1-氨基-4-恶环己烷羧酸乙烯

5,5-bis(phenylsulfanylmethyl)imidazolidine-2,4-dione

5,5-二苄基咪唑烷-2,4-二酮

spiro[bicyclo[2.2.1]heptane-3,5'-imidazolidine]-2',4'-dione

5-正丙基乙内酰脲