You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4S)-5-[2-[[(2S)-1-ethoxy-1-oxo-4-phenylbutan-2-yl]amino]propanoyl]-2,3,3a,4,6,6a-hexahydrofuro[2,3-c]pyrrole-4-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H30N2O6
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