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Preliminary phytochemical study of methanol extracts from Vernonanthura patens’s leaves located in Marcabelí (El Oro province), Ecuador. The methodology consisted of chromatographic column separations with increasing polarity solvents and the analysis of fractions by Gas Chromatography-Mass Spectrometry coupled system (GC-MS). The structure of 53 compounds was proposed. Analyzed V. patens species showed the presence of terpene and aliphatic hydrocarbons, free fatty acids and their methyl and ethyl esters, oxygen sesqui, triterpenoids and sugars. For ecuadorian species, there are no records of chemical studies. </p

international journal of organic chemistry

Gas Chromatography-Mass Spectrometry Study from the Leaves Fractions Obtained of &amp;lt;i&amp;gt;Vernonanthura patens&amp;lt;/i&amp;gt; (Kunth) H. Rob