57310-23-3 Eboracin Indeno(1,2-b)pyrrole-3-carboxylic acid, 1,3a,4,8b-tetrahydro-3a,8b-dihydroxy-2-methyl-4-oxo-, methyl ester Methyl 1,3a,4,8a-tetrahydro-3a,8b-dihydroxy-2-methyl-4-oxoindeno(1,2b)pyrrole-3-carboxylate