Tag: M.W=200-250

Du, Hongying published the artcileClassification structure-activity relationship (CSAR) studies for prediction of genotoxicity of thiophene derivatives, Recommanded Product: 2-(4-Aminophenyl)-6-methylbenzothiazole, the publication is Toxicology Letters (2008), 177(1), 10-19, database is CAplus and MEDLINE.

The grid search support vector machine (GS-SVM) was used to build a classification structure-activity relationship (CSAR) model and to predict the genotoxicity property of 140 thiophene derivatives with the information derived from the compounds’ mol. structures. The seven descriptors selected by linear discriminant anal. (LDA) were used as the inputs to develop the GS-SVM model. Using the Grid Search method, a satisfactory model with a good predictive capability was obtained. The quality of the models was evaluated by the number of right classified compounds The total accuracy of the LDA model was 81.4% and 85.2% for the training set and test set, resp., and to the GS-SVM model was 92.9% and 92.6%, resp. It was proved that the GS-SVM method was a very useful modeling approach with good classification ability for the genotoxicity of the thiophene derivatives This work also provides a new idea and an alternative method to investigate the genotoxicity of the similar structures with thiophene derivatives, and can be extended to other toxicity studies.

Toxicology Letters published new progress about 92-36-4. 92-36-4 belongs to thiazole, auxiliary class Organic Pigment, name is 2-(4-Aminophenyl)-6-methylbenzothiazole, and the molecular formula is C14H12N2S, Recommanded Product: 2-(4-Aminophenyl)-6-methylbenzothiazole.

Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/thiazole,
Thiazole | chemical compound | Britannica

Kuhnert-Brandstaetter, Maria published the artcileThermal analytical and infrared spectroscopic investigations on polymorphic organic compounds. V., Computed Properties of 92-36-4, the publication is Mikrochimica Acta (1989), 3(1-2), 125-36, database is CAplus.

All the polymorphic compounds described are enantiotropic, so that in four cases, order-disorder or rotational transformation can be deduced on the basis of the relationships between enthalpy of transformation and enthalpy of fusion. The following compounds are of this type: (±)-1-azabicyclo[2.2.2]octan-3-ol (4 modifications), 5-norbornene-2,3-dicarboxylic anhydride (3 modifications), (1R)-(-)-camphorquinone (3 modifications) and 2-bromoethylamine-HBr (3 modifications). For tris(acetylacetonato)aluminum(III) (3 modifications) and 2-(4-aminophenyl)-6-methylbenzothiazole (5 modifications), another type of transformation must be assumed.

Mikrochimica Acta published new progress about 92-36-4. 92-36-4 belongs to thiazole, auxiliary class Organic Pigment, name is 2-(4-Aminophenyl)-6-methylbenzothiazole, and the molecular formula is C14H12N2S, Computed Properties of 92-36-4.

Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/thiazole,
Thiazole | chemical compound | Britannica

Lee, Nathanael J. published the artcileHexa (ethylene glycol) derivative of benzothiazole aniline promotes dendritic spine formation through the RasGRF1-Ras dependent pathway, Recommanded Product: 2-(4-Aminophenyl)-6-methylbenzothiazole, the publication is Biochimica et Biophysica Acta, Molecular Basis of Disease (2016), 1862(2), 284-295, database is CAplus and MEDLINE.

The authors’ recent study demonstrated that an amyloid-β binding mol., BTA-EG4, increases dendritic spine number via Ras-mediated signaling. To potentially optimize the potency of the BTA compounds, the authors synthesized and evaluated an amyloid-β binding analog of BTA-EG4 with increased solubility in aqueous solution, BTA-EG6. The authors initially examined the effects of BTA-EG6 on dendritic spine formation and found that BTA-EG6-treated primary hippocampal neurons had significantly increased dendritic spine number compared to control treatment. In addition, BTA-EG6 significantly increased the surface level of AMPA receptors. Upon investigation into the mol. mechanism by which BTA-EG6 promotes dendritic spine formation, the authors found that BTA-EG6 may exert its effects on spinogenesis via RasGRF1-ERK signaling, with potential involvement of other spinogenesis-related proteins such as Cdc42 and CDK5. Taken together, the authors’ data suggest that BTA-EG6 boosts spine and synapse number, which may have a beneficial effect of enhancing neuronal and synaptic function in the normal healthy brain.

