4 research outputs found

    A rapid, chromatography-free route to substituted acridine鈥搃soalloxazine conjugates under microwave irradiation

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    Microwave irradiation was applied to a sequence of condensation reactions from readily available 9-chloroacridines to provide a range of novel acridine鈥搃soalloxazine conjugates. The combination of these two moieties, both of biological interest, was achieved by a chromatography free route

    2,7-Diazabicyclo[2.2.1]heptanes:novel asymmetric access and controlled bridge-opening

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    La presente investigaci贸n est谩 orientada a identificar el impacto que tuvo Cultura PE en los medios digitales, el proyecto fue elaborado, planificado y puesto en marcha con el apoyo del 谩rea de Marketing de la Universidad de San Martin de Porres. Cultura PE se llev贸 a cabo en las calles de Lima, logrando ser conocido y reconocido por la difusi贸n que se le dio en distintos medios, siendo el de mayor impacto el medio digital, en la plataforma de Facebook, con el respaldo de la USMP. El estudio es de enfoque mixto, cuantitativo por cuanto se realiz贸 una encuesta y cualitativo por el an谩lisis de los procesos en el desarrollo del proyecto; es descriptivo, correlacional y explicativo. La muestra con la que cont贸 fue de egresados de la USMP. En esta tesis se demostr贸 que la presencia digital, inversi贸n publicitaria y un contenido de valor pueden cambiar la perspectiva que un usuario tiene frente a una marca, como fue el caso Cultura PE que tuvo impacto la imagen de marca de la USMP

    Asymmetric synthesis and applications of 伪-aryl triketopiperazines

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    This project aims to explore the asymmetric synthesis of 伪-aryl triketopiperazines and their application in synthetic transformations to access biologically relevant scaffolds. Chapter One provides a brief overview of the triketopiperazine motif including initial manipulations and its occurrence in nature. Recent work from our research group has demonstrated that triketopiperazines can undergo highly enantioselective Michael additions. Chapter Two provides an overview of these publications and the extension of this methodology to 伪-aryl triketopiperazines, including their synthesis and participation in asymmetric organocatalytic Michael additions. Further investigations into the transformation of the Michael addition products towards biologically relevant scaffolds are discussed in Chapter Three. This includes a novel method for access to an unusual diazabicycle and its further transformations. The application of methodology for access to quaternary 伪-amino acids from triketopiperazines, developed within our research group in collaboration with AstraZeneca, is discussed in Chapter Four. Chapter Five explores the triketopiperazine core as a vehicle for access to natural product scaffolds and the synthesis of a natural product possessing a triketopiperazine is also discussed
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