bicyclo[4.2.1]nona-2,4,7-trien-9-one

5-N,5-N,6-N,6-N-tetramethyl-1,2-dihydroacenaphthylene-5,6-dicarboxamide

3-环己基-1,1-二甲基脲

1,1-dimethyl-3-propan-2-ylurea

3-benzyl-1,1-dimethylurea