Day: October 17, 2022

The author of 《Copper-catalyzed one-pot coupling reactions of aldehydes (ketones), tosylhydrazide and 2-amino(benzo)thiazoles: An efficient strategy for the synthesis of N-alkylated (benzo)thiazoles》 were Xie, Zengyang; Chen, Ruijiao; Ma, Mingfang; Kong, Lingdong; Liu, Jun; Wang, Cunde. And the article was published in Applied Organometallic Chemistry in 2019. Computed Properties of C7H5ClN2S The author mentioned the following in the article:

An efficient and practical C-N bond formation methodol. for the synthesis of N-(alkyl)benzothiazoles I [R = H, 4-Me, 6-Br, etc.; R1 = n-Pr, Ph, 4-MeOC6H4, etc.] and N-(alkyl)thiazoles II [R2 = H, Me; R3 = Ph, 2-MeC6H4, 2-naphthyl, etc.; R2R3 = (CH2)5; R4 = H, 4-Me, 5-Me] was developed via Cu-catalyzed one-pot two-step cross-coupling of 2-aminobenzothiazoles/2-aminothiazoles and aldehydes/ketones with tosylhydrazide. This cross-coupling reaction proceeded smoothly and tolerated a broad range of functional groups. A variety of functionalized benzothiazoles/thiazoles were obtained in moderate to high yields. Notably, gram-scale synthesis of fanetizole (anti-inflammatory drug) was also realized through this protocol. In the experimental materials used by the author, we found 6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9Computed Properties 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.Computed Properties 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 2018,Liu, Juan-Juan; Lu, Yan-Ju; Zhao, Zhen-Dong; Xu, Shi-Chao; Bi, Liang-Wu published 《Synthesis and Cytotoxic Activity of Amides from Isopimaric Acid》.Chemistry of Natural Compounds published the findings.Name: 5-Bromothiazol-2-amine The information in the text is summarized as follows:

The amide derivatives were synthesized from isopimaric acid and characterized by spectroscopy. These amides were examined in vitro for their cytotoxic activity against four cancer cell lines. The majority of the screened compounds displayed better inhibitory activity than isopimaric acid, and many amides displayed promising cytotoxic activity against hepatocarcinoma (HepG-2), breast carcinoma (MDA-MB-231), and prostate adenocarcinoma (PC-3). The substituent type, number, and position in the benzene and heterocyclic rings have an important influence on cytotoxicity against the three tested cancer cell lines. In the experimental materials used by the author, we found 5-Bromothiazol-2-amine(cas: 3034-22-8Name: 5-Bromothiazol-2-amine)

5-Bromothiazol-2-amine(cas: 3034-22-8) belongs to anime. Acylation is one of the most important reactions of primary and secondary amines; a hydrogen atom is replaced by an acyl group (a group derived from an acid, such as RCOOH or RSO3H, by removal of ―OH, such as RC(=O)―, RS(O)2―, and so on). Reagents may be acid chlorides (RCOC1, RSO2C1), anhydrides ((RCO)2O), or even esters (RCOOR′); the products are amides of the corresponding acids.Name: 5-Bromothiazol-2-amine

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

COA of Formula: C7H5ClN2SOn November 27, 2019 ,《Chagas Disease Drug Discovery: Multiparametric Lead Optimization against Trypanosoma cruzi in Acylaminobenzothiazole Series》 appeared in Journal of Medicinal Chemistry. The author of the article were Fleau, Charlotte; Padilla, Angel; Miguel-Siles, Juan; Quesada-Campos, Maria T.; Saiz-Nicolas, Isabel; Cotillo, Ignacio; Cantizani Perez, Juan; Tarleton, Rick L.; Marco, Maria; Courtemanche, Gilles. The article conveys some information:

