1-cyano-7,8-diphenyldibenzo[1,4]dioxine
5,6-diphenylspiro[1,3-benzodioxole-2,4'-piperidine]
(2R)-1-[5,6-diphenylspiro(1,3-benzodioxole-2,4'-piperidine)-1'-yl]-3-(quinoline-5-yloxy)propan-2-ol
1-(5,6-diphenylspiro[1,3-benzodioxole-2,4'-piperidine]-1-yl)ethan-1-one