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 (6S,7S,8R)-4-benzyl-8-(hydroxymethyl)-7-(4-prop-1-enylphenyl)-1,4-diazabicyclo[4.2.0]octan-2-one ?
user
C23H26N2O2
assistant