Biochimica et Biophysica Acta, Molecular Basis of Disease published new progress about 92-36-4. 92-36-4 belongs to thiazole, auxiliary class Organic Pigment, name is 2-(4-Aminophenyl)-6-methylbenzothiazole, and the molecular formula is C14H12N2S, Recommanded Product: 2-(4-Aminophenyl)-6-methylbenzothiazole.

Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/thiazole,
Thiazole | chemical compound | Britannica

Yang, Jimin published the artcileSolid-Phase Synthesis of Phosphorothioate Oligonucleotides Using Sulfurization Byproducts for in Situ Capping, Category: thiazole, the publication is Journal of Organic Chemistry (2018), 83(19), 11577-11585, database is CAplus and MEDLINE.

Phosphorothioate (PS) oligonucleotides are manufactured via a solid-phase chain elongation process in which a four-reaction cycle consisting of detritylation, coupling, sulfurization, and failure sequence capping with Ac₂O is repeated. In the capping step uncoupled sequences are acetylated at the 5′-OH to stop the chain growth and control the levels of deletion, or (n-1), impurities. Herein, we report that the byproducts of the commonly used sulfurization reagents react with the 5′-OH and cap the failure sequences. The standard Ac₂O capping step can therefore be eliminated and this 3-reaction cycle process affords higher yield and higher or comparable overall purity compared to the conventional 4-reaction synthesis. This improvement results in reducing the number of reactions from âˆ?0 to âˆ?0 for synthesis of a typical length 20-mer oligonucleotide. For every kilogram of an oligonucleotide intermediate synthesized, > 500 L of reagents and organic solvents are saved and the E-factor is decreased to < 1500 from âˆ?000.

Journal of Organic Chemistry published new progress about 1192027-04-5. 1192027-04-5 belongs to thiazole, auxiliary class Other Aliphatic Heterocyclic,Amine, name is N,N-Dimethyl-N’-(3-thioxo-3H-1,2,4-dithiazol-5-yl)formimidamide, and the molecular formula is C12H15ClO3, Category: thiazole.

Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/thiazole,
Thiazole | chemical compound | Britannica

Park, Cheol-Min published the artcileNon-peptidic small molecule inhibitors of XIAP, Computed Properties of 56503-96-9, the publication is Bioorganic & Medicinal Chemistry Letters (2005), 15(3), 771-775, database is CAplus and MEDLINE.

Non-peptidic small mol. SMAC mimetics were designed and synthesized that bind to the BIR3 domain of XIAP using structure-based design. Substituted five-membered heterocycles such as thiazoles and imidazoles were identified that serve as replacements for peptide fragments of the lead. An example compound thus prepared and evaluated was an N-(thiazolyl)-L-alaninamide derivative (I).

Bioorganic & Medicinal Chemistry Letters published new progress about 56503-96-9. 56503-96-9 belongs to thiazole, auxiliary class Thiazole,Amine,Naphthalene, name is 4-(Naphthalen-1-yl)thiazol-2-amine, and the molecular formula is C13H10N2S, Computed Properties of 56503-96-9.

Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/thiazole,
Thiazole | chemical compound | Britannica

Zhou, Yuefen published the artcileStructure-activity relationships of novel antibacterial translation inhibitors: 3,5-Diamino-piperidinyl triazines, Safety of 2-(4-Aminophenyl)-6-methylbenzothiazole, the publication is Bioorganic & Medicinal Chemistry Letters (2006), 16(20), 5451-5456, database is CAplus and MEDLINE.

