Tag: M.W:200-300

Reference of 4474-86-6, The transformation of simple hydrocarbons into more complex and valuable products via catalytic C¨CH bond functionalisation has revolutionised modern synthetic chemistry. 4474-86-6, Name is N-Cbz-D-Asparagine, SMILES is O=C(N)C[C@H](C(O)=O)NC(OCC1=CC=CC=C1)=O, belongs to phthalazines compound. In a article, author is Elmasry, Ghada F., introduce new discover of the category.

Design and synthesis of novel PARP-1 inhibitors based on pyridopyridazinone scaffold

Various pyridopyridazinone derivatives were designed as Poly(ADP-ribose) polymerase-1 (PARP-1) inhibitors. The pyridopyridazinone scaffold was used as an isostere of the phthalazine nucleus of the lead compound Olaparib in addition to some modifications in the tail part of the molecule. Preliminary biological evaluation indicated that most compounds possessed inhibitory potencies comparable to Olaparib in nanomolar level. The best PARP-1 inhibitory activity was observed for compound 8a with (IC50 = 36 nM) compared to Olaparib as a reference drug (IC50 = 34 nM). Molecular modeling simulation revealed that, the designed compounds docked well into PARP-1 active site and their complexes are stabilized by three key hydrogen bond interactions with both Gly863 and Ser904 as well as other favorable pi-pi and hydrogen-pi stacking interactions with Tyr907 and Tyr896, respectively. Computational ADME study predicted that the target compounds 8a and 8e have proper pharmacokinetic and drug-likeness properties. These outcomes afford a new structural framework for the design of novel inhibitors for PARP-1.

Reference of 4474-86-6, One of the oldest and most widely used commercial enzyme inhibitors is aspirin, which selectively inhibits one of the enzymes involved in the synthesis of molecules that trigger inflammation. you can also check out more blogs about 4474-86-6.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition, 24650-42-8, Name is 2,2-Dimethoxy-2-phenylacetophenone, SMILES is COC(OC)(C(=O)C1=CC=CC=C1)C1=CC=CC=C1, in an article , author is Vinnakota, Chitra, once mentioned of 24650-42-8, Category: phthalazines.

An alpha 5 GABAA Receptor Inverse Agonist, alpha 5IA, Attenuates Amyloid Beta-Induced Neuronal Death in Mouse Hippocampal Cultures

Alzheimer’s disease (AD) is a progressive neurodegenerative disorder for which no cognition-restoring therapies exist. Gamma-aminobutyric acid (GABA) is the primary inhibitory neurotransmitter in the brain. Increasing evidence suggests a remodeling of the GABAergic system in AD, which might represent an important therapeutic target. An inverse agonist of alpha 5 subunit-containing GABAA receptors (alpha 5GABAARs), 3-(5-Methylisoxazol-3-yl)-6-[(1-methyl-1,2,3-triazol-4-yl)methyloxy]-1,2,4-triazolo[3-a]phthalazine (alpha 5IA) has cognition-enhancing properties. This study aimed to characterize the effects of alpha 5IA on amyloid beta (A beta(1-42))-induced molecular and cellular changes. Mouse primary hippocampal cultures were exposed to either A beta(1-42) alone, or alpha 5IA alone, alpha 5IA with A beta(1-42) or vehicle alone, and changes in cell viability and mRNA expression of several GABAergic signaling components were assessed. Treatment with 100 nM of alpha 5IA reduced A beta(1-42)-induced cell loss by 23.8% (p < 0.0001) after 6 h and by 17.3% after 5 days of treatment (p < 0.0001). Furthermore, we observed an A beta(1-42)-induced increase in ambient GABA levels, as well as upregulated mRNA expression of the GABAAR alpha 2,alpha 5,beta 2/3 subunits and the GABABR R1 and R2 subunits. Such changes in GABARs expression could potentially disrupt inhibitory neurotransmission and normal network activity. Treatment with alpha 5IA restored A beta(1-42)-induced changes in the expression of alpha 5GABAARs. In summary, this compound might hold neuroprotective potential and represent a new therapeutic avenue for AD. Interested yet? Read on for other articles about 24650-42-8, you can contact me at any time and look forward to more communication. Category: phthalazines.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Chemistry is traditionally divided into organic and inorganic chemistry. The former is the study of compounds containing at least one carbon-hydrogen bonds. 1149-26-4, Name is Z-L-Val-OH, molecular formula is C13H17NO4, belongs to phthalazines compound, is a common compound. In a patnet, author is Dabiri, Minoo, once mentioned the new application about 1149-26-4, COA of Formula: C13H17NO4.

