منابع مشابه
Total synthesis of seco-lateriflorone
A convergent strategy toward the synthesis of lateriflorone (5) is described. Our approach is based on biosynthetic considerations and draws on a sequence of prenylation, oxygenation and Claisen reactions for the construction of chromenequinone 6, and a tandem Claisen/Diels–Alder reaction cascade for the synthesis of caged tricycle 7. Union of fragments 6 and 7 led to the synthesis of secolater...
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The (seco)iridoids and their derivatives, the monoterpenoid indole alkaloids (MIAs), form two large families of plant-derived bioactive compounds with a wide spectrum of high-value pharmacological and insect-repellent activities. Vinblastine and vincristine, MIAs used as anticancer drugs, are produced by Catharanthus roseus in extremely low levels, leading to high market prices and poor availab...
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This document describes a rule learning framework called SeCo (derived from Separate-and-Conquer). This framework uses building blocks to specify each component that is needed to build up a configuration for a rule learner. It is based on a general separate-and-conquer algorithm. The framework allows to configurate any given rule learner that fulfills some properties. These are mainly that it e...
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The underlying stereochemically complex and densely functionalized scaffold of the B-seco limonoids was synthesized employing an Ireland-Claisen rearrangement as key transformation.
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Rosangela da Silva*, Paulo Marcos Donate, Gil Valdo José da Silva, Susimaire Pedersoli a and Carlos Alemán Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, 14040-901 Ribeirão Preto SP, Brazil Departament d’Enginyería Química, E.T.S. d’Enginyers Industrials de Barcelona, Universitat Politécnica de Catalunya, ...
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ژورنال
عنوان ژورنال: Estudos Avançados
سال: 1990
ISSN: 0103-4014
DOI: 10.1590/s0103-40141990000200007