You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(2R)-2-morpholin-4-yl-2-[(3R)-oxolan-3-yl]ethyl]-1,3-dihydroisoindole-2-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H27N3O3
assistant