You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [(3S,3aR,6R,6aS)-3-(pyridin-2-ylmethylamino)-2,3,3a,5,6,6a-hexahydrofuro[3,2-b]furan-6-yl] N-cyclohexylcarbamate into its molecular formula.
user
C19H27N3O4
assistant