methyl 3-(3,4-dimethoxyphenyl)oxirane-2-carboxylate

4-(2-羟基乙基)吗啉-3-酮

tert-butyl 3,3-dimethyl-oxirane-2-carboxylate

methyl thieno[2,3-b]quinoline-2-carboxylate

methyl 2-iodoacetate