1-甲基-1H-1,2,3-噻唑-5-羧酸甲酯

1-甲基-1,2,3-三氮唑-4-甲酸甲酯

methyl 3-(2,2,6,6-tetramethyl-4-oxopiperidin-1-yl)prop-2-enoate

methyl 1-methyl-9H-carbazole-3-carboxylate

1-Methyl-9H-carbazol-2-carbonsaeure-methylester