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-(14,14-dimethyl-2,16-dioxa-4,10-diazatricyclo[15.4.0.03,8]henicosa-1(21),3(8),4,6,17,19-hexaen-10-yl)-1-(4-methyl-1,4-diazepan-1-yl)ethanone .
user
C27H38N4O3
assistant