You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(1R)-1-[(1R,2R,4R)-2-bicyclo[2.2.1]heptanyl]ethyl]-3-(3,5-dimethyl-4-nitropyrazol-1-yl)propanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H26N4O3
assistant