6-methyl-2-[3-(3-oxobutylamino)phenoxy]pyridine-3-carboxylic acid

2-(4-methoxycarbonylphenyl)sulfanyl-6-methylpyridine-3-carboxylic acid

benzyl 2-chloro-6-methylpyridine-3-carboxylate

(2-氯-6-甲基吡啶-3-基)甲醇

2-氨基-6-甲基-3-吡啶羧酸