Terpenios Sintese
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Sintese do triterpeno biciclico ent-a-polipodatetraeno : confirmação da configuração absoluta do produto natural
a-Polypodatetraene is a bicyclic triterpene isolated from Polypodium fauriei which the structure and absolute configuration were established by Ageta and collaborators. In the present work we developed the synthesis of the ent-a-polypodatetraene (1) starting from the copalic acid (2), in 9 steps with 3,2 % overall yield. The copalic acid (2) used in this wor
Publicado em: 1996
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2. Uma metodologia eficiente para a sintese de isotiocianoterpenos
With the purpose of providing an efficient methodology to obtain terpenes containing nitrogen atoms and particularly the isothiocyanosesquiterpenes, bioactive metabolites from marine organisms, we have tested several approaches. The main policy in the present work was directed by the observation that to obtain the tertiary isothiocyanosesquiterpenes the func
Publicado em: 1995
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3. Estudo sobre a sintese de sesterpeno hirtiosano e sobre a sintese de acucares clorados
A sesterterpene called hyrtiosal has recently been isolated from the marine alga Hyrtios erectus, possessing an unstudied carbon skeleton. Since this natural product hat not yet been synthesized nor has its absolute configuration been determined, a study was undertaken to develop enantioselective synthetic routes for preparing hyrtiosal and its basic skeleto
Publicado em: 1994