2-甲基-1-苯基-1H-苯并咪唑

2-methyl-4,6-diphenylpyrimidine

2,4,6-三甲基-5-羟基嘧啶(6ci,9ci)

5-乙氧基甲基-2-甲基嘧啶-4-基胺

2-methyl-4-amino-5-tert-butoxymethylpyrimidine