4-氨基-2,6-二氯烟酰胺

5,7-二氯吡啶并[4,3-d]嘧啶-4(3h)-酮

Propyl 4-(bromomethyl)-6-methoxy-2-pyridinecarboxylate

4-(Bromomethyl)-2-chloro-6-methoxypyridine

乌头酸