N-?[(11bS)?-?2,?6-?Di-?9-?anthracenyl-?8,?9,?10,?11,?12,?13,?14,?15-?octahydro-?8-?oxidodinaphtho[2,?1-?d:1',?2'-?f]?[1,?3,?2]?dioxaphosphepin-?4-?yl]?-?1,?1,?1-?trifluoromethanesulfonamide, 97%, 1g