N-甲酸基脲

5-甲基-1-[3,4,5-三羟基-6-(羟基甲基)四氢吡喃-2-基]嘧啶-2,4-二酮

5-甲基-1,3-二(三甲基硅烷基)-2,4(1H,3H)-嘧啶二酮

1-(2-aminoethyl)-5-methylpyrimidine-2,4-dione

[3,4,5-triacetyloxy-6-(5-methyl-2,4-dioxopyrimidin-1-yl)oxan-2-yl]methyl acetate