You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named morpholin-4-yl-[(1S,2R,6S,8S,9R)-4,4,11,11-tetramethyl-3,5,7,10,12-pentaoxatricyclo[7.3.0.02,6]dodecan-8-yl]methanone by IUPAC nomenclature, provide its molecular formula.
user
C16H25NO7
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