1-(4-methylphenyl)sulfonyl-5,5-diphenylazepan-4-one

1-苯基哌啶-4-羧酸

4-羟基二苯基甲基哌啶-1-羧酸苄酯

哌啶-4-碳酰肼

1-Azabicyclo[2.2.2]oct-4-yl(diphenyl)methanol