1-ethyl-1,10b-dimethyl-1,5,6,10b-tetrahydro[1,3]oxazolo[4,3-{a}]isoquinolin-3-one

6-methoxy[1,2,5]oxadiazolo[3,4-{b}]pyrazin-5-amine

hexahydro-1,3-benzodioxol-2-one

{N}-[4-(trifluoromethoxy)phenyl]-1{H}-pyrazole-3-carboxamide

2-anilino-2-oxoethyl 4-amino-1,2,5-oxadiazole-3-carboxylate

4-ethynyl-2,2,6,6-tetramethylpiperidin-4-ol

ethyl (2{Z})-2-(2-oxo-1,2-dihydro-3{H}-indol-3-ylidene)hydrazinecarboxylate

ethyl 2-amino-5,6,7,8-tetrahydroimidazo[1,2-{a}]pyridine-3-carboxylate

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

methyl 4-hydroxyprolinate

1,3-dimethyl-6,7-dihydro-2-benzothiophen-4(5{H})-one