Structure-activity relationships of the 3,5-diamino-piperidinyl triazine series, a novel class of bacterial translation inhibitors, are described. Optimization was focused on the triazine C-4 position in which aromatic substituents that contained electron-withdrawing groups led to potent inhibitors. The initial lack of antibacterial activity was correlated with poor cellular penetration. Whole cell antibacterial activity was achieved by linking addnl. aromatic moieties at the triazine C-4 position.

Bioorganic & Medicinal Chemistry Letters published new progress about 92-36-4. 92-36-4 belongs to thiazole, auxiliary class Organic Pigment, name is 2-(4-Aminophenyl)-6-methylbenzothiazole, and the molecular formula is C4H10O2, Safety of 2-(4-Aminophenyl)-6-methylbenzothiazole.

Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/thiazole,
Thiazole | chemical compound | Britannica

Masuda, Masami published the artcileSmall Molecule Inhibitors of α-Synuclein Filament Assembly, Safety of 2-(4-Aminophenyl)-6-methylbenzothiazole, the publication is Biochemistry (2006), 45(19), 6085-6094, database is CAplus and MEDLINE.

α-Synuclein is the major component of the filamentous inclusions that constitute defining characteristics of Parkinson’s disease and other α-synucleinopathies. Here we have tested 79 compounds belonging to 12 different chem. classes for their ability to inhibit the assembly of α-synuclein into filaments in vitro. Several polyphenols, phenothiazines, porphyrins, polyene macrolides, and Congo red and its derivatives, BSB and FSB, inhibited α-synuclein filament assembly with IC₅₀ values in the low micromolar range. Many compounds that inhibited α-synuclein assembly were also found to inhibit the formation of Aβ and tau filaments. Biochem. anal. revealed the formation of soluble oligomeric α-synuclein in the presence of inhibitory compounds, suggesting that this may be the mechanism by which filament formation is inhibited. Unlike α-synuclein filaments and protofibrils, these soluble oligomeric species did not reduce the viability of SH-SY5Y cells. These findings suggest that the soluble oligomers formed in the presence of inhibitory compounds may not be toxic to nerve cells and that these compounds may therefore have therapeutic potential for α-synucleinopathies and other brain amyloidoses.

Biochemistry published new progress about 92-36-4. 92-36-4 belongs to thiazole, auxiliary class Organic Pigment, name is 2-(4-Aminophenyl)-6-methylbenzothiazole, and the molecular formula is C14H12N2S, Safety of 2-(4-Aminophenyl)-6-methylbenzothiazole.

Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/thiazole,
Thiazole | chemical compound | Britannica

Taniguchi, Sayuri published the artcileInhibition of Heparin-induced Tau Filament Formation by Phenothiazines, Polyphenols, and Porphyrins, HPLC of Formula: 92-36-4, the publication is Journal of Biological Chemistry (2005), 280(9), 7614-7623, database is CAplus and MEDLINE.

Tau protein is the major component of the intraneuronal filamentous inclusions that constitute defining neuropathol. characteristics of Alzheimer’s disease and other tauopathies. The discovery of tau gene mutations in familial forms of frontotemporal dementia has established that dysfunction of the tau protein is sufficient to cause neurodegeneration and dementia. Here we have tested 42 compounds belonging to nine different chem. classes for their ability to inhibit heparin-induced assembly of tau into filaments in vitro. Several phenothiazines (methylene blue, azure A, azure B, and quinacrine mustard), polyphenols (myricetin, epicatechin 5-gallate, gossypetin, and 2,3,4,2′,4′-pentahydroxybenzophenone), and the porphyrin ferric deuteroporphyrin IX inhibited tau filament formation with IC₅₀ values in the low micromolar range as assessed by thioflavin S fluorescence, electron microscopy, and Sarkosyl insolubility Disassembly of tau filaments was observed in the presence of the porphyrin phthalocyanine. Compounds that inhibited tau filament assembly were also found to inhibit the formation of Aβ fibrils. Biochem. anal. revealed the formation of soluble oligomeric tau in the presence of the inhibitory compounds, suggesting that this may be the mechanism by which tau filament formation is inhibited. The compounds investigated did not affect the ability of tau to interact with microtubules. Identification of small mol. inhibitors of heparin-induced assembly of tau will form a starting point for the development of mechanism-based therapies for the tauopathies.

