You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule [(1S,4R,5R,6R,8R,10S,11R,12S,13R,16R,18S,21R)-8-[(1S)-1-ethoxy-2-hydroxy-2-methylpropyl]-11-hydroxy-4,6,12,17,17-pentamethyl-9-oxahexacyclo[11.9.0.01,21.04,12.05,10.016,21]docosan-18-yl] 3-methylpiperazine-1-carboxylate into molecular formula.
user
C38H64N2O6
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