2-(chloromethyl)-5-fluorothiophene

(1-ethyl-5-fluoro-3-methyl-1H-pyrazol-4-yl)acetic acid

(1-ethyl-4-methyl-1H-imidazol-2-yl)methanol

methyl 3-(3-chloro-1H-1,2,4-triazol-1-yl)propanoate

3-(3-iodo-1H-pyrazol-1-yl)propanoic acid

methyl 3-(3-ethoxy-4-nitro-1H-pyrazol-1-yl)propanoate

ethyl 2-(3-ethoxy-4-nitro-1H-pyrazol-1-yl)butanoate

4-(3-ethoxy-4-nitro-1H-pyrazol-1-yl)butanoic acid

1,4-diethyl-5-methyl-1H-pyrazole

2-(chloromethyl)-1-ethyl-4-methyl-1H-imidazole

1-ethyl-5-hydrazino-1H-1,2,4-triazole