Palladium-Catalyzed Direct ortho-C-H Bond Sulfonylation and Halogenation of Phthalazine-1,4-diones

The regio- and chemo-selective Pd-catalyzed C-H activation methods have been successfully reported for directed C-H sulfonation and halogenation of pyridazinedione with arylsulfonyl chlorides and N-halosuccinimide, respectively. These protocols are compatible with a range of various functional groups and exhibit excellent regio-selectivity under mild reaction conditions by use of inexpensive and readily accessible reagents.

We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, 1149-26-4. The above is the message from the blog manager. COA of Formula: C13H17NO4.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

23981-47-7, Name is 2-(6-Methoxynaphthalen-2-yl)acetic acid, molecular formula is C13H12O3, belongs to phthalazines compound, is a common compound. In a patnet, author is Ziarani, Ghodsi Mohammadi, once mentioned the new application about 23981-47-7, Recommanded Product: 23981-47-7.

Efficient One-Pot Solvent-Free Synthesis of 1H-Pyrazolo[1,2-b]phthalazine-5,10-diones Catalyzed by Sulfonic Acid Functionalized Nanoporous Silica (SBA-Pr-SO3H)

A green protocol has been developed for the synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones by one-pot cyclocondensation reaction of phthalhydrazide, aromatic aldehydes, and malononitrile or ethyl cyanoacetate using sulfonic acid functionalized SBA-15 (SBA-Pr-SO3H) as a heterogeneous solid acid catalyst under solvent-free conditions.

If you¡¯re interested in learning more about 23981-47-7. The above is the message from the blog manager. Recommanded Product: 23981-47-7.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics, Product Details of 2128-93-0, 2128-93-0, Name is 4-Benzoylbiphenyl, SMILES is C1=CC(=CC=C1)C2=CC=C(C=C2)C(C3=CC=CC=C3)=O, belongs to phthalazines compound. In a document, author is Pouramiri, Behjat, introduce the new discover.

Acidic ionic liquids: highly efficient catalysts for one-pot four-component synthesis of pyrazolo [1,2-b] phthalazines under solvent-free conditions

A series of novel pyrazolo[1,2-b]phthalazine-2-carboxylate derivatives has been synthesized via one-pot four-component reaction of aromatic aldehyde, ethyl or methyl acetoacetate, hydrazine hydrate, and phthalic anhydride in the presence of acidic ionic liquids such as 3-methyl-1-sulfo-1H-imidazol-3-ium chloride, 1,3-disulfo-1H-imidazol-3-ium chloride, and triethyl(sulfo)ammonium chloride as the catalyst. This method involves particular advantages such as environmentally benign catalysts, high yields of product, reusability of ionic liquids with high activity, short reaction times, no hazardous solvent, and easy workup.

A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 2128-93-0. Product Details of 2128-93-0.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Application of 17852-52-7, As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. 17852-52-7, Name is 4-Hydrazinylbenzenesulfonamide hydrochloride, SMILES is O=S(C1=CC=C(NN)C=C1)(N)=O.[H]Cl, belongs to phthalazines compound. In a article, author is Szavuly, Miklos, introduce new discover of the category.

