You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (6R)-4-acetamido-3-(5-amino-1,3,4-thiadiazol-2-yl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid .
user
C11H11N5O4S2
assistant