4-(甲氧羰基)-2-甲基苯硼酸频哪醇酯

methyl 4-(5-nitropyridin-2-yl)benzoate

Methyl 4-azidobenzoate

methyl 4-(6-aminopyridin-3-yl)benzoate

对甲基苯甲酸甲酯