Catalytic oxidation of alcohols and sulfides with hydrogen peroxide using isoindoline and phthalazine-based diiron complexes

A series of diiron(III) complexes of 1,3-bis(2′-arylimino)isoindoline, [(Fe(L)Cl)(2)O] and 1,4-di-(2′-aryl)aminophthalazine, [Fe-2(mu-OMe)(2)(H2L)Cl-4], including new structurally characterized ligands, 1,4-di-(4′-methyl-2′-thiazolyl)aminophthalazine and 1,4-di-(2′-benzthiazolyl)-aminophthalazine, have been characterized, and used as catalysts for the oxidation of para-substituted phenyl methyl sulfides and benzyl alcohols. Hammett correlations and kinetic isotope effect experiments support the involvement of electrophilic metal-based oxidants. In case of [(Fe(L-1,L-2)Cl)(2)O] catalysts, direct correlation has been found between the oxidative and catalase-like activity. (C) 2014 Elsevier B.V. All rights reserved.

Application of 17852-52-7, One of the oldest and most widely used commercial enzyme inhibitors is aspirin, which selectively inhibits one of the enzymes involved in the synthesis of molecules that trigger inflammation. you can also check out more blogs about 17852-52-7.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

54381-16-7, Name is 2,2′-((4-Aminophenyl)azanediyl)diethanol sulfate, molecular formula is C10H18N2O6S, belongs to phthalazines compound, is a common compound. In a patnet, author is Glisic, Biljana D., once mentioned the new application about 54381-16-7, HPLC of Formula: C10H18N2O6S.

Silver(I) complexes with phthalazine and quinazoline as effective agents against pathogenic Pseudomonas aeruginosa strains

Five silver(I) complexes with aromatic nitrogen-containing heterocycles, phthalazine (phtz) and quinazoline (qz), were synthesized, characterized and analyzed by single-crystal X-ray diffraction analysis. Although different AgX salts reacted with phtz, only dinuclear silver(I) complexes of the general formula {[Ag(X-O)(phtz-N)](2)(mu-phtz-N,N’)(2)} were formed, X = NO3- (1), CF3SO3- (2) and ClO4- (3). However, reactions of qz with an equimolar amount of AgCF3SO3 and AgBF4 resulted in the formation of polynuclear complexes, {[Ag(CF3SO3-O)(qz-N)](2)}(n) (4) and {[Ag(qz-N)][BF4]}(n) (5). Complexes 1-5 were evaluated by in vitro antimicrobial studies against a panel of microbial strains that lead to many skin and soft tissue, respiratory, wound and nosocomial infections. The obtained results indicate that all tested silver(I) complexes have good antibacterial activity with MIC (minimum inhibitory concentration) values in the range from 2.9 to 48.0 mu M against the investigated strains. Among the investigated strains, these complexes were particularly efficient against pathogenic Pseudomonas aeruginosa (MIC = 2.9-29 mu M) and had a marked ability to disrupt clinically relevant biofilms of strains with high inherent resistance to antibiotics. On the other hand, their activity against the fungus Candida albicans was moderate. In order to determine the therapeutic potential of silver(I) complexes 1-5, their antiproliferative effect on the human lung fibroblastic cell line MRC5, has been also evaluated. The binding of complexes 1-5 to the genomic DNA of P. aeruginosa was demonstrated by gel electrophoresis techniques and well supported by molecular docking into the DNA minor groove. All investigated complexes showed an improved cytotoxicity profile in comparison to the clinically used AgNO3. (C) 2015 Elsevier Inc. All rights reserved.

If you¡¯re interested in learning more about 54381-16-7. The above is the message from the blog manager. HPLC of Formula: C10H18N2O6S.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Synthetic Route of 4474-86-6, Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 4474-86-6, Name is N-Cbz-D-Asparagine, SMILES is O=C(N)C[C@H](C(O)=O)NC(OCC1=CC=CC=C1)=O, belongs to phthalazines compound. In a article, author is Chunduru, Venkata Sreenivasa Rao, introduce new discover of the category.

