You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 1-(7-oxaspiro[3.5]nonan-3-yl)-3-(4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)urea ?
user
C16H23N3O2S
assistant