ethyl (methyl 1H-indole-3-acetate)-1-carboxylate

ethyl N-(2-iodophenyl)carbamate

[2-(2,5-Dimethoxy-2,3-dihydro-furan-3-yl)-phenyl]-carbamic acid ethyl ester

羟基乙酸

3-(carboxymethyl)-1H-indole-2-carboxylic acid