3-(acetyloxymethyl)-7-[[2-(N,N'-diethylcarbamimidoyl)sulfanylacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

6-amino-1,3-diethyl-2-sulfanylidenepyrimidin-4-one

1,3-二乙基脲

1,3-二乙基-1-亚硝基脲

N,1-diethyltetrazol-5-amine