Synonyms: Methanesulfonamide,N-[1'-(6-cyano-1,2,3,4-tetrahydro-2-naphthalenyl)-3,4-dihydro-4-oxospiro[2H-1-benzopyran-2,4'-piperidin]-6-yl]-,monohydrochloride, (R)-; Methanesulfonamide,N-[1'-[(2R)-6-cyano-1,2,3,4-tetrahydro-2-naphthalenyl]-3,4-dihydro-4-oxospiro[2H-1-benzopyran-2,4'-piperidin]-6-yl]-,monohydrochloride (9CI); Spiro[2H-1-benzopyran-2,4'-piperidine],methanesulfonamide deriv.; L 702958