Day: October 21, 2022

Lan, Xiaohao; Zhang, Yueli; Jia, Xiaoying; Dong, Siqi; Liu, Yang; Zhang, Mengmeng; Guo, Jiao; Cao, Junyuan; Guo, Yu; Xiao, Gengfu; Wang, Wei published an article on January 31 ,2022. The article was titled 《Screening and identification of Lassa virus endonuclease-targeting inhibitors from a fragment-based drug discovery library》, and you may find the article in Antiviral Research.Synthetic Route of C7H5ClN2S The information in the text is summarized as follows:

Lassa virus (LASV) belongs to the Old World genus Mammarenavirus, family Arenaviridae, and order Bunyavirales. Arenavirus contains a segmented neg.-sense RNA genome, which is in line with the bunyavirus and orthomyxoviruses. The segmented neg.-sense RNA viruses utilize a cap-snatching strategy to provide primers cleavaged from the host capped mRNA for viral mRNA transcription. As a similar strategy and the conformational conservation shared with these viruses, the endonuclease (EN) would serve as an attractive target for developing broad-spectrum inhibitors. Using the LASV minigenome (MG) system, we screened a fragment-based drug discovery library and found that two hits, F1204 and F1781, inhibited LASV MG activity. Both hits also inhibited the prototype arenavirus Lymphocytic choriomeningitis virus (LCMV) MG activity. Furthermore, both hits effectively inhibited authentic LCMV and severe fever with thrombocytopenia syndrome virus (SFTSV) infections. Similarly, both hits could inhibit the activity of LASV, LCMV, and SFTSV EN. The combination of either compound with an arenavirus entry inhibitor had significant synergistic antiviral effects. Moreover, both hits were found to be capable of binding to LASV EN with a binding affinity at the micromolar level. These findings provide a basis for developing the hits as potential candidates for the treatment of segmented neg.-sense RNA virus infections. After reading the article, we found that the author used 6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9Synthetic Route of C7H5ClN2S)

6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9) belongs to thiazoles. Thiazoles are a class of five-membered rings containing nitrogen and sulfur with excellent antitumor, antiviral and antibiotic activities.Synthetic Route of C7H5ClN2SThe thiazole ring has been identified as a central feature of numerous natural products, perhaps the most famous example of which is epothilone.

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

In 2006,Barrett, Olivia J.; Childs, Jessica L.; Disney, Matthew D. published 《Chemical microarrays to identify ligands that bind pathogenic cells》.ChemBioChem published the findings.SDS of cas: 3034-22-8 The information in the text is summarized as follows:

The use of microarrays to identify new ligands for cells by interrogating their binding to a library of organic ligands is described. The advantages of using microarrays include assay miniaturization and the manner in which ligands are displayed in a small area. This display mimics interactions that occur at cell-cell interfaces and amplifies binding affinities. In addition, a series of array surfaces was tested for resisting nonspecific binding, which includes amine-, BSA, and agarose- (aldehyde-) coated glass, plain glass, and glass coated with ethanolamine prepared in a two-step procedures from amine-coated slides using the pathogenic Pseudomonas aeruginosa, which forms sticky biofilms. The agarose slides offer an alternative as a more general arraying substrate to study the binding of microarray-immobilized ligands to cells. After reading the article, we found that the author used 5-Bromothiazol-2-amine(cas: 3034-22-8SDS of cas: 3034-22-8)

5-Bromothiazol-2-amine(cas: 3034-22-8) belongs to anime. Amines can be classified according to the nature and number of substituents on nitrogen. Aliphatic amines contain only H and alkyl substituents. Aromatic amines have the nitrogen atom connected to an aromatic ring.Important amines include amino acids, biogenic amines, trimethylamine, and aniline. Inorganic derivatives of ammonia are also called amines, such as monochloramine (NClH2).SDS of cas: 3034-22-8

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Application In Synthesis of 6-Chlorobenzothiazol-2-ylamineOn October 26, 2021 ,《An efficient one-pot synthesis of 2-aminobenzothiazoles from substituted anilines using benzyltrimethylammonium dichloroiodate and ammonium thiocyanate in DMSO:H2O》 was published in Tetrahedron Letters. The article was written by Dass, Reuben; Peterson, Matt A.. The article contains the following contents:

Treatment of anilines with benzyltrimethylammonium dichloroiodate and ammonium thiocyanate in DMSO:H2O at 70°C gave the 2-aminobenzothiazoles I [R = 6-F, 6-Me, 4-F, etc.] in excellent isolated yields (75-97% and ave. yield for all substrates is 90%). The reaction worked well for 2(4)mono-2,4-di- or 3,4,5-tri-substituted anilines and a wide range of both electron donating groups (MeO, HO, CF3O, Me) and electron withdrawing groups (NO2, CN, CO2Et, CO2H, Cl, F) were well tolerated. This method provided a useful alternative to other methods that are either less efficient (requiring 3-7 fold equivalent of reagents) or utilize highly toxic and corrosive liquid Br2 as the oxidizing agent. The experimental part of the paper was very detailed, including the reaction process of 6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9Application In Synthesis of 6-Chlorobenzothiazol-2-ylamine)

