thiazole归档 - Page 282 of 974 - Heterocyclic Building Blocks-Thiazole

Chu, Chee Chin’s team published research in European Journal of Lipid Science and Technology in 2019 | CAS: 30931-67-0

ABTS Diammonium(cas: 30931-67-0) 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.Related Products of 30931-67-0

《Development of Nanostructured Lipid Carriers (NLCs) Using Pumpkin and Kenaf Seed Oils with Potential Photoprotective and Antioxidative Properties》 was written by Chu, Chee Chin; Tan, Chin Ping; Nyam, Kar Lin. Related Products of 30931-67-0 And the article was included in European Journal of Lipid Science and Technology in 2019. The article conveys some information:

Both pumpkin and kenaf seed oil with carnauba wax (CW) and beeswax (BW) are used to develop nanostructured lipid carriers (NLCs) loaded with Uvinul T150 and Uvinul A Plus Granular for a UV protection formulation. The study aims to optimize the concentration and the type of seed oil in order to develop a stable NLC formulation with high entrapment efficiency, drug loading, antioxidant activities, and UV absorbing properties. The phys. properties of the NLCs are analyzed based on the mean particle size, polydispersity index (PDI), long-term storage stability, Fourier-transform IR spectroscopy (FT-IR), and differential scanning calorimetry (DSC). They are also compared for their entrapment efficiency, drug loading, in vitro antioxidant activities, and in vitro UV absorbing properties. The optimized NLC consists of 10% lipid phase and 1% Uvinul T150 and Uvinul A Plus Granular, resp. It has mean particle size of 238.20 ± 3.61 nm and remains phys. stable on storage at both 25 ± 2 and 40 ± 2°C. Spherical amorphous NLC structure with encapsulated UV filters is observed by transmission electron microscopy (TEM). Besides, it shows high entrapment efficiency (≥p95%) for both Uvinul T150 and Uvinul A Plus Granular in addition to its antioxidant activities as indicated by both DPPH and ABTS radical scavenging activities. In addition, the formulation had high UV absorbing properties, showing its potential to be utilized in the formation of sunscreen prototype. The preliminary study on pumpkin and kenaf seed oil shows bioactive potential with high antioxidant activities. The finding of kenaf seed oil-NLC can be applied in the cosmetic industry to produce a wide variety of environmental-friendly products with improved stability and beneficial properties. Also, the application of technol. by forming NLCs can be used to develop lotions, creams, etc. with multifunctional properties. Besides, NLCs as carriers for UV filters is proven in the present study to exhibit high entrapment efficiency and drug loading properties. This is beneficial in developing advanced cosmetic prototypes that possess broad spectrum effectiveness with fewer side effects. Nanostructure lipid carriers (NLCs) are applied to encapsulate UV filters with pumpkin and kenaf seed oils. Kenaf seed oil-NLC (F7) is selected as the best formulation for UV filters encapsulation. With spherical amorphous NLC structure, it shows high entrapment efficiency for the UV filters and antioxidant activities. Results indicate that F7 with high UV absorbing properties remains phys. stable upon 12 wk of storage period. The experimental part of the paper was very detailed, including the reaction process of ABTS Diammonium(cas: 30931-67-0Related Products of 30931-67-0)

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

Mikherdov, Alexander S.’s team published research in Journal of the American Chemical Society in 2016 | CAS: 3034-22-8

5-Bromothiazol-2-amine(cas: 3034-22-8) belongs to anime. Aniline, ethanolamines, and several other amines are major industrial commodities used in making rubber, dyes, pharmaceuticals, and synthetic resins and fibres and for a host of other applications. Most of the numerous methods for the preparation of amines may be broadly divided into two groups: (1) chemical reduction (replacement of oxygen with hydrogen atoms in the molecule) of members of several other classes of organic nitrogen compounds and (2) reactions of ammonia or amines with organic compounds.Electric Literature of C3H3BrN2S

