Pyridine series

7-CHLORO-1-HEPTENE

tert-Butyl cyanoacetate,

1-Methylcyclopropane-1-sulfona

2,4-Dihydroxybenzaldehyde  

2-AMINO-6-THIOCYANATOBENZOTHIA

Isoxazol-5-amine

Pyrazine-2-carboxaldehyde 

2-Thiophenecarboxaldehyde

3-CHLORO-6-(4-METHYL-1H-IMIDAZ