[acetyl(ethylcarbamoyl)amino] N-ethylcarbamate

[ethylcarbamoyl(propanoyl)amino] N-ethylcarbamate

1-methyl-6,7,8,9-tetrahydro-2H-[1,2]oxazolo[5,4-c]isoquinolin-5-one

1-phenyl-6,7,8,9-tetrahydro-2H-[1,2]oxazolo[5,4-c]isoquinolin-5-one

4-(ethylcarbamoylamino)-1,2,5-thiadiazole-3-carboxamide