You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4R,4aS,12aR)-9-(4,5-dihydroxy-6-methyloxan-2-yl)-1,4,10,11-tetrahydroxy-12a-methoxy-6-methyl-3,12-dioxo-4a,5-dihydro-4H-tetracene-2-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H29NO11
assistant