82970-82-9 Benzoic acid, 4-((((5-(6-ethoxy-3-methyl-6-oxo-2-hexenyl)-1,3-dihydro-6-methoxy-7-methyl-3-oxo-4-isobenzofuranyl)oxy)carbonyl)amino)- Cam prodrug Ethyl O-(N-(4-carboxyphenyl)carbamoyl)mycophenolate NSC 297879D NSC-297879D