4-(2-oxoazetidin-1-yl)-3-(phenoxymethyl)benzoic acid

3-甲基-4-硝基苯甲酸甲酯

methyl 3-(bromomethyl)-4-nitrobenzoate

methyl 4-nitro-3-(phenoxymethyl)benzoate

methyl 4-(2-oxoazetidin-1-yl)-3-(phenoxymethyl)benzoate