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 N,N-dimethyl-8-[(2-methyl-1,3-thiazol-4-yl)methyl]-1-oxa-4,8-diazaspiro[5.5]undecane-4-carboxamide ?
user
C16H26N4O2S
assistant