1-(1-ethyl-propyl)-6-methoxy-3-methyl-1H-pyrazolo[3,4-b]pyrazin-5-ol

1-methoxy-1-(4-methylsulfanylphenyl)-2-oxaspiro[2.5]octane

3,4-Dimethoxy-7-methyl-1H-[1,2,5]triazepine

6,7-Dimethoxy-3-methyl-4H-[1,2,5]triazepine