In 2016,Mikherdov, Alexander S.; Kinzhalov, Mikhail A.; Novikov, Alexander S.; Boyarskiy, Vadim P.; Boyarskaya, Irina A.; Dar’in, Dmitry V.; Starova, Galina L.; Kukushkin, Vadim Yu. published 《Difference in Energy between Two Distinct Types of Chalcogen Bonds Drives Regioisomerization of Binuclear (Diaminocarbene)PdII Complexes》.Journal of the American Chemical Society published the findings.Electric Literature of C3H3BrN2S The information in the text is summarized as follows:

The reaction of cis-[PdCl2(CNXyl)2] (Xyl = 2,6-Me2C6H3) with various 1,3-thiazol- and 1,3,4-thiadiazol-2-amines in chloroform gives a mixture of two regioisomeric binuclear diaminocarbene complexes. For 1,3-thiazol-2-amines the isomeric ratio depends on the reaction conditions and kinetically (KRs) or thermodynamically (TRs) controlled regioisomers were obtained at room temperature and on heating, resp. In CHCl3 solutions, the isomers are subject to reversible isomerization accompanied by the cleavage of Pd-N and C-N bonds in the carbene fragment XylNCN(R)Xyl. Results of DFT calculations followed by the topol. anal. of the electron d. distribution within the formalism of Bader’s theory (AIM method) reveal that in CHCl3 solution the relative stability of the regioisomers (ΔGexp = 1.2 kcal/mol; ΔGcalcd = 3.2 kcal/mol) is determined by the energy difference between two types of the intramol. chalcogen bonds, viz. S···Cl in KRs (2.8-3.0 kcal/mol) and S···N in TRs (4.6-5.3 kcal/mol). In the case of the 1,3,4-thiadiazol-2-amines, the regioisomers are formed in approx. equal amounts and, accordingly, the energy difference between these species is only 0.1 kcal/mol in terms of ΔGexp (ΔGcalcd = 2.1 kcal/mol). The regioisomers were characterized by elemental analyses (C, H, N), HRESI+-MS and FTIR, 1D (1H, 13C{1H}) and 2D (1H,1H-COSY, 1H,1H-NOESY, 1H,13C-HSQC, 1H,13C-HMBC) NMR spectroscopies, and structures of six complexes (three KRs and three TRs) were elucidated by single-crystal X-ray diffraction.5-Bromothiazol-2-amine(cas: 3034-22-8Electric Literature of C3H3BrN2S) was used in this study.

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

Mayr, Sebastian A.’s team published research in International Journal of Molecular Sciences in 2021 | CAS: 30931-67-0

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Many important products require amines as part of their syntheses. Methylamine is utilized in the production of the analgesic meperidine (trade name Demerol) and the photographic developer Metol (trademark), and dimethylamine is used in the synthesis of the antihistamine diphenhydramine (trade name Benadryl), the solvent dimethylformamide (DMF), and the rocket propellant 1,1-dimethylhydrazine. The synthesis of the insect repellent N,N-diethyl-m-toluamide (DEET) incorporates diethylamine while that of the synthetic fibre Kevlar requires aromatic amines.Related Products of 30931-67-0

The author of 《Oxidation of Various Kraft Lignins with a Bacterial Laccase Enzyme》 were Mayr, Sebastian A.; Subagia, Raditya; Weiss, Renate; Schwaiger, Nikolaus; Weber, Hedda K.; Leitner, Johannes; Ribitsch, Doris; Nyanhongo, Gibson S.; Guebitz, Georg M.. And the article was published in International Journal of Molecular Sciences in 2021. Related Products of 30931-67-0 The author mentioned the following in the article:

Modification of kraft lignin (KL), traditionally uses harsh and energy-demanding phys. and chem. processes. In this study, the potential of the bacterial laccase CotA (spore coating protein A) for oxidation of KL under mild conditions was assessed. Thereby, the efficiency of CotA to oxidize both softwood and hardwood KL of varying purity at alk. conditions was examined For the resp. type of wood, the highest oxidation activity by CotA was determined for the medium ash content softwood KL (MA_S) and the medium ash content hardwood KL (MA_H), resp. By an up to 95% decrease in fluorescence and up to 65% in phenol content coupling of the structural lignin units was indicated. These results correlated with an increase in viscosity and mol. weight, which increased nearly 2 and 20-fold for MA_H and about 1.3 and 6.0-fold for MA_S, resp. Thus, this study confirms that the CotA laccase can oxidize a variety of KL at alk. conditions, while the origin and purity of KL were found to have a major impact on the efficiency of oxidation Under the herein tested conditions, it was observed that the MA_H KL showed the highest susceptibility to CotA oxidation when compared to the other hardwood KLs and the softwood KLs. Therefore, this could be a viable method to produce sustainable resins and adhesives. The experimental process involved the reaction of ABTS Diammonium(cas: 30931-67-0Related Products of 30931-67-0)

