You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (5R,6R,7R)-2-N-(2-chlorophenyl)-7-ethyl-3-(5-hydroxypentyl)-4-oxo-6-N-propyl-10-oxa-3-azatricyclo[5.2.1.01,5]decane-2,6-dicarboxamide by IUPAC nomenclature, provide its molecular formula.
user
C26H36ClN3O5
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