1-ethyl-5-methylpyrimidine-2,4-dione

2,4-二乙氧基-5-甲基嘧啶

N-(4-chloro-5-methylpyrimidin-2-yl)-N-methylmethanesulfonamide

3-(2-氯-5-甲基嘧啶-4-基)-1H-吲哚

(9CI)-2,4-二氟-5-甲基嘧啶