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 (1R,2R,6S,8R,9S)-4,4,11,11-tetramethyl-N-(thiophen-2-ylmethyl)-3,5,7,10,12-pentaoxatricyclo[7.3.0.02,6]dodecane-8-carboxamide .
user
C17H23NO6S
assistant