1-[(2S,5R)-4-oxo-6,8-dioxabicyclo[3.2.1]oct-2-yl]-1,2-dihydropyridazine-3,6-dione

4-methyl-1,2,5-oxadiazole-3-carbohydrazonamide

{[({E})-2-amino-2-chloro-1-cyanovinyl]imino}malononitrile

methyl 4-ethyl-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate

5-amino-3-(cyanomethyl)-1-(2-hydroxyethyl)-1{H}-pyrazole-4-carbonitrile

3-(1{H}-pyrazol-1-yl)-4{H}-1,2,4-triazol-4-amine

ethyl 5-bromo-6-(5-methyl-2-oxo-2,3-dihydro-1{H}-imidazol-4-yl)-6-oxohexanoate

ethyl 5-(3-methoxyphenyl)-7-methyl-2,3-dihydro-5{H}-[1,3]thiazolo[3,2-{a}]pyrimidine-6-carboxylate

(2-amino-6,7-dihydro-5{H}-pyrrolo[1,2-{a}]imidazol-3-yl)(4-methoxyphenyl)methanone

4-amino-2-oxo-1,2-dihydroquinoline-3-carbonitrile

4-cyano-{N}'-hydroxy-1,2,5-oxadiazole-3-carboximidamide