N'-ethoxybenzenecarboximidamide

1-(4-ethoxyphenyl)-2-phenylethane-1,2-dione

3,3,5-三甲基-2,4-二氢吡唑

1-ethyl-3,5,5-trimethyl-4,5-dihydro-1H-pyrazole

1-乙基-3,7-二甲基嘌呤-2,6-二酮