You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S,3S,5R)-3-methyl-3-[(Z)-2-(3-methyl-1,2-oxazol-5-yl)ethenyl]-4,4,7-trioxo-4lambda6-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C13H14N2O6S
assistant