Acylaminobenzothiazole hits were identified as potential inhibitors of T. cruzi replication, a parasite responsible for Chagas Disease. We selected compound 1, N-(6-chlorobenzo[d]thiazol-2-yl)cyclopropanecarboxamide, for lead optimization, aiming to improve in parallel its anti-T. cruzi activity (IC50 = 0.630μM) and its human metabolic stability (human clearance = 9.57mL/min/g). A total of 39 analogs of 1 were synthesized and tested in vitro. We established a multiparametric structure activity relationship, allowing optimization of both anti-parasite activity, physicochem. parameters and ADME properties. We identified compound 50, N-(5-Fluoro-6-(trifluoromethyl)benzothiazol-2-yl)cyclopropanecarboxamide, as an advanced lead with an improved anti-T. cruzi activity in vitro (IC50 = 0.079μM), an enhanced metabolic stability (Human Clearance = 0.413mL/min/g) and opportunity for oral route of administration. After tolerability assessment, compound 50 demonstrated a promising in vivo efficacy. In the experiment, the researchers used 6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9COA of Formula: 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.COA of Formula: C7H5ClN2SThiazoles 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

Gong, Xiaobei; Luo, Hao; Wu, Xing; Liu, Hao; Sun, Chengwu; Chen, Shicheng published an article in Indian Journal of Microbiology. The title of the article was 《Production of Red Pigments by a Newly Isolated Talaromyces aurantiacus Strain with LED Stimulation for Screen Printing》.Related Products of 30931-67-0 The author mentioned the following in the article:

Microbial pigments have been widely applied to printing in food, textile, and paper industries as a sustainable alternative to synthetic dyes. Herein, we isolated a novel Talaromyces aurantiacus strain with a strong ability to produce red pigments. We further studied pigment production conditions, stability, screen printing application, and bioactivities. Our results showed that sucrose was a favorable carbon source and the addition of L-histidine significantly enhanced the production of red pigments. Pigment production was strictly photo-regulated with effective wavelengths around 450 nm (blue light). We mixed the red pigments with cellulosic materials and explored their application potentials for screen printing on paper, cotton fabrics, and polymeric carriers. The printing d. was significantly improved from 0.3 to 0.7 by overlay printing. T. aurantiacus pigments could be stably stored at pH 5-11, temperature – 10 to 70°C, and redox potential – 200 to 300 mV. Moreover, the stable ranges were extended to pH 1-11 and temperature over 100°C after screen-printed on paper. The red pigments exhibited antioxidant activity toward 2,2′-Azinobis-(3-ethylbenzthiazoline-6-sulfonate) (IC50 10.4 mg L-1 in solution). Our results further indicated the red pigments by T. aurantiacus was environmentally friendly based on acetylcholinesterase activity assay. In addition to this study using ABTS Diammonium, there are many other studies that have used ABTS Diammonium(cas: 30931-67-0Related Products of 30931-67-0) was used in this study.

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Hydrogen peroxide (H2O2) and peroxy acids generally add an oxygen atom to the nitrogen of amines. With primary amines, this step is normally followed by further oxidation, leading to nitroso compounds, RNO, or nitro compounds, RNO2. Secondary amines are converted to hydroxylamines, R2NOH, and tertiary amines to amine oxides, R3NO.Related Products of 30931-67-0

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

Jing, Yingjun; Diao, Yujia; Yu, Xueqing published an article on February 28 ,2019. The article was titled 《Free radical-mediated conjugation of chitosan with tannic acid: Characterization and antioxidant capacity》, and you may find the article in Reactive & Functional Polymers.Related Products of 30931-67-0 The information in the text is summarized as follows:

Chitosan (CS) is a natural biopolymer with versatile applications. In this work, CS was functionalized with tannic acid (TA) by a free radical grafting procedure to improve its antioxidant capacity. The resulting TA-conjugated CS (TA-CS) showed a high TA equivalent content of 267.1 ± 5.4 mg TAE/g. The formation of TA-CS was verified by UV-vis, FTIR, and 1H NMR analyses. Moreover, TA-CS showed a lower thermal stability and crystallinity than CS and exhibited a good water-solubility of 15.0 ± 0.3 mg/mL. The DPPH radical scavenging activity of TA-CS reached a maximum of 91.6%, which was 6.4-fold higher than that of CS. Similar results were also observed in ABTS and hydroxyl radical scavenging assays. Moreover, TA-CS showed a higher superoxide radical scavenging activity and ferrous ion chelating activity than both TA and CS. These results suggest that conjugating with TA is an available way to enhance the antioxidant capacity of CS. In the experimental materials used by the author, we found ABTS Diammonium(cas: 30931-67-0Related Products of 30931-67-0)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Nitrous acid converts secondary amines (aliphatic or aromatic) to N-nitroso compounds (nitrosamines): R2NH + HNO2 → R2N―NO. Some nitrosamines are potent cancer-inducing substances, and their possible formation is a serious consideration when nitrites, which are salts of nitrous acid, are present in foods or pharmaceutical preparations. Tertiary amines give rise to nitrosamines more slowly; an alkyl group is eliminated as an aldehyde or ketone, along with nitrous oxide, N2O.Related Products of 30931-67-0

