Heterocyclic Building Blocks-Benzisoxazole

Chemistry is traditionally divided into organic and inorganic chemistry. The former is the study of compounds containing at least one carbon-hydrogen bonds. 629-25-4, Name is Sodium Laurate, molecular formula is C12H23NaO2, belongs to Benzisoxazole compound, is a common compound. In a patnet, author is Naidu, Kalaga Mahalakshmi, once mentioned the new application about 629-25-4, Safety of Sodium Laurate.

Design, synthesis and biological evaluation of 5-(2-(4-(substituted benzo[d]isoxazol-3-yl) piperazin-1-yl)acetyl)indolin-2-one and 5-(2-(4-substitutedpiperazin-1-yl)acetyl)indolin-2-one analogues as novel anti-tubercular agents

A series of thirty-six novel 5-(2-(4-(benzo[d]isoxazol-3-yl)piperazin-1-yl)acetyl)indolin-2one and 5-(2-(4-substitutedpiperazin-1-yl)acetyl)indolin-2-one analogues were synthesized, characterized and screened for their in vitro anti-tubercular activity against Mycobacterium tuberculosis H37Rv strain. These compounds exhibited minimum inhibitory concentration between 1.56 and 50 mu g/mL. Among these derivatives, compounds 10c, 10d, 10j, 10o and 10v (MIC 6.25 mu g/mL) displayed moderate activity, while compounds 10e, 10l, 10q, 10w,10x, 12d, 12e and 12i (MIC 3.12 mu g/mL) showed good anti-tubercular activity and compounds 10f, 10k, 10p, 10r, 12f, 12j and 12k (MIC 1.56 mu g/mL) exhibited excellent anti-tubercular activity. In addition, MTT assay was accomplished on the active analogues of the series against mouse macrophage (RAW 264.7) cells to evaluate the cytotoxic effect of the newly synthesized compounds and selectivity index of the compounds was determined. (C) 2015 The Authors. Published by Elsevier B.V. on behalf of King Saud University.

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Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 6106-21-4, Name is Sodium succinate hexahydrate, SMILES is O=C([O-])CCC([O-])=O.[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[Na+].[Na+], in an article , author is Shastri, R. A., once mentioned of 6106-21-4, Quality Control of Sodium succinate hexahydrate.

Synthesis and antimicrobial activity of 3-propene 1,2-benzisoxazole derivatives

A convenient and eco-friendly synthesis of 3-propene 1,2-benzisoxazole derivatives 5a-h has been achieved in excellent yields from the corresponding substituted o-hydroxy acetophenones. Substituted o-hydroxy acetophenones 1a-h on treatment with acetaldehyde 2 in sodium hydroxide afford 1-(2′-hydroxy aryl)-2-butene-1-ones 3a-h. Compounds 3a-h on oximation yields 4a-h. Microwave irradiation of 4a-h on solid support silica gel affords 5a-h in very good yield. The resultant 3-propene 1,2-benzisoxazoles have been characterized by spectral data. The compounds 5a-h have been screened for their antimicrobial activity. Compounds 5b, d, e, g exhibit good antibacterial activity and compounds 5b-e exhibit market antifungal activity.

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Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 35963-20-3, Name is ((1R,4S)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonic acid, molecular formula is C10H16O4S. In an article, author is OKADA, M,once mentioned of 35963-20-3, Safety of ((1R,4S)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonic acid.

EFFECTS OF ZONISAMIDE ON EXTRACELLULAR LEVELS OF MONOAMINE AND ITS METABOLITE, AND ON CA-2+ DEPENDENT DOPAMINE RELEASE

The effects of zonisamide (3-sulfamoylmethyl-1,2-benzisoxazole), a novel anticonvulsant, on extracellular levels of monoamine and its metabolite in the striatum and hippocampus, and Ca2+ dependent monoamine release in the striatum of freely moving rats were studied by microdialysis. Zonisamide increased dopamine, homovanillic acid and 5-hydroxyindoleacetic acid, and decreased 3,4-dihydroxyphenylacetic acid in the rat striatum. However, zonisamide showed no effect on Ca2+ dependent dopamine release in the rat striatum. In the hippocampus, zonisamide increased dopamine, homovanillic acid, serotonin and 5-hydroxyindoleacetic acid and decreased 3,4-dihydroxyphenylacetic acid. The present results suggest that zonisamide facilitates dopaminergic and serotoninergic neurotransmission but does not affect Ca2+ dependent dopamine release within therapeutic plasma concentrations.

