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 2-hydroxy-N-[(6R)-4-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-7-yl]-2-phenylacetamide .
user
C15H16N2O3S
assistant