You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 10,16-bis(1-phenylethyl)-18-oxa-5,8,10,16-tetrazapentacyclo[10.7.1.02,7.08,20.014,19]icosa-1(20),2(7),3,5,12,14(19)-hexaene ?
user
C31H30N4O
assistant