You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule 1-[[(1S)-1-[3-[(1S)-1-amino-4-carboxybutyl]-1,2,4-oxadiazol-5-yl]-2-hydroxyethyl]carbamoyl]pyrrolidine-2-carboxylic acid ?
user
C15H23N5O7
assistant