Methanesulfonamide, N-[(11bS)-2,6-di-1-naphthalenyl-4-oxidodinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl]-1,1,1-trifluoro-

Methanesulfonamide, N-[(11bS)-2,6-di-1-naphthalenyl-4-oxidodinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl]-1,1,1-trifluoro-