Journal of Biological Chemistry published new progress about 92-36-4. 92-36-4 belongs to thiazole, auxiliary class Organic Pigment, name is 2-(4-Aminophenyl)-6-methylbenzothiazole, and the molecular formula is C14H10N2O, HPLC of Formula: 92-36-4.

Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/thiazole,
Thiazole | chemical compound | Britannica

Bort, Guillaume published the artcileStraightforward synthesis of PET tracer precursors used for the early diagnosis of Alzheimers disease through Suzuki-Miyaura cross-coupling reactions, SDS of cas: 92-36-4, the publication is Tetrahedron (2013), 69(35), 7345-7353, database is CAplus.

In positron emission tomog. [¹¹C]PIB, Pittsburgh Compound-B, is currently the most widely used radiopharmaceutical for the early diagnosis of Alzheimer’s disease. Synthetic routes for the preparation of the precursor of [¹¹C]PIB are reported in the literature. These strategies require multiple steps and the use of protecting groups. This paper describes a simple 1-step synthesis of the precursor of [¹¹C]PIB through a Suzuki-Miyaura coupling reaction using thermal conditions or microwave activation. These methods were successfully applied to the synthesis of various 2-arylbenzothiazole and 2-pyridinylbenzothiazole compounds including [¹⁸F] precursor derivatives of PIB containing a nitro function.

Tetrahedron published new progress about 92-36-4. 92-36-4 belongs to thiazole, auxiliary class Organic Pigment, name is 2-(4-Aminophenyl)-6-methylbenzothiazole, and the molecular formula is C14H12N2S, SDS of cas: 92-36-4.

Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/thiazole,
Thiazole | chemical compound | Britannica

Xiang, Jiawei published the artcileSynthesis and biological evaluation of innovative thiourea derivatives as PHGDH inhibitors, Application of 4-(Naphthalen-1-yl)thiazol-2-amine, the publication is Chemical Papers (2020), 74(11), 3873-3886, database is CAplus.

Abstract: In order to discover novel compounds with inhibitory activity against 3-phosphoglycerate dehydrogenase (PHGDH), a series of thiourea derivatives were designed and synthesized based on the structural modification of compound 5d. Compound 5d emerged from the visual database of ChemDiv of 200,000 small mols. by docking score ranking. Inhibition experiments on PHGDH activity of newly synthesized compounds were performed in vitro. Compounds with more than 30% inhibitory rate at 25μM on PHGDH were screened for IC₅₀ measurement. Anti-proliferative activity of 4a, 5a, 6e, 6n against A2780, MDA-MB-468, MDA-MB-231 and HEK293T in vitro was evaluated. The results showed that the compound 4a displayed the best inhibitory activity on PHGDH among the newly synthesized compounds, and the compounds 4a, 5a, 6n had a better proliferation inhibition effect on human A2780 cell line than NCT-503 reported previously. In addition, 2D interaction diagrams revealed potential action modes of active compounds with PHGDH.

Chemical Papers published new progress about 56503-96-9. 56503-96-9 belongs to thiazole, auxiliary class Thiazole,Amine,Naphthalene, name is 4-(Naphthalen-1-yl)thiazol-2-amine, and the molecular formula is C40H35N7O8, Application of 4-(Naphthalen-1-yl)thiazol-2-amine.

Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/thiazole,
Thiazole | chemical compound | Britannica