2,2,3-三甲基-恶唑烷

N-(propan-2-ylideneamino)pyridine-3-carboxamide

2,2,2-triphenylacetaldehyde

2,2-dimethyl-4,4,5-triphenyl-1,3-dioxolane

2-羟基-1,2,2-三苯乙酮