for the following products
1,2-Dimethyl-5-hydroxy-3-indolecarboxylic acid ethyl ester | 1,2-Dimethyl-5-hydroxyindole-3-CarboxylateEthyl | Ethyl 1,2-dimethyl-5-hydroxyindole-3-carboxylate | Ethyl 5-hydroxy-1,2-dimethyl-1H-indole-3-carboxylate and Mecarbinate