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Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics

Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. In an article, author is Howie, RA, once mentioned the application of 719-64-2, Name is 5-Chloro-3-phenylbenzo[c]isoxazole, molecular formula is C13H8ClNO, molecular weight is 229.66, MDL number is MFCD00014573, category is Benzisoxazole. Now introduce a scientific discovery about this category, SDS of cas: 719-64-2.

2-(2,1-benzoxazol-3-yl)-3,5-di-methoxyphenol and 3-phenyl-2,1-benzoxazole

The title compounds, C15H13NO4, (I), and C13H9NO, (II), are produced, along with the corresponding anilines, by the reduction of the appropriate o-nitrobenzophenones. In ( I), the planar benzisoxazole and phenol fragments are tilted relative to one another by a rotation of 53.02 (14)degrees about the bond joining them, and the molecules are linked into chains by phenol O-H…N and phenyl C-H…O-oxazole hydrogen bonds. The cell of (II) (space group I2/c) contains eight molecules in general positions, four more in the 2b sites, with twofold axial symmetry that induces a degree of disorder, and a further four as centrosymmetric pairs of complete molecules, each with an occupancy of one-half. The relative tilt of the planar fragments varies slightly from one molecule to another but is much less than that in (I), ranging from 8.8 (8) to 12.58 (15)degrees.

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Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics

Chemistry can be defined as the study of matter and the changes it undergoes. You¡¯ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology. 427-49-6, Name is alpha-Cyclopentylmandelic Acid, molecular formula is , belongs to Benzisoxazole compound. In a document, author is SATO, H, Recommanded Product: 427-49-6.

STUDIES ON URICOSURIC DIURETICS .3. SUBSTITUTED 1,3-DIOXOLO[4,5-F]-1,2-BENZISOXAZOLE-6-CARBOXYLIC ACIDS AND 1,3-DIOXOLO[4,5-G]-1,2-BENZISOXAZOLE-7-CARBOXYLIC ACIDS

A series of substituted 1,3-dioxolo[4,5-f]-1,2-benzisoxazole-6-carboxylic acids 13 and 1,3-dioxolo[4,5-g]-1,2-benzisoxazole-7-carboxylic acids 14 were synthesized and evaluated for diuretic and uricosuric activities in rats. Most of the benzisoxazole derivatives 13 and 14 showed potent diuretic activities. Moderate uricosuric activities were also found in 14a, 14b, and 14f.

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Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics

In an article, author is Minato, H, once mentioned the application of 4246-51-9, HPLC of Formula: C10H24N2O3, Name is 3,3′-((Oxybis(ethane-2,1-diyl))bis(oxy))bis(propan-1-amine), molecular formula is C10H24N2O3, molecular weight is 220.3092, MDL number is MFCD00059850, category is Benzisoxazole. Now introduce a scientific discovery about this category.

Protective effect of zonisamide, an antiepileptic drug, against transient focal cerebral ischemia with middle cerebral artery occlusion-reperfusion in rats

Purpose: The antiepileptic effects of zonisamide (ZNS) have been well documented experimentally and clinically. The purpose of this study was to examine whether ZNS reduces cerebral damage after transient focal ischemia in rats. Methods: Ischemia was induced by a transient occlusion of the left middle cerebral artery (MCA) with a 3-0 nylon monofilament for 90 min. Neurological evaluation was performed by measuring the event of neurological deficit of the contralateral forepaw and hindpaw at 10 min and 1 day after MCA occlusion (MCAo). Brain infarct size was determined by measuring triphenyltetrazonium chloride-negative stained area of the serial brain sections 1 day after MCAo. Results: The pre-or postischemic treatment with ZNS [(10-100 mg/kg p.o.), 30 min before and 4 h after or 15 min and 4 h after the occlusion] markedly reduced cerebral damage in the ipsilateral hemisphere and the neurological deficit induced by transient ischemia. The reducing effect on the damage was observed in the cortical and subcortical regions. Preischemic treatment with carbamazepine (CBZ 60 mg/kg p.o. twice 30 min before and 4 h after MCAo) tended to reduce the cerebral damage and neurological deficit, but the lower dose (20 mg/kg p.o. twice) did not. Valproate (VPA 1,000 mg/kg p.o. twice) also had no effect. Conclusions: ZNS at the anticonvulsant dose, unlike CBZ and VPA, ameliorated the brain infarction and the event of neurological deficit after transient focal cerebral ischemia. These data suggest that ZNS has therapeutic potential in protecting against ischemic cerebral damage, such as stroke.

