5′-Ethyl 3′-methyl 2′-amino-6′-(2-ethoxy-2-oxoethyl)-1-methyl-2-oxo-1,2-dihydrospiro[indole-3,4′-pyran]-3′,5′-dicarboxylate

2′-Amino-6′-(2-éthoxy-2-oxoéthyl)-1-méthyl-2-oxo-1,2-dihydrospiro[indole-3,4′-pyran]-3′,5′-dicarboxylate de 5′-éthyle et de 3′-méthyle

5′-Ethyl 3′-methyl 2′-amino-6′-(2-ethoxy-2-oxoethyl)-1-methyl-2-oxo-1,2-dihydrospiro[indole-3,4′-pyran]-3′,5′-dicarboxylate

5′-Ethyl-3′-methyl-2′-amino-6′-(2-ethoxy-2-oxoethyl)-1-methyl-2-oxo-1,2-dihydrospiro[indole-3,4′-pyran]-3′,5′-dicarboxylat

Spiro[3H-indole-3,4′-[4H]pyran]-3′,5′-dicarboxylic acid, 2′-amino-6′-(2-ethoxy-2-oxoethyl)-1,2-dihydro-1-methyl-2-oxo-, 5′-ethyl 3′-methyl ester

5-O′-ethyl 3-O′-methyl 2′-amino-6′-(2-ethoxy-2-oxoethyl)-1-methyl-2-oxospiro[indole-3,4′-pyran]-3′,5′-dicarboxylate