You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (2S,6S)-10-benzyl-4-ethyl-2-methyl-1-oxa-4,10-diazaspiro[5.6]dodecan-3-one;sulfane .
user
C19H32N2O2S2
assistant