You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule [(3aR,4S,5R,6aS)-4-ethynyl-3,3a,4,5,6,6a-hexahydro-2H-cyclopenta[b]furan-5-yl] acetate into molecular formula.
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C11H14O3
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