6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9) belongs to thiazoles. Thiazoles are a class of five-membered rings containing nitrogen and sulfur with excellent antitumor, antiviral and antibiotic activities.Application In Synthesis of 6-Chlorobenzothiazol-2-ylamineThiazoles can also be used as protected formyl groups, which can be released in later stages of complex natural product synthesis.

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

In 2021,Analytical Sciences included an article by Leng, Yan; Bu, Shengjun; Li, Zhongyi; Hao, Zhuo; Ma, Chengyou; He, Xiuxia; Wan, Jiayu. COA of Formula: C18H24N6O6S4. The article was titled 《A colorimetric immunosensor based on Hemin@MI nanozyme composites, with peroxidase-like activity for point-of-care testing of pathogenic E. coli O157:H7》. The information in the text is summarized as follows:

Recently, nanozymes have become a topic of particular interest due to their high activity level, stability and biocompatibility. In this study, a visual, sensitive and selective point-of-care immunosensor was established to test the pathogen Escherichia coli O157:H7 (E. coli O157:H7). Hemin and magainin I (MI) hybrid nanocomposites (Hemin@MI) with peroxidase-mimicking activities were synthesized via a “”one-pot”” method, involving the simple mixing of an antimicrobial peptide (MI) against E. coli O157:H7 and hemin in a copper sulfate sodium phosphate saline buffer. Hemin@MI nanocomposites integrating target recognition and signal amplification were developed as signal probes for the point-ofcare colorimetric detection of pathogenic E. coli O157:H7. Hemin@MI nanocomposites exhibit excellent peroxidase activity for the chromogenic reaction of ABTS, which allows for the visual point-of-care testing of E. coli O157:H7 in the range of 102 to 108 CFU/mL, with a limit of detection of 85 CFU/mL. These data suggest this immunosensor provides accessible and portable assessments of pathogenic E. coli O157:H7 in real samples. In the experiment, the researchers used ABTS Diammonium(cas: 30931-67-0COA of Formula: C18H24N6O6S4)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Left-handed and right-handed forms (mirror-image configurations, known as optical isomers or enantiomers) are possible when all the substituents on the central nitrogen atom are different (i.e., the nitrogen is chiral). With amines, there is extremely rapid inversion in which the two configurations are interconverted.COA of Formula: C18H24N6O6S4

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

In 2021,RSC Medicinal Chemistry included an article by Gao, Kai; Shaabani, Shabnam; Xu, Ruixue; Zarganes-Tzitzikas, Tryfon; Gao, Li; Ahmadianmoghaddam, Maryam; Groves, Matthew R.; Doemling, Alexander. Category: thiazole. The article was titled 《Nanoscale, automated, high throughput synthesis and screening for the accelerated discovery of protein modifiers》. The information in the text is summarized as follows:

Hit finding in early drug discovery is often based on high throughput screening (HTS) of existing and historical compound libraries, which can limit chem. diversity, is time-consuming, very costly, and environmentally not sustainable. On-the-fly compound synthesis and in situ screening in a highly miniaturized and automated format has the potential to greatly reduce the medicinal chem. environmental footprint. Here, acoustic dispensing technol. has been used to synthesize a library in a 1536 well format based on the Groebke-Blackburn-Bienayme’ reaction (GBB-3CR) on a nanomole scale. The unpurified library was screened by differential scanning fluorimetry (DSF) and cross-validated using microscale thermophoresis (MST) against the oncogenic protein-protein interaction menin-MLL. Several GBB reaction products were found as μM menin binder, and the structural basis of the interactions with menin was elucidated by co-crystal structure anal. Miniaturization and automation of the organic synthesis and screening process can lead to an acceleration in the early drug discovery process, which is an alternative to classical HTS and a step towards the paradigm of continuous manufacturing6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9Category: thiazole) was used in this study.

6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9) belongs to thiazoles. Thiazoles are a class of five-membered rings containing nitrogen and sulfur with excellent antitumor, antiviral and antibiotic activities.Category: thiazoleThe thiazole ring has been identified as a central feature of numerous natural products, perhaps the most famous example of which is epothilone.

