You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S,3aS,7aR)-1-[(5-methyl-1,2-oxazol-3-yl)methyl]-3-[(6-methylpyridin-2-yl)methoxy]-3,3a,5,6,7,7a-hexahydro-2H-pyrano[3,2-b]pyrrole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H25N3O3
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