1,1,1-Trifluoro-N-[(11bR)-8,9,10,11,12,13,14,15-octahydro-2,6-di-2-naphthalenyl-4-oxidodinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-yl]methanesulfonamide

1,1,1-Trifluoro-N-[(11bR)-8,9,10,11,12,13,14,15-octahydro-2,6-di-2-naphthalenyl-4-oxidodinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-yl]methanesulfonamide