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

Kottawar, S S’s team published research in E-Journal of Chemistry in 2011 | 57493-24-0

E-Journal of Chemistry published new progress about Aldimines Role: SPN (Synthetic Preparation), PREP (Preparation). 57493-24-0 belongs to class thiazole, and the molecular formula is C9H7N3O2S, Electric Literature of 57493-24-0.

Kottawar, S. S.; Goswami, S. V.; Thorat, P. B.; Bhusare, S. R. published the artcile< L-Proline as an efficient catalyst for synthesis of aldimines at ambient temperature condition>, Electric Literature of 57493-24-0, the main research area is thiazolamine aromatic aldehyde condensation proline catalyst; aldimine green preparation.

Some new aldimines were synthesized from substituted 2-aminothiazoles and different aromatic aldehydes using L-proline as an efficient catalyst. Easy work up, higher yields, and shorter reaction time are the advantages of the method.

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

Kennington, Stuart C D’s team published research in Organic Letters in 2019-01-04 | 96-53-7

Organic Letters published new progress about C-C bond formation (enantioselective). 96-53-7 belongs to class thiazole, and the molecular formula is C3H5NS2, Electric Literature of 96-53-7.

Kennington, Stuart C. D.; Taylor, Adam J.; Romea, Pedro; Urpi, Felix; Aullon, Gabriel; Font-Bardia, Merce; Ferre, Laura; Rodrigalvarez, Jesus published the artcile< Direct and Asymmetric Nickel(II)-Catalyzed Construction of Carbon-Carbon Bonds from N-Acyl Thiazinanethiones>, Electric Literature of 96-53-7, the main research area is asym nickel catalyzed carbon bond acyl thiazinanethione; peperomin D total synthesis; dimethoxyphenyl methylphenylethyl propanamide preparation crystal mol structure.

A wide array of new N-acyl thiazinanethiones are employed in a number of direct and enantioselective carbon-carbon-bond-forming reactions catalyzed by nickel(II) complexes. The electrophilic species are mostly prepared in situ from ortho esters, Me ethers, acetals, and ketals, which makes the overall process highly efficient and exptl. straightforward. Theor. calculations indicate that the reactions proceed through an open transition state in a SN1-like mechanism. The utility of this novel procedure has been demonstrated by the asym. preparation of synthetically useful intermediates and the total synthesis of peperomin D.

Organic Letters published new progress about C-C bond formation (enantioselective). 96-53-7 belongs to class thiazole, and the molecular formula is C3H5NS2, Electric Literature of 96-53-7.

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

Fagundez, Catherine’s team published research in Heterocyclic Letters in 2013 | 96929-05-4

Heterocyclic Letters published new progress about 96929-05-4. 96929-05-4 belongs to class thiazole, and the molecular formula is C12H18N2O4S, Formula: C12H18N2O4S.

Fagundez, Catherine; Serra, Gloria published the artcile< Studies on synthesis of amino acid derived thiazoles. Preparation of bis-thiazoles as key fragments of aerucyclamide analogs>, Formula: C12H18N2O4S, the main research area is thiazole bisthiazole preparation.

The scope and limitations of Hantzsch, modified Hantzsch and Kelly methodologies for the synthesis of amino acid derived thiazoles are presented. In addition, the syntheses of bisthiazoles as key fragments of natural products and analogs are described. The Kelly’s methodol. followed by oxidation provides the desired N-Cbz protected thiazole after purification According with the authors’ results the Fmoc or Boc protecting groups are not compatible with the conditions used in this methodol. Modifications of the temperature and reagents used in the Hantzsch thiazole synthesis enabled the preparation of chiral thiazole building blocks without racemization and in good yields.

