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Obtenção de novos heterociclos derivados do ácido levulínico
(Universidade Federal de Santa MariaBRQuímicaUFSMPrograma de Pós-Graduação em Química, 2013-09-30)
This study describes the attainment of twenty three (23) bis-heterocycles derived from the Levulinic Acid: Bis-Pyrazoles (6a-k) by the reaction of cyclecondensation between the 3-(5-(trifluoromethyl)-4,5-dihydro-1H-pyraz ...
Regioselective Incorporation of Backbone Constraints Compatible with Traditional Solid-Phase Peptide Synthesis
(American Chemical Society, 2012-12)
A protected aldehyde was attached via a twocarbon spacer to a peptide backbone amide nitrogen during a traditional Merrifield solid-phase synthesis. Acid-mediated unmasking of the aldehyde triggered the regioselective ...
Solid-phase synthesis of fused 1,4-diazepanone peptidomimetics via tandem N-iminium ion cyclization-nucleophilic addition
(Pergamon-Elsevier Science Ltd, 2015-09)
We herein describe the solid-phase synthesis of protected N-oxoalkyl-derivatized peptides designed for subsequent acid-mediated, tandem N-acyliminium ion cyclization-nucleophilic addition reaction. The target compounds ...
Síntese de Pirimidinas derivadas de 7,7,7-trialo-4-metoxi-6-oxo-4- heptenoatos de metila e bi-heterociclos trifluormetilados
(Universidade Federal de Santa MariaBRQuímicaUFSMPrograma de Pós-Graduação em Química, 2012-02-27)
An efficient method to obtain pyrimidinones and pyrimidines trialomethylated from the cyclocondensation reaction of compounds of methyl 7,7,7-trihalo-4-methoxy-6-oxoheptenoate
with urea and differents amidines providing ...
THEORETICAL STUDY OF THE MECHANISM OF CYCLOADDITION REACTION BETWEEN DICHLORO-SILYLENE CARBENE(CL2SI=C:) AND ACETONE
(Sociedad Chilena de Química, 2010)
Síntesis y estudio fotofísico de análogos del Prodan con sistema [pi]-extendido de pirazolo[1,5-a]pirimidina
(Universidad de los AndesMaestría en QuímicaFacultad de CienciasDepartamento de Química, 2022-12-06)
En este trabajo de investigación se obtuvieron sondas fluorescentes basadas en el núcleo heterocíclico pi-extendido de pirazolo[1,5-a]pirimidina (PP) con potencial aplicación en el marcado de biomoléculas. Considerando las ...