Nitrophenyl dihydropyridine-derivatives from Seriphidium oliverianum

摘要: Abstract The chromatographic purification of the n -hexane soluble part methanolic extract Seriphidium oliverianum (J. Gay ex Besser) yielded six secondary metabolites that includes two new natural products; diethyl-2,6-diphenyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate ( 1) and 2,6-diacetyl-3,5-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine 2 ) along with four known phytochemicals; tetradecyl ferulate 3 ), octadecyl coumarate 4 methyl 5 grevillate 6 ). compounds were characterized help 1D-, 2D-NMR high resolution mass spectrometric techniques, whereas, identified through 1D-NMR spectrometry, in comparison literature values. Compound 1 is synthetically known, however, it first time reported from any source, compound has never been other source before. All isolates screened anti-urease anti-glucosidase bioassay but found inactive.