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 6-[(3,4-dihydroxyphenyl)methyl]-1-[(4,5-dimethylfuran-2-yl)methyl]-3-(2-ethylsulfanylethyl)piperazine-2,5-dione ?
user
C22H28N2O5S
assistant