Synonyms: Evonine,8-(acetyloxy)-O1,O2-dideacetyl-8-deoxo-O2-[(1,6-dihydro-1-methyl-6-oxo-3-pyridinyl)carbonyl]-O1-(1-oxo-2-butenyl)-,(8a)-;8,11-Epoxy-9,12-ethano-11,15-methano-11H-[1,8]dioxacycloheptadecino[4,3-b]pyridine,3-pyridinecarboxylic acid deriv.; (+)-Emarginatine G; Emarginatine G