1H-indole-1-carboxylic acid, 5-bromo-3-(1-cyano-2-methoxy-2-oxoethylidene)-2,3-dihydro-2-hydroxy-, methyl ester, (3Z)- InChI=1/C14H11BrN2O5/c1-21-13(19)9(6-16)11-8-5-7(15)3-4-10(8)17(12(11)18)14(20)22-2/h3-5,12,18H,1-2H3/b11-9 methyl (3Z)-5-bromo-3-(1-cyano-2-methoxy-2-oxoethylidene)-2-hydroxyindoline-1-carboxylate