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2016
DOI: 10.5935/1984-6835.20160007
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Two New Labdane-type Diterpenoids and others Compounds fromConchocarpus cyrtanthus(Rutaceae)

Abstract: Resumo: Dois novos diterpenos do tipo labdano denominados 16-hidroxilarixol (1) e 16-hidroxi-7-labden-6-ona (2) foram isolados de Conchocarpus cyrtanthus, juntamente com mais três cumarinas: seselina (3), xantoxiletina (4), luvangetina (5); o alcaloide dictamina (6); seis esteroides: -sitosterol (7), estigmasterol (8), campesterol (9), 7-hidroxi--sitosterol (10), 7-hidroxiestigmasterol (11) e 7-hidroxicampesterol (12); três diterpenos: manool (13), 16-hidroximanoiloxido (14) e 16-hidroxi-13-epi-manoiloxi… Show more

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Cited by 3 publications
(2 citation statements)
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“…In contrast with the frequency and availability of β-sitosterol in different species, the other isolated steroid (9) has not yet been reported from any of the Euphorbia species. Although this oxidized sterol has been isolated from other plant species [52], not many researchers have focused on its bioactive and pharmacological effects up until now.…”
Section: Discussionmentioning
confidence: 99%
“…In contrast with the frequency and availability of β-sitosterol in different species, the other isolated steroid (9) has not yet been reported from any of the Euphorbia species. Although this oxidized sterol has been isolated from other plant species [52], not many researchers have focused on its bioactive and pharmacological effects up until now.…”
Section: Discussionmentioning
confidence: 99%
“…Exemplos notáveis dessa classe de produtos naturais envolvendo estudos de atividade citotóxica/antiproliferativa, ilustrados na Figura 1, incluem as coranarinas do tipo C (1) e D (2) (SURESH et al, 2010) e mais amplamente o andrografolídeo (3) e seus derivados (SHARMA et al, 2017). No contexto internacional, a flora brasileira tem sido uma fonte notável de diversos diterpenos dessa natureza como Renealmia exaltata ("pacová-catinga") (SEKIGUCHI et al, 2001), Hedychium coronarium (ENDRINGER et al, 2014), Stemodia foliosa ("meladinha") (SILVA et al, 2008), Dodonaea viscosa ("vassoura vermelha") (OLIVEIRA et al, 2012), Conchocarpus cyrtanthus ("orelha de cabra") (OLIVEIRA et al, 2016) e Leptohyptis macrostachys ("alfavaca-brava") (CAVALCANTI et al, 2021) para circunscrever apenas alguns poucos exemplos. A ampla disponibilidade biológica de espécies vegetais com registros de diterpenos labdanos aliada à grande biodiversidade ainda não explorada em diversos biomas do Brasil, pode oferecer uma oportunidade inovativa importante no desenvolvimento de agentes anticâncer usando essas substâncias como arcabouços moleculares.…”
Section: Introductionunclassified