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 19,22-dioxa-3,10-diazatetracyclo[23.3.1.112,16.04,9]triaconta-1(28),2,4,6,8,10,12,14,16(30),25(29),26-undecaene-29,30-diol ?
user
C26H26N2O4
assistant