Deprotection From Work
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Pouso forçado - desproteção do trabalhador: uma tragédia silenciosa no cotidiano dos demitidos e aposentados da Varig/Aerus
Este estudo tem por objetivo analisar o impacto da falência da Varig, para os demitidos e aposentados dessa empresa, nas suas condições de existência, enfocando as demissões e perdas de direitos com a intervenção no Fundo de Pensão Complementar Aerus. Examina as sequelas de um processo jurídicofinanceiro que retirou direitos de proteção social dos
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/10/2012
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2. SYNTHESIS AND APPLICATION OF CHALCOGENIDES PEPTIDES DERIVATIVES IN ASYMMETRIC CATALYSIS / SÍNTESE E APLICAÇÃO DE CALCOGENETOS DERIVADOS DE PEPTÍDEOS EM CATÁLISE ASSIMÉTRICA
In the present work, we have developed a flexible, modular synthetic route for the preparation of new chiral chalcogen peptide derivatives containing sulfur, selenium or oxygen and evaluate their application as catalysts in enantioselective reactions. This modular approach allowed the preparation of a series of chiral compounds with a high structural diversi
Publicado em: 2010
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3. Estudo da síntese convergente de peptídeos em fase sólida: abordagem clássica e uso de temperatura alta / Study of the convergent solid phase peptide synthesis: classical approach and use of high temperature
Stepwise solid-phase peptide synthesis (SSPPS) has been applied successfully for the preparation of most peptides containing up to 30 residues. However, it presents problems and limitations. Convergent soIid-phase peptide synthesis (CSPPS) can overcome part of them. This methodology is based on the synthesis of peptide segments by SSPPS followed by their con
Publicado em: 2003
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4. Sintese total e enantiosseletiva da aglicona do antibiotico (+)-10-desoximetimicina
This work describes the enantioselective total synthesis of (+)-10-Deoxymethynolide (2c), the aglycon of the 12-membered macrolide antibiotic 10-Deoxymethymycin, through the esterification of the C1-C7 and C8-C13 fragments ((-)-339 and (+)-346, respectively) and macrocyclization of the corresponding vinylic iodide-aldehyde via an intramolecular Nozaki- Hiyam
Publicado em: 1998
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5. Estudo da termólise de dioxetanos catalisada por trasferência intramolecular de elétron / Studies on the intramolecular electron transfer catalyzed thermolysis of 1,2-dioxetanes
The generation of visible light by a living organism or by a chemical reaction is a sufficiently rare and unusual event to attract the interest of biologists, biochemists and chemists. The chemiluminescent reaction most extensively investigated over the past 25 years, is the thermolysis of 1,2-dioxetanes. These high energy molecules generate mainly triplet e
Publicado em: 1997
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6. Obtenção de aza-açucares a partir de D-glucitol
The azasugars (polyhydroxilated pyperidines and pyrrolidines) constitute an important class of natural and synthetic products, due to their ability to inhibit glycosidases, which are enzymes responsible for the cleavage of glycosidic bonds. Inhibition of glycosidases could be of therapeutic value for the treatment of diabetes, cancer, obesity and viral infec
Publicado em: 1996
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7. The chemical synthesis of the anticodon loop of an eukaryotic initiator tRNA containing the hypermodified nucleoside N6-/N-threonylcarbonyl/-adenosine/t6A/1.
In this work, the first example of chemical synthesis of oligoribonucleotide containing the hypermodified nucleoside N6-/N-threonylcarbonyl/-adenosine /t6A/ is presented. Synthesis of the heptamer C-C-C-A-U-t6A-A IX, the sequence of which is related to the anticodon loop of the initiator tRNA from yellow lupine, was achieved by: /i/ phosphotriester block syn