You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance N-(1-amino-3-methyl-1-oxobutan-2-yl)-8-buta-1,3-dien-2-yl-N-methyl-5-oxa-2,8-diazaspiro[3.5]nonane-2-carboxamide .
user
C17H28N4O3
assistant