(11bS)-2，6-Bis[3，5-bis(trifluoromethyl)phenyl]-4-hydroxy-4-oxide-dinaphtho[2，1-d:1'，2'-f][1，3，2]dioxaphosphepin

(11bS)-2，6-Bis[3，5-bis(trifluoromethyl)phenyl]-4-hydroxy-4-oxide-dinaphtho[2，1-d:1'，2'-f][1，3，2]dioxaphosphepin