Synonyms: n-{2-[(2r,12bs)-2'-oxo-1,3,4,6,7,12b-hexahydro-3'h-spiro[1-benzofuro[2,3-a]quinolizine-2,4'-imidazolidin]-3'-yl]ethyl}methanesulfonamide;AC1L4TX3;L 659066;AC1Q6W85;AR-1K4546;MK 467;L-659,066;Methanesulfonamide, N-(2-(1,3,4,6,7,12b-hexahydro-2'-oxospiro(2H-benzofuro(2,3-a)quinolizine-2,4'-imidazolidin)-3'-yl)ethyl)-, trans-;N-[2-[(2R,12bS)-2'-oxospiro[1,3,4,6,7,12b-hexahydro-[1]benzofuro[2,3-a]quinolizine-2,5'-imidazolidine]-1'-yl]ethyl]methanesulfonamide