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 5-[[(4R,5R)-2-ethyl-4-(methoxymethyl)-2,7-diazaspiro[4.4]nonan-7-yl]methyl]-4-methyl-1,3-thiazole ?
user
C16H27N3OS
assistant