NSC303245 Pyrrolo[2,3-b]azepine-3,5-dicarboxylic acid, 1,6,7,8-tetrahydro-4-hydroxy-1-methyl-7-oxo-, 3-ethyl 5-methyl ester Pyrrolo[2,3-b]azepine-3,5-dicarboxylic acid, 1,6,7,8-tetrahydro-4-hydroxy-1-methyl-7-oxo-, 3-ethyl-5-methyl ester