Synonyms: Evonine,8-(acetyloxy)-O2-deacetyl-8-deoxo-O2-[(1,6-dihydro-1-methyl-6-oxo-3-pyridinyl)carbonyl]-,(8a)-; (+)-Emarginatine A;3-Pyridinecarboxylic acid, 1,6-dihydro-1-methyl-6-oxo-,10,13,21,22-tetrakis(acetyloxy)-12-[(acetyloxy)methyl]-5,7,8,9,10,12,13,14,15,17,18,19-dodecahydro-20-hydroxy-8,18,19,20-tetramethyl-5,17-dioxo-8,11-epoxy-9,12-ethano-11,15-methano-11H-[1,8]dioxacycloheptadecino[4,3-b]pyridin-14-ylester, [8R-(8R*,9R*,10R*,11S*,12S*,13R*,14R*,15S*,18S*,19S*,20S*,21S*,22R*)]-;Emarginatine A