8-Thia-1,3-diazaspiro[4.5]decane-2,4-dione

8-oxa-1,3-diazaspiro[4.5]decane-2,4-dione

8-甲基-1,3,8-三氮杂螺[4.5]癸烷-2,4-二酮

替群妥英

5-(4-chlorophenyl)imidazolidine-2,4-dione