5,5-diethyl-6-imino-1-methyl-1,3-diazinane-2,4-dione

甲基碘

6-amino-5,5-diethylpyrimidine-2,4-dione

acide diethyl-5,5 methyl-1 imino-4 barbiturique

ethyl 2-cyano-2-ethylbutanoate