Heterocyclic Letters published new progress about 96929-05-4. 96929-05-4 belongs to class thiazole, and the molecular formula is C12H18N2O4S, Formula: C12H18N2O4S.

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

Ulmschneider, Sarah’s team published research in Journal of Medicinal Chemistry in 2005-03-10 | 1003-32-3

Journal of Medicinal Chemistry published new progress about Homo sapiens. 1003-32-3 belongs to class thiazole, and the molecular formula is C4H3NOS, Synthetic Route of 1003-32-3.

Ulmschneider, Sarah; Mueller-Vieira, Ursula; Klein, Christian D.; Antes, Iris; Lengauer, Thomas; Hartmann, Rolf W. published the artcile< Synthesis and Evaluation of (Pyridylmethylene)tetrahydronaphthalenes/-indanes and Structurally Modified Derivatives: Potent and Selective Inhibitors of Aldosterone Synthase>, Synthetic Route of 1003-32-3, the main research area is heteroarylidene aromatic compound stereoisomer preparation aldosterone oxidase inhibition; pyridylmethylene tetrahydronaphthalene indane stereoisomer preparation aldosterone oxidase inhibition; structure heteroarylidene aromatic compound stereoisomer aldosterone oxidase inhibition; CYP11B2 inhibiting heteroarylidene aromatic compound stereoisomer preparation; selective aldosterone oxidase inhibiting heteroarylidene aromatic compound; mol modeling heteroarylidene aromatic compound binding CYP11B1 CYP11B2.

Heteroarylmethylidene-substituted aromatic compounds such as heteroarylmethyleneindanes I (X = CH, N) are prepared as selective inhibitors of aldosterone synthase (CYP11B2) in the presence of related enzymes such as steroid 11β-hydroxylase (CYP11B1), CYP17, and CYP19. Substituted aromatic ketones, particularly substituted 1-indanones, are reduced with sodium borohydride; substitution of the aromatic alcs. with triphenylphosphine hydrobromide, and Wittig olefination of heterocyclic aldehydes with the generated triphenylphosphonium bromides yields heteroarylmethylene-substituted aromatic compounds such as I (X = CH, N). Both the (E) and the (Z) olefin stereoisomers of many of the heteroarylmethylene-substituted aromatic compounds are prepared Pyridinylmethyleneindane I (X = CH) is the most active inhibitor of CYP11B2 tested, with an IC50 value of 7 nM; pyrimidinylmethyleneindane I (X = N) is the most selective CYP11B2 inhibitor of those tested, with IC50 values of 27 nM for CYP11B2 and 3179 nM for CYP11B1. Mol. modeling of selected compounds and of their complexes with CYP11B1 and CYP11B2 is used to understand the dependence of CYP11B2 inhibition and selectivity on inhibitor structure.

Journal of Medicinal Chemistry published new progress about Homo sapiens. 1003-32-3 belongs to class thiazole, and the molecular formula is C4H3NOS, Synthetic Route of 1003-32-3.

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

Lakhan, Ram’s team published research in Journal of the Indian Chemical Society in 1984-06-30 | 57493-24-0

Journal of the Indian Chemical Society published new progress about Local anesthetics. 57493-24-0 belongs to class thiazole, and the molecular formula is C9H7N3O2S, COA of Formula: C9H7N3O2S.

Lakhan, Ram; Singh, Om Prakash published the artcile< Local anesthetics. Part-III: synthesis of 2-(N-substituted or N,N-disubstituted aminoacetamido)-4 arylthiazoles>, COA of Formula: C9H7N3O2S, the main research area is aminoacetamidothiazole aryl local anesthetic preparation; phenylthiazole aminoacetamido local anesthetic preparation.

