Month: July 2021

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. SDS of cas: 141-30-0. Introducing a new discovery about 141-30-0, Name is 3,6-Dichloropyridazine

A novel strategy for efficient synthesis of various substituted heterocycles as kinase-directed combinatorial libraries is described. The general scheme involves capture of various dichloroheterocycles onto solid support and further elaborations by aromatic substitution with amines at elevated temperature or by anilines, boronic acids, and phenols via palladium-catalyzed cross-coupling reactions, thus the scaffold itself is transformed into a diversity element within the combinatorial scheme. Libraries consisting of discrete and highly diverse heterocyclic small molecules constructed with these chemistries are currently being evaluated in a variety of cell and protein-based assays. Copyright

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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N1675 – PubChem

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, Recommanded Product: 19064-67-6, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 19064-67-6, Name is 6-Chloro-3-hydroxypyridazine, molecular formula is C4H3ClN2O

The present invention is directed to substituted pyridinone compounds which are useful as therapeutic agents for the treatment of central nervous system disorders associated with phosphodiesterase 10 (PDE10). The present invention also relates to the use of such compounds for treating neurological and psychiatric disorders, such as schizophrenia, psychosis or Huntington’s disease, and those associated with striatal hypofunction or basal ganglia dysfunction.

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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N735 – PubChem

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. Recommanded Product: 141-30-0. Introducing a new discovery about 141-30-0, Name is 3,6-Dichloropyridazine

The preparations and spectral data for nine new N,N’-chelating ligands (5)-(13), each consisting of a pyrazole group N-linked to an azine or azole, are described.

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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N1904 – PubChem

Related Products of 28682-70-4, 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.In a document type is Article, and a compound is mentioned, 28682-70-4, Pyridazine-4,5-diamine, introducing its new discovery.

4-Nitro-3-R1-6-R2-pyridazines (1) (a, R1 = R2 =2-pyridyl; b, R1 = H, R2 = phenyl; c, R1 = H, R2 = p-methoxyphenyl; d, R1 = R2 = H) are aminated by liquid ammonia/potassium permanganate to the corresponding 5-amino-4-nitropyridazines 3a-d.The 4-cyano-3-R1-6-R2-pyridazines 4a,b are only aminated in the presence of potassium amide in liquid ammonia/potassium permanganate to give the 5-amino-4-cyanopyridazines 6a,b.The 5-amino-4-nitropyridazines 3a,b,d are converted to the 4,5-diaminopyridazines 7a,b,d by reduction over a Pd/C catalyst.Reaction of7b with glyoxal leads to 5-phenylpyrazino<2,3-d>pyridazine (8b).

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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N359 – PubChem

In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Product Details of 141-30-0, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 141-30-0, name is 3,6-Dichloropyridazine. In an article，Which mentioned a new discovery about 141-30-0

Using molecular modeling and rationally designed structural modifications, the multi-target structure?activity relationship for a series of ranitidine analogs has been investigated. Incorporation of a variety of isosteric groups indicated that appropriate aromatic moieties provide optimal interactions with the hydrophobic and pi?pi interactions with the peripheral anionic site of the AChE active site. The SAR of a series of cyclic imides demonstrated that AChE inhibition is increased by additional aromatic rings, where 1,8-naphthalimide derivatives were the most potent analogs and other key determinants were revealed. In addition to improving AChE activity and chemical stability, structural modifications allowed determination of binding affinities and selectivities for M1?M4 receptors and butyrylcholinesterase (BuChE). These results as a whole indicate that the 4-nitropyridazine moiety of the JWS-USC-75IX parent ranitidine compound (JWS) can be replaced with other chemotypes while retaining effective AChE inhibition. These studies allowed investigation into multitargeted binding to key receptors and warrant further investigation into 1,8-naphthalimide ranitidine derivatives for the treatment of Alzheimer’s disease.

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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N1702 – PubChem

Reference of 15456-86-7, Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. 15456-86-7, Name is 4-Bromo-1,2-dihydropyridazine-3,6-dione,introducing its new discovery.

The invention relates to compounds of formula (I), wherein R1 is a group selected from hydrogen, alkyl, aryl, aryalkil, heteroaryl, heteroarylalkyl, alkylcarbonyl, arylcarbonyl, arylalkylcarbonyl, alkoxycarbonyl, aryloxycarbonyl, arylalkoxycarbonyl, heterocycloalkoxycarbonyl, alkylsulfonyl, arylsulfonyl, arylalkylsulfonyl, phosphonic and Si(Ra)2Rb, Y is a group selected from HN?NH and N?R2, R3 is a hydrogen atom, an alkyl, cycloalkyl, aryl, arylalkyl group, R4 is hydrogen atom or an alkyl group, enantiomers, diastereoisomers and the salts thereof.

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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N2787 – PubChem

Synthetic Route of 932-22-9, A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 932-22-9, Name is 4,5-Dichloro-3(2H)-pyridazinone, molecular formula is C4H2Cl2N2O. In a Article，once mentioned of 932-22-9

4-Substitued azaindolines, which are isosteres of indolines, are useful synthetic building blocks that reduce the risk of bioactivation induced idiosyncratic toxicity have been prepared. Multigram routes to 2,3-dihydro-1H-pyrrolo[2,3-c]pyridine-4-triflate 16, 2,3-dihydro-1H-pyrrolo[2,3- b]pyridine-4-carbonitrile 20 and 4-chloro-2,3-dihydro-1H-pyrrolo[2,3-d] pyridazine 30 are outlined.

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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N2352 – PubChem

Reference of 141-30-0, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.141-30-0, Name is 3,6-Dichloropyridazine, molecular formula is C4H2Cl2N2. In a Article，once mentioned of 141-30-0

An efficient two-step synthesis of 3,6-diaminopyridazine from 3,6-dichloropyridazine is reported. In this synthetic procedure, 4-methoxybenzylamine was used as a nitrogen source to substitute the chloro groups of 3,6-dichloropyridazine to form N,N’-bis-(4-methoxybenzyl)-pyridazine- 3,6-diamine. The 4-methoxybenzyl groups were then removed by treatment with hydrochloric acid to provide the target 3,6-diaminopyridazine with an overall yield of 78%. Copyright Taylor & Francis Group, LLC.

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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N1966 – PubChem

Synthetic Route of 2164-61-6, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.2164-61-6, Name is Pyridazine-3-carboxylic acid, molecular formula is C5H4N2O2. In a Patent，once mentioned of 2164-61-6

The present invention relates to compounds of the formula I wherein A, R1 to R7 are defined in the description, and to pharmaceutically acceptable salts thereof, their manufacture, pharmaceutical compositions containing them and their use as medicaments for the treatment and/or prophylaxis of diseases which can be treated with HDL-cholesterol raising agents, such as particularly dyslipidemia, atherosclerosis and cardiovascular diseases.

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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N465 – PubChem

Related Products of 141-30-0, Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. 141-30-0, Name is 3,6-Dichloropyridazine,introducing its new discovery.

Therapeutic compounds are disclosed having the general formula (I) that are useful for the treatment of metabolic disorders, including type II diabetes. The compounds have activity as agonists of GPR119. Compounds having the stereochemistry of formula (la) may also demonstrate DPP-IV inhibitory activity

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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N1224 – PubChem