(11bS)-2,6-Dibromo-N,N-bis((R)-1-phenylethyl)dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-amine

(11bS)-2,6-Dibromo-N,N-bis((R)-1-phenylethyl)dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-amine