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

The author of 《A convenient colorimetric bacteria detection method utilizing chitosan-coated magnetic nanoparticles》 were Le, Thao Nguyen; Tran, Tai Duc; Kim, Moon Il. And the article was published in Nanomaterials in 2020. Related Products of 30931-67-0 The author mentioned the following in the article:

An effective novel strategy to detect bacteria is promising because it may improve human health by allowing early diagnosis and timely treatment of bacterial infections. Here, we report a simple, reliable, and economical colorimetric assay using the peroxidase-like activity of chitosan-coated iron oxide magnetic nanoparticles (CS-MNPs). When CS-MNPs are incubated with a sample containing bacterial cells such as the gram-neg. Escherichia coli or the gram-pos. Staphylococcus aureus, the neg.-charged bacterial membrane interacts with pos.-charged chitosan on the surface of CS-MNPs, thus resulting in significant reduction of their peroxidase-like activity presumably by a hindrance in the accessibility of the neg. charged substrate, 2-2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) to the pos.-charged CS-MNPs. This simple colorimetric strategy allowed the rapid detection of bacterial cells down to 104 CFU mL-1 by the naked eye and 102 CFU mL-1 by spectrophotometry within 10 min. Based on the results, we anticipate that the CS-MNPs-based assay has great potential for the on-site diagnosis of bacterial infections in facility-limited or point-of-care testing (POCT) environments. In the part of experimental materials, we found many familiar compounds, such as ABTS Diammonium(cas: 30931-67-0Related Products of 30931-67-0)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Examples of direct uses of amines and their salts are as corrosion inhibitors in boilers and in lubricating oils (morpholine), as antioxidants for rubber and roofing asphalt (diarylamines), as stabilizers for cellulose nitrate explosives (diphenylamine), as protectants against damage from gamma radiation (diarylamines), as developers in photography (aromatic diamines), as flotation agents in mining, as anticling and waterproofing agents for textiles, as fabric softeners, in paper coating, and for solubilizing herbicides.Related Products of 30931-67-0

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

In 2008,Lemos, Valfredo Azevedo; Baliza, Patricia Xavier; Lago de Carvalho, Anaildes; Oliveira, Rafael Vasconcelos; Teixeira, Leonardo Sena Gomes; Bezerra, Marcos Almeida published 《Development of a new sequential injection in-line cloud point extraction system for flame atomic absorption spectrometric determination of manganese in food samples》.Talanta published the findings.Recommanded Product: 3034-22-8 The information in the text is summarized as follows:

A preconcentration method for manganese determination by sequential injection cloud point extraction with subsequent detection by flame at. absorption spectrometry (FAAS) has been developed. The enrichment of Mn was performed after a preliminary online cloud point extraction and entrapment of manganese-containing surfactant aggregated within a minicolumn packed with cotton. The laboratory-made reagent 4-(5′-bromo-2′-thiazolylazo)orcinol (Br-TAO) and the surfactant Triton X-114 were used for cloud point extraction The manganese ions were eluted with sulfuric acid solution and directly introduced into the FAAS. Chem. and flow variables affecting the preconcentration were studied. Using a sample volume of 2.80 mL the limit of detection and enrichment factor were calculated to be 0.5 μg L-1 and 14, resp. The sample frequency is 48 h-1, considering a total run cycle of 75 s. The accuracy of the proposed method has been demonstrated by the anal. of the certified reference biol. materials rice flour and tomato leaves. The method has been applied to determination of manganese in food samples. In the experimental materials used by the author, we found 5-Bromothiazol-2-amine(cas: 3034-22-8Recommanded Product: 3034-22-8)

5-Bromothiazol-2-amine(cas: 3034-22-8) belongs to anime. Amine, any member of a family of nitrogen-containing organic compounds that is derived, either in principle or in practice, from ammonia (NH3). Naturally occurring amines include the alkaloids, which are present in certain plants; the catecholamine neurotransmitters (i.e., dopamine, epinephrine, and norepinephrine); and a local chemical mediator, histamine, that occurs in most animal tissues.Recommanded Product: 3034-22-8

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

《Phenolic profile, antioxidant, and antidiabetic potential exerted by millet grain varieties》 was published in Antioxidants in 2020. These research results belong to Ofosu, Fred Kwame; Elahi, Fazle; Daliri, Eric Banan-Mwine; Chelliah, Ramachandran; Ham, Hun Ju; Kim, Joong-Hark; Han, Sang-Ik; Hur, Jang Hyun; Oh, Deog-Hwan. Synthetic Route of C18H24N6O6S4 The article mentions the following:

This study evaluated the potential antioxidant and antidiabetic properties in vitro of four millet grain varieties cultivated in South Korea. The free fractions were tested for their total antioxidant capacity using 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS+) and 2,2′-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assays, followed by α-glucosidase, α-amylase, and advanced glycation endproducts (AGEs) formation inhibition assays. The total phenolics, flavonoids, and condensed tannins in the free fractions ranged from 107.8 to 136.4 mg ferulic acid equivalent (FAE)/100 g, 101.3 to 115.8 mg catechin equivalent (CE)/100 g, and 17.65 to 59.54 mg catechin equivalent (CE)/100 g, resp. Finger Italian millet had the highest total phenolic content (136.4 mg FAE/100 g) and flavonoid content (115.8 mg CE/100 g). Barnyard and finger Italian millet showed the highest DPPH (IC50 = 359.6μg/mL and 436.25μg/mL, resp.) and ABTS radical scavenging activity (IC50 = 362.40μg/mL and 381.65μg/mL, resp.). Similarly, finger Italian millet also exhibited significantly lower IC50 values for the percentage inhibition of α-glucosidase (18.07μg/mL) and α-amylase (10.56μg/mL) as compared with acarbose (IC50 = 59.34μg/mL and 27.73μg/mL, resp.) and AGEs formation (33.68μg/mL) as compared with aminoguanidine (AG) (52.30μg/mL). All eight phenolic compounds identified in finger Italian millet were flavonoids, with flavanols being the predominant subclass. Taken together, millet flavonoids play important roles in the prevention and management of type 2 diabetes, and hence finger Italian millet has the potential to be developed as a functional food. The results came from multiple reactions, including the reaction of ABTS Diammonium(cas: 30931-67-0Synthetic Route of C18H24N6O6S4)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Examples of direct uses of amines and their salts are as corrosion inhibitors in boilers and in lubricating oils (morpholine), as antioxidants for rubber and roofing asphalt (diarylamines), as stabilizers for cellulose nitrate explosives (diphenylamine), as protectants against damage from gamma radiation (diarylamines), as developers in photography (aromatic diamines), as flotation agents in mining, as anticling and waterproofing agents for textiles, as fabric softeners, in paper coating, and for solubilizing herbicides.Synthetic Route of C18H24N6O6S4

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

《TTL proteins scaffold brassinosteroid signaling components at the plasma membrane to optimize signal transduction in Arabidopsis》 was written by Amorim-Silva, Vitor; Garcia-Moreno, Alvaro; Castillo, Araceli G.; Lakhssassi, Naoufal; Esteban del Valle, Alicia; Perez-Sancho, Jessica; Li, Yansha; Pose, David; Perez-Rodriguez, Josefa; Lin, Jinxing; Valpuesta, Victoriano; Borsani, Omar; Zipfel, Cyril; Macho, Alberto P.; Botella, Miguel A.. Formula: C18H24N6O6S4 And the article was included in Plant Cell on August 31 ,2019. The article conveys some information:

Brassinosteroids (BRs) form a group of steroidal hormones essential for plant growth, development, and stress responses. BRs are perceived extracellularly by plasma membrane receptor-like kinases that activate an interconnected signal transduction cascade, leading to the transcriptional regulation of BR-responsive genes. TETRATRICOPEPTIDE THIOREDOXIN-LIKE (TTL) genes are specific for land plants, and their encoded proteins are defined by the presence of protein-protein interaction motives, i.e., an intrinsic disordered region at the N terminus, six tetratricopeptide repeat domains, and a C terminus with homol. to thioredoxins. TTL proteins thus likely mediate the assembly of multiprotein complexes. Phenotypic, mol., and genetic analyses show that TTL proteins are pos. regulators of BR signaling in Arabidopsis (Arabidopsis thaliana). TTL3 directly interacts with a constitutively active BRASSINOSTEROID INSENSITIVE1 (BRI1) receptor kinase, BRI1-SUPPRESSOR1 phosphatase, and the BRASSINAZOLE RESISTANT1 transcription factor and associates with BR-SIGNALING KINASE1, BRASSINOSTEROID INSENSITIVE2 kinases, but not with BRI1-Associated KINASE1. A functional TTL3-green fluorescent protein (GFP) shows dual cytoplasmic plasma membrane localization. Depleting the endogenous BR content reduces plasma membrane localization of TTL3-GFP, while increasing BR content causes its plasma membrane relocalization, where it strengthens the association of BR signaling components. Our results reveal that TTL proteins promote BR responses and suggest that TTL proteins may function as scaffold proteins by bringing together cytoplasmic and plasma membrane BR signaling components.ABTS Diammonium(cas: 30931-67-0Formula: C18H24N6O6S4) was used in this study.

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Large quantities of aliphatic amines are made synthetically. The most widely used industrial method is the reaction of alcohols with ammonia at a high temperature, catalyzed by metals or metal oxide catalysts (e.g., nickel or copper). Mixtures of primary, secondary, and tertiary amines are thereby produced.Formula: C18H24N6O6S4

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica