Category: 87988-94-1

Related Products of 87988-94-1, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.87988-94-1, Name is 5-Methylisoxazol-4-amine, molecular formula is C4H6N2O. In a article£¬once mentioned of 87988-94-1

SYNTHESIS AND THERMAL DECOMPOSITION OF 4-AZIDOISOXAZOLES

The diazonium salts derived from 1a,b decompose at 0 deg C to give alpha-cyanodiazoketones 3a,b and, in the case of 1b, also the N-hydroxytriazole 4.The azides 2a,b were prepared from the diazonium salts at -15 deg C.The diazonium salt from 1c is more stable and can be converted into the azide 2c at 0 deg C, along with formation of 5 as a side product.Kinetic measurements have been carried out for the thermal fragmentation of 2a – c which indicated that the reactions occur by a concerted mechanism.

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Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

Application of 87988-94-1, Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. 87988-94-1, Name is 5-Methylisoxazol-4-amine,introducing its new discovery.

65. Herstellung von substituierten 2-Aminooxazol-4-carbonitrilen.

During our synthetic programme to convert 4-isoxazolylthioureas 3 into the corresponding carbodiimides 5, a side reaction leading to the hitherto unknown 2-aminooxazole-4-carbonitriles 6 was observed.By selecting appropriate reaction conditions, it was possible to improve the yields of the carbodiimides 5 as well as of the novel oxazole-carbonitriles 6 at will, thus allowing the synthesis of 6 to be conducted in very good yields.To overcome the difficulty of isolating unstable carbodiimides, the synthesis of 6 is best carried out in a one-pot procedure.A limited mechanistics study showed that the formation of 6 proceeds via 5 as the only intermediate.The stability of the N=C=N bonds against base attack (depending strongly on both sterical hindrance and electronic-density factors) forms the only limitation of this new synthetic pathway to oxazole-4-carbonitriles.

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Isoxazole | C3H3NO – PubChem

Synthetic Route of 87988-94-1, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.87988-94-1, Name is 5-Methylisoxazol-4-amine, molecular formula is C4H6N2O. In a article£¬once mentioned of 87988-94-1

USE OF PYRIMIDINE DERIVATIVES IN THE MANUFACTURE OF A MEDICAMENT FOR PREVENTION AND/OR TREATMENT OF ALZHE1MER’S DISEASE

The present invention relates to a new use of pyrimidine derivatives of formula I, as a free base or a pharmaceutically acceptable salt thereof in the manufacture of a medicament in the treatment and/or prophylaxis of Alzheimer’s Disease

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Electric Literature of 87988-94-1, 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 Patent, and a compound is mentioned, 87988-94-1, 5-Methylisoxazol-4-amine, introducing its new discovery.

UREA DERIVATIVE MODULATORS OF TRYPTOPHAN CATABOLISM

There are described compounds of formula (I): (I) and their use as a medicament in the treatment of diseases associated with the abnormal or elevated catabolism of tryptophan, such as, cancer, immunosuppression, viral infection, depression, a neurodegenerative disorder, trauma, age-related cataracts, organ transplant rejection, or an autoimmune disorder in a patient.

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Reference of 87988-94-1, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.87988-94-1, Name is 5-Methylisoxazol-4-amine, molecular formula is C4H6N2O. In a Patent£¬once mentioned of 87988-94-1

4- [3- (ARYLOXY) BENZYLIDENE] -3-METHYL PIPERIDINE ARYL CARBOXAMIDE COMPOUNDS USEFUL AS FAAH INHIBITORS

The present invention relates to compounds of Formula (I), wherein Ar is optionally substituted phenyl or heteroaryl and X, Y and Z are independently N or CH; or a pharmaceutically acceptable salt thereof; processes for the preparation of the compounds; intermediates used in the preparation of the compounds; compositions containing the compounds; and uses of the compounds in treating diseases or conditions associated with fatty acid amide hydrolase (FAAH) activity.

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Isoxazole | C3H3NO – PubChem

Application of 87988-94-1, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.87988-94-1, Name is 5-Methylisoxazol-4-amine, molecular formula is C4H6N2O. In a article£¬once mentioned of 87988-94-1

Anti-Helicobacter pylori agents. 5. 2-(Substituted guanidino)-4-arylthiazoles and aryloxazole analogues

To extend the SAR study of guanidinothiazoles as a structurally novel class of anti-H. pylori agents, a series of 2-(substituted guanidino)-4-arylthiazoles and some 4-aryloxazole analogues were synthesized and evaluated for antimicrobial activity against H. pylori. Some of them were also subjected to H2 antagonist and gastric antisecretory assays. Several arylthiazoles were identified as potent anti-H. pylori agents, and of these, thienylthiazole derivative 44 exhibited the strongest activity (MIC = 0.0065 mug/mL) among the compounds obtained in our guanidinothiazole studies. Although 44 was void of H2 antagonist activity, pyridylthiazole derivative 39 had both potent anti-H. pylori and H2 antagonist activities. Thiazolylthiazole derivative 46 also showed potent anti-H. pylori activity, but the H2 antagonist activity was weak. On the other hand, no attractive activities were found in pyrimidyl, oxazolyl, isoxazolyl, imidazolyl, and oxadiazolylthiazole derivatives. The anti-H. pylori activity of the aryloxazole analogues was weaker than those of the corresponding arylthiazole derivatives, though they had potent H2 antagonist activity.

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87988-94-1, Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 87988-94-1, Name is 5-Methylisoxazol-4-amine

SYNTHESIS AND THERMAL DECOMPOSITION OF 4-AZIDOISOXAZOLES

The diazonium salts derived from 1a,b decompose at 0 deg C to give alpha-cyanodiazoketones 3a,b and, in the case of 1b, also the N-hydroxytriazole 4.The azides 2a,b were prepared from the diazonium salts at -15 deg C.The diazonium salt from 1c is more stable and can be converted into the azide 2c at 0 deg C, along with formation of 5 as a side product.Kinetic measurements have been carried out for the thermal fragmentation of 2a – c which indicated that the reactions occur by a concerted mechanism.

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Isoxazole | C3H3NO – PubChem

87988-94-1, 5-Methylisoxazol-4-amine is a Isoxazoles compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

87988-94-1, To a stirred slurry of 4-methyl-3-[6-(4-methylpiperazm-l-yl)-4-oxoquinazolin-3(4H)-yl]benzoic acid (0.38 g) in DMF (50 ml) was added 4-amino-5-methylisoxazole hydrochloride (0.27 g), EtaATU (0.68 g) and triethylamine (0.55 ml) and the reaction mixture stirred at room temperature for 16 hours. The reaction mixture was diluted with water and extarcted with ethyl acetate. The ethyl aceate layer was washed with IN NaOH and dried (magnesium sulphate). The residue was purified by column chromatography on a silica column using initially ethyl acetate and then a 4: 1 mixture of ethyl acetate and methanol as eluent. There was thus obtained the title compound (150 mg); NMR Spectrum: (DMSOd6) 2.15 (s, 3Eta), 2.40 (s, 3H), 2.83 (m, 4H), 3.15 (s, 3H), 3.40 (m, 4H), 7.50 (d, IH), 7.60 (d, IH), 7.64 (m, 2H), 7.98 (s, IH), 8.04 (d, IH), 8.13 (s, IH), 8.70 (s, IH), 10.10 (s, IH); Mass Spectrum: M+H+ 459.The 4-amino-5-methylisoxazole hydrochloride used as starting material was prepared using the procedures detailed in J. Org. Chem 1987, 2714-2716.

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Reference£º
Patent; ASTRAZENECA AB; ASTRAZENECA UK LIMITED; WO2006/90143; (2006); A1;,
Isoxazole – Wikipedia
Isoxazole | C3H3NO – PubChem