6-amino-1,3-dimethyl-5-[(p-nitrobenzylidene)amino]uracil

3-(4-chlorophenyl)-4-dimethylsulfiliminofurazan

6-amino-5-(benzylideneamino)-1,3-dimethylpyrimidine-2,4-dione

(-)-(4aS,7R,8aR)-7-methylsulfonyloxy-5-methylene-8a-methyl-decahydronaphthalen-2-one

6-Amino-5-(4-methoxybenzylideneamino)-1,3-dimethyluracil