methyl 5-amino-6-methoxypyridine-2-carboxylate

methyl (5S)-5-benzyloxycarbonylamino-6-oxo-1,4,5-trihydropyridine-2-carboxylate

methyl (6RS,5S)-5-benzyloxycarbonylamino-6-hydroxy-1-t-butoxycarbonyl-4,5,6-trihydropyridine-2-carboxylate

2,6-二氯-3-硝基吡啶

methyl 5-benzyloxycarbonylamino-6-oxo-1-hydropyridine-2-carboxylate

6-甲氧基-5-硝基-2-吡啶羧酸

methyl 5-benzyloxycarbonylamino-6-methoxypyridine-2-carboxylate

methyl (5S,2Z)-5-benzyloxycarbonylamino-2-t-butoxycarbonylamino-6-hydroxy-2-hexenoate

Methyl 6-methoxy-5-nitro-2-pyridinecarboxylate

6-氯-3-硝基吡啶-2-醇

methyl (5S)-5-benzyloxycarbonylamino-6-oxo-1-t-butoxycarbonyl-4,5,6-trihydropyridine-2-carboxylate

2-甲氧基-3-硝基-6-氯吡啶

methyl (5S,2Z)-4-(3-benzyloxycarbonyl-2,2-dimethyl-1,3-oxazolidin-4-yl)-2-t-butoxycarbonylamino-2-butenoate