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 (2S,4S)-4-(9H-fluoren-1-yl)-2-[2-[2-hydroxyethyl-(4-methoxyphenyl)sulfonylamino]ethoxy]-N-[4-(6-methyl-1,3-benzothiazol-2-yl)phenyl]-3,4-dihydro-2H-pyran-6-carboxamide .
user
C44H41N3O7S2
assistant