Title compounds I [R = 4-O2NC6H4, 3-O2NC6H4, 2,5-(MeO)2C6H3; R1 = Et, Me2CH, Me2CHCH2, MeEtCH; R2 = H, Et; R1R2 = piperidino] were prepared E.g., cyclocondensation of 4-O2NC6H4COMe with thiourea gave thiazole II, chloroacetylation of which followed by amination with EtNH2 gave I (R = 4-O2NC6H4, R1 = Et, R2 = H). I HCl (R = 3-O2NC6H4, R1 = MeEtCH, R2 = H) showed local anesthetic activity superior to that of procaine HCl.

Journal of the Indian Chemical Society published new progress about Local anesthetics. 57493-24-0 belongs to class thiazole, and the molecular formula is C9H7N3O2S, COA of Formula: C9H7N3O2S.

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

Nizamuddin, N D’s team published research in Indian Journal of Heterocyclic Chemistry in 2020-12-31 | 57493-24-0

Indian Journal of Heterocyclic Chemistry published new progress about Acetophenones Role: RCT (Reactant), RACT (Reactant or Reagent). 57493-24-0 belongs to class thiazole, and the molecular formula is C9H7N3O2S, Synthetic Route of 57493-24-0.

Nizamuddin, N. D.; Abdul Ahad, Hindustan; Devanna, Nayakanti published the artcile< Synthesis and molecular docking studies of some 1,2-dimethyl-3(4-substituted phenyl-1,3-thiazol-2-yl)2,3-dihydroquinazolin-4(1H)-ones as anticancer agents>, Synthetic Route of 57493-24-0, the main research area is dimethyl phenyl thiazolyl dihydroquinazolinone preparation mol docking.

Synthesis of 1, 2-dimethyl-3(4-substituted phenyl-1,3-thiazol-2-yl)2,3-dihydro quinazolin-4(1H)-ones derivatives I [R = 4-Me, 2-OH, 4-Cl, etc.] was effected by refluxing 1,2-dimethylbenzoxazine-4-one with different 4-substituted phenyl-1,3-thiazol-2-amines. Synthesized compoundsI were characterized through elemental anal., IR, proton NMR, and Carbon-13 NMR. Mol. docking studies were carried out using Schrodinger Glide (version 2020_1) which was docked into selective P38alpha and Activin A Receptor Type 1 (ACVR1) Activin receptor-like kinase-2 (ALK2) kinase with Protein Data Bank (PDB) code 3GC7, 6GI6. Based on the docking score of synthesized quinazolin-4-one derivatives, I co-crystallized ligands interaction was evaluated with 5-fluorouracil (5-FU) as a reference drug. Compounds I [R = H, 4-MeO, 3-NH2, 2,4-OH] with P38alpha, I [R = 2-OH, 3-NH2, 4-Cl, 2,4-OH] with ACVR1 (ALK2) kinase score were -7.265, -7.078, -7.058 and -6.836; -8.929, -8.749, -8.735 and -8.464 Kcal/mol against enzymes responsible for cancer treatment. The results indicated that quinazolin-4-one derivatives I scored better than ligand and 5-FU.

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

Bumbu, Valentina D’s team published research in Organic Letters in 2013-06-07 | 171877-39-7

Organic Letters published new progress about Acylation catalysts (stereoselective). 171877-39-7 belongs to class thiazole, and the molecular formula is C10H11NS2, Application of C10H11NS2.

Bumbu, Valentina D.; Yang, Xing; Birman, Vladimir B. published the artcile< Kinetic Resolution of N-Acyl-Thiolactams via Catalytic Enantioselective Deacylation>, Application of C10H11NS2, the main research area is kinetic resolution acyl thiolactam catalytic enantioselective deacylation benzotetramisole.

Methanolysis of N-acylthiazolidin-2-thiones and -oxazolidin-2-thiones in the presence of acyl transfer catalyst benzotetramisole (BTM) proceeds in a highly enantioselective fashion thus enabling kinetic resolution of these substrates [e.g., treatment of thiolactam (±)-I with MeOH, catalyst II and PhCO2H afforded (S)-III + (R)-I with s = 84].

Organic Letters published new progress about Acylation catalysts (stereoselective). 171877-39-7 belongs to class thiazole, and the molecular formula is C10H11NS2, Application of C10H11NS2.

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