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 2-(6-ethylpyridin-3-yl)-N-[(3S)-2-oxo-5-phenyl-1,3-dihydro-1,4-benzodiazepin-3-yl]spiro[5,7-dihydropyrazolo[5,1-b][1,3]oxazine-6,1'-cyclobutane]-3-carboxamide .
user
C32H30N6O3
assistant