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 tert-butyl 1-[(3R)-1-[4-(diethylsulfamoyl)phenyl]sulfonylpiperidine-3-carbonyl]-1,6-diazaspiro[3.3]heptane-6-carboxylate ?
user
C26H40N4O7S2
assistant