Showing structure for 7'-(3,3-dimethyloxirane-2-carbonyl)-1-formyl-2'-hydroxy-1,6-dimethyl-3a-(methylamino)-4,6,7,8,9,9a,10,10a-octahydro-3h-spiro[cyclopenta[b]quinolizine-2,3'-indol]-8-yl butanoate