You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-2-(hydroxymethyl)-N-[(1R,2R,4S)-1,7,7-trimethyl-2-bicyclo[2.2.1]heptanyl]morpholine-4-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H28N2O3
assistant