Synthesis of Aryl and Heteryl 1,3,4-Thiadiazinyl-phthalazine-1,4-dione Derivatives via a Multicomponent Approach

An expeditious one-pot method has been developed for the synthesis of aryl, heteryl thiadiazinyl-phthalazine-1,4-diones via a multicomponent approach. Reaction of phenacyl bromides with thiocarbohydrazide and phthalic anhydride afforded corresponding aryl thiadiazinyl-phthalazine-1,4-diones. Similarly, reaction of 3-(2-bromoacetyl)coumarins with thiocarbohydrazide and phthalic anhydride afforded required heteryl thiadiazinyl-phthalazine-1,4-diones under the same reaction conditions in excellent yields. The structure of all the synthesized compounds was confirmed from their analytical and spectral data.

Synthetic Route of 4474-86-6, The reactant in an enzyme-catalyzed reaction is called a substrate. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction.I hope my blog about 4474-86-6 is helpful to your research.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Chemistry, like all the natural sciences, SDS of cas: 502496-34-6, begins with the direct observation of nature¡ª in this case, of matter.502496-34-6, Name is 4-Bromo-2-fluoro-6-nitrotoluene, SMILES is CC1=C([N+]([O-])=O)C=C(Br)C=C1F, belongs to phthalazines compound. In a document, author is Berber, Nurcan, introduce the new discover.

Synthesis and evaluation of new phthalazine substituted beta-lactam derivatives as carbonic anhydrase inhibitors

A new series of phthalazine substituted beta-lactam derivatives were synthesized and their inhibitory effects on the activity of purified human carbonic anhydrase (hCA I and II) were evaluated. 2H-Indazolo[2,1-b]phthalazine-trione derivative was prepared with 4-nitrobenzaldehyde, dimedone, and phthalhydrazide in the presence of TFA in DMF, and the nitro group was reduced to 13-(4-aminophenyl)-3,3-dimethyl-3,4-dihydro-2H-indazolo[1,2-b]phthalazine-1,6,11(13H)-trione with SnCl2 center dot 2H(2)O. The reduced compound was reacted with different aromatic aldehydes, and phthalazine substituted imines were synthesized. The imine compounds undergo (2+2) cycloaddition reactions with ketenes to produce 2H-indazolo[2,1-b]phthalazine-trione substituted beta-lactam derivatives. The beta-lactam compounds were tested as inhibitors of the CA isoenzyme activity. The results showed that all the synthesized compounds inhibited the CA isoenzyme activity. 1-(4-(3,3-dimethyl-1,6,11-trioxo-2,3,4,6,11,13-hexahydro-1H-indazolo[1,2b]phthalazin-13-yl)phenyl)-2-oxo-4-p-tolylazetidin-3-yl acetate (IC50 = 6.97 A mu M for hCA I and 8.48 A mu M for hCA II) had the most inhibitory effect.

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions. you can also check out more blogs about 502496-34-6. SDS of cas: 502496-34-6.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 23981-47-7, Name is 2-(6-Methoxynaphthalen-2-yl)acetic acid, molecular formula is C13H12O3, belongs to phthalazines compound. In a document, author is Bunce, Richard A., introduce the new discover, Safety of 2-(6-Methoxynaphthalen-2-yl)acetic acid.

Efficient synthesis of selected phthalazine derivatives

Four phthalazine derivatives have been prepared from substituted 2-bromobenzaldehyde acetals by a sequence involving: (1) lithiation and formylation; (2) deprotection; and (3) condensative cyclization with hydrazine. Two additional phthalazines were prepared by a similar sequence following direct lithiation of benzaldehyde acetals substituted by anion-stabilizing groups at C3. These syntheses can be conveniently carried out to give phthalazines in overall yields of 40-70%.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 23981-47-7. Safety of 2-(6-Methoxynaphthalen-2-yl)acetic acid.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem