(3R)-1',5',6',7',8',10'aalpha-Hexahydro-1-(5-hexenyl)-4alpha-[1-(beta-carboline-1-yl)vinyl]spiro[piperidine-3,2'(3'H)-pyrrolo[1,2-a]azocine]-2,3'-dione

(3R)-1',5',6',7',8',10'aalpha-Hexahydro-1-(5-hexenyl)-4alpha-[1-(beta-carboline-1-yl)vinyl]spiro[piperidine-3,2'(3'H)-pyrrolo[1,2-a]azocine]-2,3'-dione