(11aR)-3,7-双[3,5-双(叔丁基)苯基]-10,11,12,13-四氢-10,10,13,13-四甲基-5-羟基-5-氧化物-二茚并[7,1-de:1',7'-fg][1,3,2]二氧磷杂环素, (11aR)-3,7-Bis[3,5-bis(tert-butyl)phenyl]-10,11,12,13-tetrahydro-10,10,13,13-tetramethyl-5-hydroxy-5-oxide-diindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin