You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 6-amino-7,7-dimethyl-N-[(4R)-3-oxo-1,2-oxazolidin-4-yl]-2-oxabicyclo[3.2.0]heptane-6-carboxamide ?
user
C12H19N3O4
assistant