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 20-tert-butyl-5,5,6,6-tetramethyl-7-oxa-1,11,19-triazapentacyclo[10.8.0.02,10.04,8.013,18]icosa-2(10),3,8,11,13,15,17,19-octaene .
user
C24H27N3O
assistant