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Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 1191-25-9, Name is 6-Hydroxyhexanoic acid, molecular formula is C6H12O3. In an article, author is Ankem, MK,once mentioned of 1191-25-9, Application In Synthesis of 6-Hydroxyhexanoic acid.

Risperidone-induced priapism

Priapism is well documented as a potential side effect of psychotropic medications. To date, there have been no reports of risperidone-induced priapism in the urologic literature. We report a case of risperidone-induced priapism requiring surgical treatment.

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Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics

Let¡¯s face it, organic chemistry can seem difficult to learn, Product Details of 99189-60-3, Especially from a beginner¡¯s point of view. Like 99189-60-3, Name is 2-[1-(2-Amino-2-oxoethyl)cyclohexyl]acetic Acid, molecular formula is Benzisoxazole, belongs to Benzisoxazole compound. In a document, author is Otley, Kate D., introducing its new discovery.

A Lewis Acid Catalyzed Annulation to 2,1-Benzisoxazoles

We report here a new, atom economical annulation to 2,1-benzisoxazole scaffolds via the BF3 center dot Et2O-catalyzed reaction of glyoxylate esters and nitrosoarenes. The developed method represents a convergent route to this compound class from previously unexplored inputs and provides a range of 2,1-benzisoxazoles in moderate to high yields under convenient conditions. Along with exploration of substrate scope, initial mechanistic investigation through O-18 labeling and the synthesis of a reaction intermediate provides evidence for an unusual umpolung addition of glyoxylates to nitrosobenzenes with high O-selectivity, followed by a new type of Friedel-Crafts cyclization.

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Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 815-17-8, Name is 3,3-Dimethyl-2-oxobutanoic acid, formurla is C6H10O3. In a document, author is GARCIA, G, introducing its new discovery. Product Details of 815-17-8.

RISPERIDONE – AN ATYPICAL AGENT APPROVED AS 1ST-LINE THERAPY FOR MANAGING MANIFESTATIONS OF PSYCHOTIC DISORDERS

Risperidone, a benzisoxazole derivative, was recently approved by the FDA for the management of psychotic disorders. It joins clozapine as the second antipsychotic agent to become available that possesses both dopaminergic and serotoninergic blocking activities. Risperidone has been shown to improve the positive and negative symptoms of schizophrenia in clinical trials. The drug can be used as a first-line agent and trials are currently being conducted to establish its benefit in treatment-refractory patients. Risperidone is associated with a low incidence of extrapyramidal symptoms, has not been associated with tardive dyskinesia, and does not require hematological monitoring. The availability of risperidone represents progress not only in the pharmacotherapy of schizophrenia, but also in the understanding of the pathophysiology of this disorder.

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Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics

Reference of 99-14-9, Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 99-14-9, Name is Propane-1,2,3-tricarboxylic acid, SMILES is O=C(O)CC(CC(O)=O)C(O)=O, belongs to Benzisoxazole compound. In a article, author is Nunes, Claudio M., introduce new discover of the category.

On the Photochemistry of 1,2-Benzisoxazole: Capture of Elusive Spiro-2H-azirine and Ketenimine Intermediates

The photochemistry of 1,2-benzisoxazole (1) was studied using low-temperature matrix isolation coupled with infrared spectroscopy and quantum chemistry calculations. We identified, for the first time, spiro-2H-azirine 2 and ketenimine 3 as intermediates in the photoisomerization of 1 to 2-cyanophenol (4). These results constitute indirect evidence for the existence of vinylnitrene intermediates in the photochemistry of 1,2-benzisoxazoles. The potential energy surface (PES) resulting from the N-O bond cleavage of 1 was compared with the respective PES of the parent isoxazole. Calculations at the CBS-QB3 level show that no stabilization is gained for the triplet vinylnitrene upon introduction of a benzene ring fused with isoxazole. However, the energies of 2 and 3 are higher by 13-15 kcal/mol comparing with the 2H-azirine and ketenimine analogs resulting from isoxazole, which explains why they had not been observed before. Our general mechanistic proposal also predicts well the photoisomerizations of 2 and 3 to 4.

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Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics