Browsing by Title Artículos de revistas
Now showing items 2483-2502 of 2801
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(AMER CHEMICAL SOC, 2003-12-12)3-Amino-delta-valerolactams trans-11a-c were synthesized through conjugate addition and Curtius rearrangement and converted into Fmoc-{Trp-Gly}, Fmoc-{Ile-Gly}, and Fmoc-{Phe-Gly} pseudo-dipeptides. Conformational analyses ...
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(HETERO CORPORATION, 1998-05)Reaction of 5-amino-3-methyl-1-phenylpyrazole (1a) and 5-amino-3-(4-chlorophenyl)-1H-pyrazole (1b) with dimedone (2) and p-susbstituted benzaldehydes 3 in ethanol, afforded in all cases tricyclic linear 4-aryl- ...
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(MARCEL DEKKER INC, 2004-07)We report here the synthesis of substituted 4-chloro-N-[3-oxo-3-(4-aryl-1-piperazinyl)-propyl] benzamides (5-9), as potential new antidepressants, incorporating in a single molecule structural moieties related to a dual ...
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(2010)The synthesis of a series of substituted arylpiperazines linked to a 2-(pyridin-3-yl)-1H-benzo[d]imidazole scaffold through an alkylic linker is reported. The novel 1-(2-(4-arylpiperazin-1-yl)alkyl)-2-(pyridin-3-yl)-1H-b ...
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(MARCEL DEKKER INC, 2001)A very simple and efficient method to prepare aminonaphthalene derivatives in good yield using the Bucherer reaction under microwave irradiation in a closed vessel is described. A reaction time of 30 min at 150 Watts of ...
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(Elsevier, 2020)Cardiovascular diseases are the leading cause of death in the world. Platelets have a major role in cardiovascular events as they bind to the damaged endothelium activating and forming thrombi. Although some hydroquinone ...
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(TAYLOR & FRANCIS INC, 2007)New benzothiophene arylpiperazine derivatives 8 (a-f) were synthesized as potential serotoninergic agents with 5-HT1A receptor affinity. Preparation of the derivatives was performed by treating N-[2-(chloromethyl)phenyl] ...
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(Elsevier, 2017)A new calix[4]arene thiourea derivative bearing a benzothiazolyl moiety (L) was synthetized and characterized by single crystal X-ray, NMR and ESI-TOF. The binding ability of the bifunctional receptor towards several ions ...
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(GEORG THIEME VERLAG, 1999-12)The effective synthesis of a variety of bisthiourea-bridged calix[4]arenes substituted by carbohydrates units (D-glucose, D-mannose, D-galactose and lactose) at the narrow rim by reaction of bis(aminoethoxy)calix[4]arene ...
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(SCIENCE REVIEWS LTD, 2008-06)A novel series of calix[4]arenes bearing benzothiazole, benzoxazole, and benzoimidazole groups were obtained by the reaction of the corresponding 2-mercaptoheterocycle with 5,11,17,23-tetra-tert-butyl-25,27-bis[2-(chloroacetamido) ...
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(SOC CHILENA QUIMICA, 2009-06)New benzothiophene arylpiperazine derivatives 7 (a-1) were synthesized as potential serotoninergic agents with 5-HT1A receptor affinity. Preparation of the derivatives was performed by reaction of 1-(4-aminophenyl)-4-[(4 ...
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(MDPI, 2021)There is consistent evidence that long-chain polyunsaturated fatty acids (LCPUFA) belonging to the n-3 series, i.e., eicosapentaenoic (20:5n-3, EPA) and docosahexaenoic (22:6n-3, DHA) acids, decrease the risk of heart, ...
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(Elsevier, 2018-08-15)The fluorination of two types of graphene oxides conducted by an easy and scalable deoxyfluorination reaction is reported. This reaction was carried out using diethylaminodifluorosulfinium tetrafluoroborate, a stable ...
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(2002)The synthesis of new indazol-4,7-dione derivatives via 1,3-dipolar cycloaddition of diazomethane with 2,3-dimethyl-1,4-benzoquinone (2) and 1,4-naphthoquinone (7) followed by N-alkylation of the pyrazol nitrogen atom of ...
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(MARCEL DEKKER INC, 2002)Syntheses of new morpholinomethylbenzamides 6 bearing both electron-withdrawing and electron-releasing groups at the aromatic ring are described. The strategy involved synthesis of hippuric acid ethyl esters 3, their ...
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(FREUND PUBLISHING HOUSE LTD, 2000)The reaction of 4-amino-3-aryl-5-benzylaminopyrazoles (1a,b) with 3-dimethylaminopropiophenones (2) in ethanol with acetic acid gave 1-benzyl-4,6-diaryl-2,3-dihydropyrazolo[3,4-b] [1,4]diazepines (3a-h). The structure ...
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(GEORG THIEME VERLAG KG, 2003-12-18)The synthesis and characterization of a series of 4-nitrosophenyl-1.4-dihydropyridines derived from the respective nitro compounds of pharmacological interest is described. The complete synthetic pathway is based on the ...
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(GEORG THIEME VERLAG KG, 2003-12-18)The synthesis and characterization of a series of 4-nitrosophenyl-1.4-dihydropyridines derived from the respective nitro compounds of pharmacological interest is described. The complete synthetic pathway is based on the ...
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(Wiley-VCH Verlag, 1997)This work reports the synthesis of a novel polymeric organic-inorganic hybrid. The inorganic component is a silica network obtained by controlled hydrolysis of tetraethyl orthosilicate via sol-gel process and the organic ...
