4548-45-2
2-氯-5-硝基吡啶
→
67938-68-5
diethyl 2-acetamido-2-(5-aminopyridin-2-yl)propanedioate
1068-90-2
乙酰胺基丙二酸二乙酯
67938-67-4
diethyl 2-acetamido-2-(5-nitropyridin-2-yl)propanedioate
67938-69-6
Propanedioic acid, 2-(acetylamino)-2-(5-chloro-2-pyridinyl)-, 1,3-diethyl ester