(E)-Methyl 2-[(2S,3S,12bR)-3-ethyl-8-methoxy-1,2,3,4,6,7,12,12b-octahydroindolo[2,3-a]quinolizin-2-yl]-3-methoxyacrylate ethanol solvate - Carvalho, P; Furr, E B, 3rd; McCurdy, C (Acta Crystallogr Section E, 2009)