2-phenyl-2-butene,

2-phenyl-2-pyrrolidinylethylamine dihydrochloride
2-phenyl-2-ureidoacetic acid
2-phenyl-2-(piperidin-1-yl)ethanamine dihydrochloride
2-ethyl-1-butene
4-苯基-2-丁酮,4-phenyl-2-butanone