1-(2,2-diphenylpentyl)-3-phenylthiourea

2,2-diphenyl-4-piperidin-1-ylbutanamide

4-[双(异丙基)氨基]-2,2-二苯基丁腈

N-(2,2-diphenylethyl)benzamide

2,2-二苯基乙酰肼