8-溴-2-甲基-2,3,4,5-四氢-1H-吡啶并[4,3-b]吲哚

(3Z,5Z)-3,5-dibenzylidene-1-methylpiperidin-4-one

1-叔丁基-4-哌啶醇

8-methyl-2,3-diphenyl-1,4-dioxa-8-azaspiro[4.5]decane

4-[2-(4,4-dimethyl-5H-1,3-oxazol-2-yl)phenyl]-1-methylpiperidin-4-ol