Pyridine series

Bromopyruvic acid

Di-tert-butyl chloromethyl pho

2,4-Dichloro-l-phenylalanine 

1,3-Dimethylpyrazole

 Germacrone

Ethyl dimethylphosphonoacetate

Ethyl 1-benzyl-4-oxo-pyrrolidi

Dansyl Chloride

(-)-diacetyl-l-tartaric acid 

(4R,5R)-2,2-Dimethyl-1,3-dioxo

(4S,5S)-2,2-Dimethyl-1,3-dioxo

4-[(Methylamino)methyl]piperid