2-甲基-2-苯基-1,3-二氧戊环

3-(1,3-二噻烷-2-亚基)-2,4-戊二酮

3,9-dimethyl-3,9-diphenyl-2,4,8,10-tetraoxaspiro[5.5]undecane

Piperidine, 1-(1-phenylethenyl)-

苯乙酮苯腙