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

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

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

5′-Isopropyl-3′-methyl-2′-amino-1-(2-methoxy-2-oxoethyl)-6′-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-1,2-dihydro-1-(2-methoxy-2-oxoethyl)-6′-methyl-2-oxo-, 3′-methyl 5′-(1-methylethyl) ester

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

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