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 (3S)-3-[(E)-4-(1,3-benzodioxol-5-yl)-2-oxobut-3-enyl]-5-chloro-3-hydroxy-1-[(4-methylphenyl)methyl]indol-2-one .
user
C27H22ClNO5
assistant