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

Lin, Zhi-Qi; Shao, Wei; Xu, Juan; Sheng, Guo-Ping published an article in Science of the Total Environment. The title of the article was 《Accurately quantifying the reductive capacity of microbial extracellular polymeric substance by mediated electrochemical oxidation method》.Recommanded Product: 30931-67-0 The author mentioned the following in the article:

The reductive capacity of microbial extracellular polymeric substances (EPS) plays important roles in environmental processes involved in heavy metal detoxification and organic contaminant degradation However, the crucial parameter to evaluate the reductive capacity of EPS, electron donating capacity (EDC) lacks a quant. approach. In this study, a novel mediated electrochem. oxidation (MEO) method was developed to investigate the EDCs of microbial EPS extracted from Shewanella oneidensis MR-1 (S. oneidensis MR-1), Escherichia coli (E. coli) and activated sludge. The results indicate that the MEO approach rapidly and accurately quantifies the EDCs of microbial EPS. S. oneidensis MR-1 EPS possessed the highest EDC value ascribed to their specific redox proteins components. EDCs of S. oneidensis MR-1 EPS were dependent on measurement conditions and increased with growing solution pH and applied potential. EDCs of S. oneidensis MR-1 EPS were depleted gradually during the redox reaction with irreversible oxidation of EPS. The reductive property of microbial EPS was accurately evaluated by quantifying the EDCs of EPS using the MEO approach, as well as their potential in environmental remediation.ABTS Diammonium(cas: 30931-67-0Recommanded Product: 30931-67-0) was used in this study.

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Amines characteristically form salts with acids; a hydrogen ion, H+, adds to the nitrogen. With the strong mineral acids (e.g., H2SO4, HNO3, and HCl), the reaction is vigorous. Salt formation is instantly reversed by strong bases such as NaOH. Neutral electrophiles (compounds attracted to regions of negative charge) also react with amines; alkyl halides (R′X) and analogous alkylating agents are important examples of electrophilic reagents.Recommanded Product: 30931-67-0

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

Maliyappa, M. R.; Keshavayya, J.; Mahanthappa, Mallappa; Shivaraj, Y.; Basavarajappa, K. V. published an article on January 5 ,2020. The article was titled 《6-Substituted benzothiazole based dispersed azo dyes having pyrazole moiety: Synthesis, characterization, electrochemical and DFT studies》, and you may find the article in Journal of Molecular Structure.Computed Properties of C7H5ClN2S The information in the text is summarized as follows:

In the present work discusses synthesis, structural characterization and electrochem. investigation on some azo dyes derived from substituted benzothiazoles. The conventional diazo-coupling method was adopted to afford the heterocyclic azo dyes of benzothiazoles having pyrazole moiety. The obtained azo dyes were characterized by FT-IR, UV-visible, fluorescence, 1HNMR and, mass spectrometric techniques. The quantum chem. studies (DFT) was also used to interpret the structural properties of the compounds by using B3LYP program at 6-311++ (d, p) basis set. Further, the cyclic voltammetry was used to study the electrochem. behavior of the synthesized azo dyes in 0.1 M H2SO4 solution on a glassy carbon electrode at different scan rates. The experimental process involved the reaction of 6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9Computed Properties 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.Computed Properties 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 2013,Suzuki, Kenji; Hamada, Yoshio; Nguyen, Jeffrey-Tri; Kiso, Yoshiaki published 《Novel BACE1 inhibitors with a non-acidic heterocycle at the P1′ position》.Bioorganic & Medicinal Chemistry published the findings.Name: 5-Bromothiazol-2-amine The information in the text is summarized as follows:

