You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4S,4aS,5R,5aS,6S,12aS)-5a-amino-9-[[2-(dimethylamino)acetyl]amino]-4-ethyl-5,10,12-trihydroxy-12a-(hydroxymethyl)-3,6-dimethyl-11-methylidene-1-oxo-4,4a,5,6-tetrahydrotetracene-2-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C29H38N4O7
assistant