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 5-[4-(3-hydroxyanilino)phthalazin-1-yl]-2-methyl-N-[[(2S)-oxolan-2-yl]methyl]benzenesulfonamide .
user
C26H26N4O4S
assistant