We have reported potent peptidic and non-peptidic BACE1 inhibitors with a hydroxymethylcarbonyl (HMC) isostere as a substrate transition-state mimic. However, our potent inhibitors possess a tetrazole ring at the P1′ position. It is desirable that central nervous system (CNS) drugs do not possess an acidic moiety. In this study, we synthesized non-acidic BACE1 inhibitors with heterocyclic derivatives at the P1′ position. KMI-1764 I exhibited potent inhibitory activity (IC50 = 27 nM). Interestingly, these non-acidic inhibitors tended to follow the quant. structure-activity relationship (QSAR) equation and interacted with BACE1-Arg235 in the binding model. The experimental process involved the reaction of 5-Bromothiazol-2-amine(cas: 3034-22-8Name: 5-Bromothiazol-2-amine)

5-Bromothiazol-2-amine(cas: 3034-22-8) 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.Name: 5-Bromothiazol-2-amine

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

《Ferrocene conjugates linked by 1,2,3-triazole and their Zn(II) and Cu(II) complexes: Synthesis, characterization and biological activity》 was written by Jakopec, Silvio; Pantalon Juraj, Natalija; Brozovic, Anamaria; Jadresko, Dijana; Peric, Berislav; Kirin, Srecko I.; Raic-Malic, Silvana. HPLC of Formula: 95-24-9 And the article was included in Applied Organometallic Chemistry on April 30 ,2022. The article conveys some information:

Ferrocene derivatives with mono- Py2NCH2Trz-1-R (8a-c; Py = 2-pyridyl, Trz = 1,2,3-triazol-5-yl; R = Fc, FcCH2, FcCHMe) and bis-1,2,3-triazolyl fc(CH2-1-TrzCH2NPy2)2(9, fc = 1,1′-ferrocenediyl) and ArN(CH2Trz-1-R)2 (10a-13c; R = Fc, FcCH2, FcCHMe; Ar = Ph, 2-benzothiazolyl, 6-chloro-2-benzothiazolyl, 6-nitro-2-benzothiazolyl) chelating groups were synthesized by regioselective copper(I)-catalyzed 1,3-dipolar cycloaddition of terminal alkynes with ferrocene azides. Metal complexes of the ligands were prepared with Cu(II) and Zn(II) salts. Crystal structures of ligands 9 and 11a were determined, as well as the structures of complexes [Cu(8a)2](CF3SO3)2 (8a-Cu) and [Cu(8c)2(MeOH)2](BF4)2 (8c-Cu). In addition to NMR and UV-Vis spectroscopy, the metal complexes were characterized by cyclic voltammetry. The cytotoxic effect of ferrocene conjugates and their Zn(II) and Cu(II) complexes was explored, and cell cycle anal. was performed. The complex [Cu(8c)2](CF3SO3)2 showed the most prominent and selective cytotoxicity on cervical carcinoma (HeLa), ovarian cancer (MES-OV), non-small cell lung cancer (A549) and breast carcinoma (MDA-MB-231) cells. This complex increased cell population in the S and G2/M phase of the cell cycle, which was accompanied by an increase of the cells present in the sub-G0/G1 fraction. In the part of experimental materials, we found many familiar compounds, such as 6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9HPLC of Formula: 95-24-9)

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.HPLC of Formula: 95-24-9Thiazoles 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

《Rhodium-Catalyzed Chemo-, Regio-, and Enantioselective Allylation of 2-Aminothiazoles with Terminal Allenes》 was published in European Journal of Organic Chemistry in 2019. These research results belong to Zheng, Jun; Woerl, Benjamin; Breit, Bernhard. Recommanded Product: 95-24-9 The article mentions the following:

A rhodium-catalyzed chemo-, regio- and enantioselective intermol. coupling reaction of 2-aminobenzothiazoles with terminal allenes is reported. The new reaction displays a wide substrate scope for both reaction partners to deliver the allylation products in good yields, with excellent regio- and enantioselectivity. This novel methodol. was further applied in an efficient synthesis of chiral isothiourea. In the part of experimental materials, we found many familiar compounds, such as 6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9Recommanded Product: 95-24-9)

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.Recommanded Product: 95-24-9Thiazoles 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