You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 5-cyano-N-[(S)-oxan-4-yl-(3-propan-2-yl-1,2,4-oxadiazol-5-yl)methyl]-1H-pyrrole-3-carboxamide .
user
C17H21N5O3
assistant