(<i>E</i>)-Methyl 2-[(2<i>S</i>,3<i>S</i>,12b<i>R</i>)-3-ethyl-8-methoxy-1,2,3,4,6,7,12,12b-octahydroindolo[2,3-<i>a</i>]quinolizin-2-yl]-3-methoxyacrylate ethanol solvate
Acta crystallographica. Section E