Pyridine series

Methane sulfonyl azide

2-hydroxy-6-methoxybenzaldehyd

o-Vanillin

1-BOC-1,2,3,4-TETRAHYDROQUINOL

Diethyl (3-carboxyphenyl)phosp

(trimethylsilyl)diazomethane s

(Aminomethyl)phosphonic acid

diethyl cyanidophosphate

N-P-tosyl-L-phenylalanine

2,4,6-Trimethylpyridine