole Antifungal Agents by CoMFA, CoMSIA, and Molecular Docking》. Keywords: antifungal agent CoMFA pharmacophore preparation SAR mol modeling.They researched the compound: 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone( cas:86404-63-9 ).Computed Properties of C10H7F2N3O. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:86404-63-9) here.

In a continuing effort to develop highly potent azole antifungal agents, the three-dimensional quant. structure-activity relationship methods, CoMFA and CoMSIA, were applied using a set of novel azole antifungal compounds The binding mode of the compounds at the active site of lanosterol 14α-demethylase was further explored using the flexible docking method. Various hydrophobic, van der Waals, π-π stacking, and hydrogen bonding interactions were observed between the azoles and the enzyme. Based on results from the mol. modeling, a receptor-based pharmacophore model was established to guide the rational optimization of the azole antifungal agents. Thus, a total of 57 novel azoles were designed and synthesized by a three-step optimization process. In vitro antifungal assay revealed that the antifungal activities of these novel azoles were greatly improved, which confirmed the reliability of the model from mol. modeling.

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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 3222-47-7, is researched, Molecular C7H7NO2, about Functionalisation of esters via 1,3-chelation using NaOtBu: mechanistic investigations and synthetic applications, the main research direction is ester transesterification deesterification chelation mechanistic synthetic application.SDS of cas: 3222-47-7.

For the first time, both 1,3-chelation and the formation of a tetrahedral intermediate were confirmed as the key factors for the unusual nucleophilic behavior of a metal t-butoxide in a transesterification reaction. NMR and real-time IR spectroscopies and deuterium-labeling experiments were used for the mechanistic investigation. Based on a pivotal point in the mechanistic understanding of the action of t-butoxide anion, several uncovering reactions such as direct access to value-added chiral α-amino acid t-Bu ester with almost complete retention of optical purity via elaborative transesterification, non-hydrolytic deesterification of esters, and selective bond cleavage of 3-benzoyloxazolidin-2-ones, were successfully achieved.

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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Product Details of 3222-47-7. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 6-Methylnicotinic acid, is researched, Molecular C7H7NO2, CAS is 3222-47-7, about Discovery of [1,2,4]Triazolo[1,5-a]pyridine Derivatives as Potent and Orally Bioavailable RORγt Inverse Agonists. Author is Nakajima, Ryota; Oono, Hiroyuki; Sugiyama, Sakae; Matsueda, Yohei; Ida, Tomohide; Kakuda, Shinji; Hirata, Jun; Baba, Atsushi; Makino, Akito; Matsuyama, Ryo; White, Ryan D.; Wurz, Ryan Ρ.; Shin, Youngsook; Min, Xiaoshan; Guzman-Perez, Angel; Wang, Zhulun; Symons, Antony; Singh, Sanjay K.; Mothe, Srinivasa Reddy; Belyakov, Sergei; Chakrabarti, Anjan; Shuto, Satoshi.

The retinoic acid receptor-related orphan nuclear receptor γt (RORγt), a promising therapeutic target, is a major transcription factor of genes related to psoriasis pathogenesis such as interleukin (IL)-17A, IL-22, and IL-23R. On the basis of the X-ray cocrystal structure of RORγt with 1a, an analog of the known piperazine RORγt inverse agonist 1, triazolopyridine derivatives of 1 were designed and synthesized, and analog 3a was found to be a potent RORγt inverse agonist. Structure-activity relationship studies on 3a, focusing on the treatment of its metabolically unstable cyclopentyl ring and the central piperazine core, led to a novel analog, namely, 6-methyl-N-(7-methyl-8-(((2S,4S)-2-methyl-1-(4,4,4-trifluoro-3-(trifluoromethyl)butanoyl)piperidin-4-yl)oxy)[1,2,4]triazolo[1,5-a]pyridin-6-yl)nicotinamide (5a), which exhibited strong RORγt inhibitory activity and a favorable pharmacokinetic profile. Moreover, the in vitro and in vivo evaluation of 5a in a human whole-blood assay and a mouse IL-18/23-induced cytokine expression model revealed its robust and dose-dependent inhibitory effect on IL-17A production

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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Safety of 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone, is researched, Molecular C10H7F2N3O, CAS is 86404-63-9, about Studies on synthesis, structure and biological activities of novel triazole compounds containing thioamide. Author is Xu, Liang-Zhong; Li, Wei-Hua; Li, Kai; Qin, Yong-Qi; Li, Chun-Li; Hou, Bao-Rong.

Four novel triazole compounds containing thioamide group were designed and synthesized by using triazole, Ph isothiocyanate and aryl Et ketones as starting materials. The desired intermediates were thus derivatives of α-(1H-1,2,4-triazol-1-yl)methyl ketones. Their structures were confirmed by elemental anal., 1H NMR, IR and MS spectra. The crystal structure of 1-[1-[(anilino)thiocarbonyl]-1-(4-fluorobenzoyl)methyl]-1,2,4-triazole [also, i.e., α-(fluorobenzoyl)-N-phenyl-1,2,4-triazole-1-ethanethioamide] has been determined by X-ray diffraction anal. The preliminary bioassays have shown that the title compounds exhibit certain antifungal activity.

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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Aminothiazole-Featured Pirinixic Acid Derivatives As Dual 5-Lipoxygenase and Microsomal Prostaglandin E2 Synthase-1 Inhibitors with Improved Potency and Efficiency in Vivo, published in 2013-11-27, which mentions a compound: 65705-44-4, Name is 4-(4-Bromophenyl)-5-methylthiazol-2-amine, Molecular C10H9BrN2S, Recommanded Product: 65705-44-4.

Dual inhibition of microsomal prostaglandin E2 synthase-1 (mPGES-1) and 5-lipoxygenase (5-LO) is currently pursued as potential pharmacol. strategy for treatment of inflammation and cancer. Here we present a series of 26 novel 2-aminothiazole-featured pirinixic acid derivatives as dual 5-LO/mPGES-1 inhibitors with improved potency (exemplified by compound 2-[(4-chloro-6-{[4-(naphthalen-2-yl)-1,3-thiazol-2-yl]-amino}-pyrimidin-2-yl)-sulfanyl]-octanoic acid (I) with IC50 = 0.3 and 0.4 μM, resp.) and bioactivity in vivo. Computational anal. presumes binding sites of I at the tip of the 5-LO catalytic domain and within a subpocket of the mPGES-1 active site. Compound I (10 μM) hardly suppressed cyclooxygenase (COX)-1/2 activities, failed to inhibit 12/15-LOs, and is devoid of radical scavenger properties. Finally, compound I reduced vascular permeability and inflammatory cell infiltration in a zymosan-induced mouse peritonitis model accompanied by impaired levels of cysteinyl-leukotrienes and prostaglandin E2. Together, 2-aminothiazole-featured pirinixic acids represent potent dual 5-LO/mPGES-1 inhibitors with an attractive pharmacol. profile as anti-inflammatory drugs.

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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics