You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (6S,6aS)-3,6-dihydroxy-2-methoxy-5-methyl-6,6a,7,9-tetrahydropyrrolo[2,1-c][1,4]benzodiazepine-8,11-dione by IUPAC nomenclature, provide its molecular formula.
user
C14H16N2O5
assistant