(3'R,6S,9R)-5,6,7,8,9,10-Hexahydro-5'-(2,2,2-trifluoroethyl)-2-[(1E)-3-[4-(trifluoromethyl)-1-piperidinyl]-1-propen-1-yl]spiro[6,9-methanobenzocyclooctene-11,3'-[1,2,5]thiadiazolidine]1',1'-dioxide