4-羟基-2-苯基-1,3-噻唑-5-羧酸乙酯

diethyl 2-butylcyclopropane-1,1-dicarboxylate

2-[1,2,3]triazol-2-yl-malonic acid diethyl ester

diethyl 2-(triazol-1-yl)propanedioate

ethyl 3-amino-4-(3-methoxyphenyl)furan-2-carboxylate