(11bS)-N-(Diphenylmethyl)-N-(i-propyl)dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-amine

(11bS)-N-(Diphenylmethyl)-N-(i-propyl)dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-amine